CN101291003B - Battery pack with replaceable battery and electronic device thereof - Google Patents

Abstract

The invention relates to a battery pack with replaceable batteries and an electronic device thereof, wherein the battery pack with replaceable batteries is used for a portable electronic device and comprises a containing shell, at least one battery, a protective circuit board and a connector. The battery is placed in the accommodating shell. The protection circuit board is arranged in the accommodating shell and is electrically connected with the two electrodes of the battery. The connector is arranged on the protective circuit board and electrically connected with the protective circuit board, and the connector penetrates through a crevasse of the accommodating shell and is partially exposed out of the accommodating shell so as to be connected with the portable electronic device. When the portable electronic device is externally connected with an external power supply, the charging circuit carries out testability charging on the battery, and the detection circuit detects the state change of the battery. The detection circuit can detect whether the battery is chargeable or not, and the use safety of the battery is ensured.

Description

Battery pack with replaceable battery and its electronic equipment

technical field

The invention relates to a battery pack and electronic equipment, in particular to a battery pack and electronic equipment with replaceable batteries.

Background technique

Portable electronic devices (such as notebook computers or personal digital assistants, etc.) can not only be powered by a fixed power source such as an AC power source, but also usually use a battery pack as a power source for portability.

Taking notebook computers as an example, they are usually used with a manufacturer-specific rechargeable lithium battery pack. However, when the battery pack cannot be used, users usually purchase a new rechargeable lithium battery pack from the original notebook computer manufacturer, or Please ask the battery manufacturer to directly replace the battery core, or buy a bulky and heavy general-purpose battery-type AC (general household socket) DC (car cigarette lighter 12V) dual-purpose emergency power supply, so that it can be used when going out. Use a laptop.

In addition, when the user goes out with the notebook computer, but there is no place to use AC power for power supply, and the battery pack of the notebook computer has also run out of power, this will make the notebook computer unable to continue to operate due to lack of power, thus causing the user Inconvenient to use.

Furthermore, the batteries in the battery pack have a fixed service life. If the batteries in the battery pack are no longer usable, or the original factory no longer sells the above-mentioned battery packs, even if the function of the notebook computer itself is still good, it can only be connected to an external laptop. AC power supply to use, thus causing great inconvenience to users.

Therefore, how to provide a battery pack and an electronic device with a replaceable battery in view of the above-mentioned problems is an important issue.

Contents of the invention

The object of the present invention is to provide a battery pack and electronic equipment with a user-replaceable battery in a novel structure, which is very suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. A battery pack with replaceable batteries proposed according to the present invention is used for a portable electronic device. The battery pack includes: a housing; at least one battery placed in the housing; a protection circuit A board installed in the above-mentioned housing and electrically connected to the two electrodes of the above-mentioned battery, wherein the above-mentioned protection circuit board has a charging circuit and a detection circuit electrically connected; and a connector is arranged on the above-mentioned The protective circuit board is electrically connected with the above-mentioned protective circuit board, and the above-mentioned connector is partially exposed to the above-mentioned accommodating case through a breach of the above-mentioned accommodating case, so as to be connected with the above-mentioned portable electronic device; wherein , when the portable electronic device is connected to an external power source, the charging circuit performs test charging on the battery, and the detection circuit detects the state change of the battery.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned battery pack, wherein the detection circuit detects the change in capacitance or voltage of the battery after the test charge.

In the aforementioned battery pack, when the aforementioned battery is rechargeable, the aforementioned external power supply provides power to the aforementioned charging circuit, and the aforementioned detection circuit controls the aforementioned charging circuit to continuously charge the aforementioned battery; when the aforementioned battery is not rechargeable, the aforementioned detection circuit The above-mentioned charging circuit is controlled not to charge the above-mentioned battery.

In the aforementioned battery pack, when the aforementioned battery is rechargeable, the aforementioned external power supply provides power to the aforementioned charging circuit, and the aforementioned portable electronic device controls the aforementioned charging circuit to continuously charge the aforementioned battery; when the aforementioned battery is not rechargeable, the aforementioned rechargeable The portable electronic device controls the charging circuit not to charge the battery.

The aforementioned battery pack, wherein the detection circuit detects the capacity or voltage of the battery to determine the remaining power of the battery.

In the aforementioned battery pack, the protection circuit board further includes: a temperature sensing circuit for sensing the temperature of the battery.

In the above-mentioned battery pack, a plurality of batteries are placed in the above-mentioned accommodating case, and the above-mentioned batteries are arranged side by side and electrically connected in series.

In the aforementioned battery pack, the accommodating housing includes an upper housing and a lower housing, and the upper housing and the lower housing form the opening through which the connector passes.

The aforementioned battery pack, wherein the accommodating case includes a main case and a side cover, the main case has at least one opening, the battery is placed in the main case, and the side cover covers the main case the above opening.

The aforementioned battery pack further includes: at least one conductive sheet disposed on an inner surface of the accommodating case and electrically connected to the battery and the protective circuit board.

The purpose of the present invention and the solution to its technical problem also adopt the following technical solutions to achieve. According to an electronic device proposed by the present invention, it includes: a portable electronic device; and a battery pack with replaceable batteries for the portable electronic device, the battery pack has an accommodating shell, at least one A battery, a protection circuit board and a connector, the battery is placed in the above-mentioned housing, the protection circuit board is installed in the housing and electrically connected to the two electrodes of the battery, the connector is provided on the protective circuit board and electrically connected with the protective circuit board, the connector passes through a breach in the housing case and partly exposes in the housing case, so as to be connected with the portable electronic device ; Wherein, the above-mentioned protection circuit board has a charging circuit and a detection circuit electrically connected, when the above-mentioned portable electronic device is externally connected to an external power supply, the above-mentioned charging circuit performs test charging on the above-mentioned batteries, and the above-mentioned detection The circuit detects the state change of the above-mentioned battery.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned electronic device, wherein the detection circuit detects the change in capacitance or the change in voltage of the battery after the test charge.

In the aforementioned electronic device, when the aforementioned battery is rechargeable, the aforementioned external power supply provides power to the aforementioned charging circuit, and the aforementioned detection circuit controls the aforementioned charging circuit to continuously charge the aforementioned battery; when the aforementioned battery is not rechargeable, the aforementioned detection circuit The above-mentioned charging circuit is controlled not to charge the above-mentioned battery.

In the aforementioned electronic equipment, when the aforementioned battery is rechargeable, the aforementioned external power supply provides power to the aforementioned charging circuit, and the aforementioned portable electronic device controls the aforementioned charging circuit to continuously charge the aforementioned battery; when the aforementioned battery is not rechargeable, the aforementioned rechargeable The portable electronic device controls the charging circuit not to charge the battery.

In the aforementioned electronic device, the detection circuit detects the capacity or voltage of the battery to determine the remaining power of the battery.

In the aforementioned electronic device, the protection circuit board further includes: a temperature sensing circuit for sensing the temperature of the battery.

In the aforementioned electronic equipment, a plurality of batteries are placed in the above-mentioned housing, and the above-mentioned batteries are arranged side by side and electrically connected in series.

In the aforementioned electronic device, the accommodating housing includes an upper housing and a lower housing, and the upper housing and the lower housing form the opening through which the connector passes.

The aforementioned electronic device, wherein the housing housing includes a main housing and a side cover, the main housing has at least one opening, the battery is placed in the main housing, and the side cover covers the main housing the above opening.

In the aforementioned electronic equipment, the battery pack further includes: at least one conductive sheet disposed on an inner surface of the accommodating case and electrically connected to the battery and the protective circuit board.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from above technical scheme, main technical content of the present invention is as follows:

In order to achieve the above object, the present invention provides a battery pack with replaceable batteries for a portable electronic device. The battery pack with replaceable batteries includes a housing case, at least one battery, a protective circuit board and a connection device. The battery is placed in the housing. The protection circuit board is installed in the housing and electrically connected with the two electrodes of the battery. The connector is arranged on the protection circuit board and is electrically connected with the protection circuit board. The connector passes through a breach of the housing case and partially exposes to the housing case to connect with the portable electronic device. The protection circuit board has a charging circuit and a detection circuit electrically connected. When the portable electronic device is connected to an external power source, the charging circuit performs test charging on the battery, and the detection circuit detects the state change of the battery.

In addition, in order to achieve the above object, the present invention further provides an electronic device comprising a portable electronic device and a battery pack with a replaceable battery. The battery pack with a replaceable battery has an accommodating shell, at least one battery, a Protect the circuit board and a connector. The battery is placed in the housing, and the protection circuit board is installed in the housing and electrically connected with the two electrodes of the battery. The connector is arranged on the protection circuit board and is electrically connected with the protection circuit board. The connector passes through a breach of the housing case and partially exposes to the housing case to connect with the portable electronic device. The protection circuit board has a charging circuit and a detection circuit electrically connected. When the portable electronic device is connected to an external power source, the charging circuit performs test charging on the battery, and the detection circuit detects the state change of the battery.

By means of the above-mentioned technical scheme, the battery pack of replaceable batteries and its electronic equipment of the present invention have at least the following advantages and beneficial effects: due to the battery pack of replaceable batteries and electronic equipment of the present invention, users can use commercially available general dry batteries Or the rechargeable battery is put into the housing to serve as the power source of the portable electronic device, and the protection circuit board has a detection circuit to detect whether the battery is rechargeable, so it can be judged whether the battery in the housing is rechargeable or not. Rechargeable battery or non-rechargeable battery, and then determine whether the charging circuit continuously charges the battery, thus avoiding the situation that the battery is still being charged continuously when the battery is non-rechargeable, which will cause the battery to overheat or burn, so as to ensure that the battery pack and the security of portable electronic devices.

In summary, the battery pack of replaceable batteries and its electronic equipment of the present invention, wherein the battery pack of replaceable batteries is used in a portable electronic device, the battery pack includes a housing case, at least one battery , a protection circuit board and a connector. The battery is placed in the housing. The protection circuit board is installed in the housing and electrically connected with the two electrodes of the battery. The connector is arranged on the protection circuit board and is electrically connected with the protection circuit board. The connector passes through a breach of the housing case and partially exposes to the housing case to connect with the portable electronic device. Wherein, the protection circuit board has a charging circuit and a detection circuit electrically connected, when the portable electronic device is connected to an external power supply, the charging circuit performs test charging to the battery, and the detection circuit detects the state change of the battery . The detection circuit can detect whether the battery is rechargeable to ensure the safety of the battery.

The present invention has the above-mentioned many advantages and practical value, it has great improvement no matter in the structure or the function of the device, there is remarkable progress in the technology, and has produced the effect of being easy to use and practical, and compared with the existing electronic equipment The battery pack and its electronic equipment have enhanced and outstanding multiple functions, so that they are more suitable for practical use, and have wide application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

1 and 2 are schematic diagrams of a battery pack with replaceable batteries according to a preferred embodiment of the present invention.

FIG. 3 is a block diagram of a battery pack with replaceable batteries according to a preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of an electronic device according to another preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of a battery pack with replaceable batteries according to another preferred embodiment of the present invention.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation methods, Structure, characteristic and effect thereof are as follows in detail.

Referring to FIG. 1 , a preferred embodiment of the present invention provides a battery pack 1 with replaceable batteries, which includes a housing case 11 , a protection circuit board 12 , a connector 13 and a plurality of batteries 14 . Wherein, the battery 14 is placed in the housing 11 , and the protection circuit board 12 is installed in the housing 11 and is electrically connected to two electrodes (positive and negative) of the battery 14 . Furthermore, the connector 13 is disposed on the protection circuit board 12 and is electrically connected with the protection circuit board 12, and the connector 13 passes through a breach 113 of the housing case 11 to partially expose the housing case 11, thereby It is connected with a portable electronic device 2 (as shown in FIG. 4 ). In this way, the power provided by the battery 14 can be transmitted to the portable electronic device through the circuit on the protection circuit board 12 and the connector 13 .

Referring to FIG. 1 again, in this embodiment, the housing case 11 is composed of an upper housing 111 and a lower housing 112, and the size and shape of the housing housing 11 are in accordance with the size of the battery 14. to design. Certainly, the form of the accommodating shell 11 can be adjusted according to actual needs, and is not limited thereto.

In addition, the type of the battery 14 of the present embodiment can be a battery of general commercially available specifications, such as No. 1 to No. 4 (or A to AAA) batteries, and can be a non-rechargeable battery (such as a dry battery or an alkaline battery, etc.), Or a rechargeable battery (such as a nickel-metal hydride battery or a nickel-chromium battery, etc.).

Referring again to FIG. 1 , in this embodiment, in order to accommodate the batteries 14 efficiently and reduce the length of the battery pack 1 , the batteries 14 are first arranged in series and then arranged side by side. Moreover, since the voltage of the batteries 14 of common specifications is lower than that of lithium batteries, these batteries 14 are electrically connected in series in this embodiment so as to provide sufficient supply voltage. In fact, as long as the batteries can be connected in series to increase the voltage to the voltage required by the notebook computer or other electronic devices, the number of batteries or the number of the batteries in series are not limited to those disclosed in the present invention.

Furthermore, the user can install the battery 14 into the housing 11 by himself, or take out the battery 14 from the housing 11, so if the power of the battery 14 is exhausted, the user can remove the battery 14 Take it out from the accommodating case 11, and put it into a battery 14 with power for replacement.

In addition, please refer to FIG. 2, in this embodiment, the battery pack 1 has a plurality of conductive sheets 151-154, and the conductive sheets 151-154 are arranged on the inner surface of the lower casing 112, wherein the conductive sheets 152, 153 are used for The incoming batteries are electrically connected to different rows, and the conductive sheets 151 and 154 are used to electrically connect the battery 14 and the protection circuit board 12 .

Please also refer to Fig. 2 again, in the present embodiment, the batteries are connected in series into three strings. in the opposite direction. In detail, the leading positive electrode of the first battery string 141 is in contact with the conductive sheet 151 , while the tail negative electrode of the first battery string 141 and the leading positive electrode of the second battery string 142 are in contact with the conductive sheet 152 . The tail-end negative electrode of the second string of batteries 142 and the head-end positive electrode of the third string of batteries 143 contact the conductive sheet 153, while the tail-end negative electrode of the third string of batteries 143 contacts the conductive sheet 154, and the conductive sheets 151, 154 are connected via wires or The metal sheet is electrically connected to the protection circuit board 12 so that the nine batteries 14 are electrically connected in series.

In addition, the protective circuit board 12 of the present embodiment is composed of a printed circuit board and several electronic parts (such as: chips, capacitors, inductors or resistors, etc.), these electronic parts are assembled on the printed circuit board, and are connected with the printed circuit board. The wires of the circuit board are electrically connected to form a specific function circuit of the protection circuit board 12 .

Wherein, as shown in FIG. 3, the protection circuit board 12 of the present embodiment has a charging circuit 121 and a detection circuit 122 electrically connected. Here, the detection circuit 122 can detect whether the battery 14 is a rechargeable battery. . In this embodiment, the charging circuit 121 first charges the battery 14 as a test, and then the detection circuit 122 detects the change in the capacity or the voltage of the battery 14 after charging, so as to determine whether the battery 14 is chargeable. In addition, according to the voltage of the battery, it can also be distinguished whether it is a rechargeable battery (the voltage of the general non-rechargeable AA battery in the market is 1.5 volts, while the voltage of the rechargeable battery is 1.2 volts). It can detect whether the voltage of the inserted battery is a multiple of 1.5V or 1.2V, and if so, it can be immediately determined that the inserted battery is a rechargeable battery.

Continuing above, specifically, when the charging circuit 121 charges the battery 14 for a period of time, if there is no change in the capacitance or voltage, it can be judged that the battery 14 is not rechargeable; otherwise, if the capacitance or voltage If the variation changes, it can be judged that the battery 14 is in a rechargeable form.

In addition, the charging circuit 121 only charges the battery 14 for testing purposes, so the charging time does not need to be too long, so as to avoid the danger caused by charging a non-rechargeable battery.

Referring to FIG. 3 again, when the portable electronic device 2 is externally connected to an external power supply 3 (such as a fixed power supply or an AC power supply), the external power supply 3 can be used as a power source for the protection circuit board 12 for the charging circuit 121 and The detection circuit 122 performs an initial test.

In addition, in this embodiment, the power provided by the external power source 3 is given priority to drive the portable electronic device 2, and if there is any remaining power, it can be supplied to the battery pack 1, so the charging circuit 121 can continuously charge the battery 14. Charge to supplement the power of the battery 14 .

In this embodiment, in order to protect the safety of the portable electronic device 2 and the battery pack 1, the detection circuit 122 controls whether the charging circuit 121 continuously charges the battery 14 according to whether the battery 14 is a rechargeable battery or a non-rechargeable battery. Charge. If the battery 14 is rechargeable, the external power supply 3 provides power to the charging circuit 121, and the detection circuit 122 allows the charging circuit 121 to continuously charge the battery 14; otherwise, if the battery 14 is not rechargeable, even if the external power supply 3 provides power to The charging circuit 121 and the detection circuit 122 control the charging circuit 121 not to charge the battery 14 .

In addition, in another embodiment, the detection circuit 122 can also output the detected battery type (rechargeable or non-rechargeable) placed in the housing 11 to the portable electronic device 2 , and then the portable electronic device 2 controls whether the charging circuit 121 continuously charges the battery 14 according to the detection result. As mentioned above, when the battery 14 is rechargeable, the external power supply 3 provides power to the charging circuit 121, and the portable electronic device 2 controls the charging circuit 121 to continuously charge the battery 14; otherwise, when the battery 14 is not rechargeable, it can The portable electronic device 2 controls the charging circuit 121 not to charge the battery 14 . Therefore, the portable electronic device 2 can decide whether to transmit power to the charging circuit 121 according to the detection result, so as to achieve the control effect and avoid charging the non-rechargeable battery.

In addition, the battery pack 1 can also be provided with a charging switch (not shown in the figure), and the charging switch can also control whether the charging circuit 121 continuously charges the battery 14 . For example, the charging switch can be set between the connector 13 and the charging circuit 121 to achieve the control function.

Furthermore, in addition to detecting the type of the battery 14 , the detection circuit 122 of this embodiment can also detect the capacity or voltage of the battery 14 to determine the remaining power of the battery 14 . As shown in Figure 3, the protection circuit board 12 includes a memory 124 to store a comparison table Tab, wherein the comparison table Tab records the corresponding relationship between the voltage of each type of battery and the remaining power, so when the detection circuit 122 detects the battery After the voltage, the remaining power of the battery 14 can be obtained by looking up the table, and the result of the table lookup is output to the portable electronic device 2. Therefore, the portable electronic device 2 can judge whether the remaining power of the battery 14 is sufficient, and This determines whether the system enters hibernation, standby or shutdown.

In addition, the comparison table Tab can be set in the portable electronic device 2, and the detection circuit 122 can only output the detection result of the voltage to the portable electronic device 2, and the portable electronic device 2 can query Out of the remaining power of the battery 14.

In addition, please refer to FIG. 3 again, the protection circuit board 12 further includes a temperature sensing circuit 123 . When the inserted battery cannot be judged by the voltage as a rechargeable battery, the temperature sensing circuit 123 can be used to sense the temperature of the battery 14, and then control whether the charging circuit 121 needs to stop charging the battery, so as to prevent the battery 14 from being damaged. Danger of overheating.

As shown in FIG. 4, another preferred embodiment of the present invention provides an electronic device 4, which includes the portable electronic device 2 of the foregoing embodiment and a battery pack 1 with a replaceable battery, wherein the portable electronic device 2 can be Be it a laptop or a personal digital assistant, etc.

When the battery 14 in the battery pack 1 cannot be used, the power is exhausted and it is inconvenient to connect an external power supply, the user can easily obtain batteries of various standard specifications from the market, and put these batteries 14 into the battery pack 1, and then the battery The set 1 can be inserted into a power supply slot of the portable electronic device 2 as a power source.

Referring to FIG. 5 again, the accommodating case 16 of this embodiment is a side-opening type, which includes a main case 161 and a side cover 162 , wherein the main case 161 has at least one opening 163 . In this embodiment, the battery 14 is put into the main casing 161 through the opening 163 , and then the side cover 162 covers the opening 163 of the main casing 161 to prevent the battery 14 from falling.

Since the remaining components and variants of the battery pack 1 have been discussed in the foregoing embodiments, they are not repeated here.

In summary, according to the battery pack and electronic equipment with replaceable batteries of the present invention, users can put commercially available dry batteries or rechargeable batteries into the housing as the power source for portable electronic devices. And the protection circuit board has a detection circuit to detect whether the battery is rechargeable, so it can be judged whether the battery in the housing is a rechargeable battery or a non-rechargeable battery, and then determine whether the charging circuit continuously charges the battery. It can avoid the situation that the battery is overheated or burned due to continuous charging when the battery is not rechargeable, so as to ensure the safety of the battery pack and the portable electronic device.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (18)

1. A battery pack with a replaceable battery for a portable electronic device, characterized in that the above-mentioned battery pack includes: a housing; At least one battery is placed in the above-mentioned housing; A protection circuit board, installed in the above-mentioned housing case, and electrically connected to the two electrodes of the above-mentioned battery, wherein the above-mentioned protection circuit board has a charging circuit and a detection circuit electrically connected; and A connector is arranged on the protective circuit board and is electrically connected with the protective circuit board. The connector passes through a breach in the housing case and is partially exposed in the housing case, so as to communicate with the portable connected to electronic devices; Wherein, when the portable electronic device is connected to an external power source, the charging circuit performs a test charge on the battery, and the detection circuit detects the change in capacitance or voltage of the battery after the test charge, If there is a change in the capacitance or voltage, it is judged that the battery is chargeable, and if there is no change in the capacitance or voltage, it is judged that the battery is not rechargeable. 2. The battery pack according to claim 1, wherein when the battery is rechargeable, the external power supply provides power to the charging circuit, and the detection circuit controls the charging circuit to continuously charge the battery; When the battery is not rechargeable, the detection circuit controls the charging circuit not to charge the battery. 3. The battery pack according to claim 1, wherein when the battery is rechargeable, the external power supply provides power to the charging circuit, and the portable electronic device controls the charging circuit to continuously charge the battery, When the battery is not rechargeable, the portable electronic device controls the charging circuit not to charge the battery. 4. The battery pack according to claim 1, wherein the detection circuit detects the capacity or voltage of the battery to determine the remaining power of the battery. 5. The battery pack according to claim 1, wherein the protective circuit board further comprises: A temperature sensing circuit senses the temperature of the battery. 6. The battery pack according to claim 1, wherein a plurality of batteries are placed in the housing, and the batteries are arranged side by side and electrically connected in series. 7 . The battery pack according to claim 1 , wherein the accommodating case includes an upper case and a lower case, and the upper case and the lower case form the opening through which the connector passes. 8. The battery pack according to claim 1, wherein the accommodating case includes a main case and a side cover, the main case has at least one opening, the battery is placed in the main case, and the The side cover covers the opening of the main case. 9. The battery pack according to claim 1, further comprising: At least one conductive sheet is disposed on an inner surface of the accommodating case, and is electrically connected to the battery and the protection circuit board. 10. An electronic device, characterized in that it comprises: a portable electronic device; and A battery pack with replaceable batteries is used for the above-mentioned portable electronic device, the battery pack has a housing, at least one battery, a protection circuit board and a connector, the battery is placed in the housing , the protective circuit board is installed in the housing case and electrically connected to the two electrodes of the battery, the connector is arranged on the protective circuit board and electrically connected to the protective circuit board, and the connector passes through A breach of the above-mentioned accommodating shell is partly exposed in the above-mentioned accommodating shell, so as to be connected with the above-mentioned portable electronic device; Wherein, the protection circuit board has a charging circuit and a detection circuit that are electrically connected. When the portable electronic device is connected to an external power source, the charging circuit performs test charging on the battery, and the detection circuit detects Measure the change in capacity or the change in voltage of the above-mentioned battery after the above-mentioned test charge. 11. The electronic device according to claim 10, wherein when the battery is rechargeable, the external power supply supplies power to the charging circuit, and the detection circuit controls the charging circuit to continuously charge the battery. When the battery is not rechargeable, the detection circuit controls the charging circuit not to charge the battery. 12. The electronic device according to claim 10, wherein when the battery is rechargeable, the external power supply provides power to the charging circuit, and the portable electronic device controls the charging circuit to continuously charge the battery, When the battery is not rechargeable, the portable electronic device controls the charging circuit not to charge the battery. 13. The electronic device according to claim 10, wherein the detection circuit detects the capacity or voltage of the battery to determine the remaining power of the battery. 14. The electronic device according to claim 10, wherein the protective circuit board further comprises: A temperature sensing circuit senses the temperature of the battery. 15. The electronic device according to claim 10, wherein a plurality of batteries are placed in the housing, and the batteries are arranged side by side and electrically connected in series. 16. The electronic device according to claim 10, wherein the accommodating housing includes an upper housing and a lower housing, and the upper housing and the lower housing form the opening through which the connector passes. 17. The electronic device according to claim 10, wherein the accommodating case includes a main case and a side cover, the main case has at least one opening, the battery is placed in the main case, and the The side cover covers the opening of the main case. 18. The electronic device according to claim 10, wherein said battery pack further comprises: At least one conductive sheet is disposed on an inner surface of the accommodating case, and is electrically connected to the battery and the protection circuit board.

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