> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/banana-pi-bpi-m2-magic-iot-development-board/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bananapi.gitbook.io/banana-pi-bpi-m2-magic-iot-development-board/chapter1/bpi-m2-magic-3.7v-lithium-battery-interface.md).

# BPI-M2 Magic 3.7V lithium battery interface

![](https://2676791179-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2HWtQZi70-rAX2he34%2F-M2HWuQWfmMDDcGnCw7t%2F-M2HXGdEZC1SedMLF_JE%2Fmagic%20battery.jpg?generation=1584080206703467\&alt=media)

you can use this interfact connect 3.7V lithium battery.

SCH:

![](https://2676791179-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2HWtQZi70-rAX2he34%2F-M2HWuQWfmMDDcGnCw7t%2F-M2HXGdGhI-TEFZ91IAn%2F7f6a1996-b8c5-4c6d-a059-1a4525c4bcb2.png?generation=1584080207152370\&alt=media)

battery interface spec:

<https://drive.google.com/file/d/0B4PAo2nW2KfnSmVuVDhQc0NLdG8/view?usp=sharing>