> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/bpi-m1/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/bpi-m1/en/bpi-m137vlithiumbatteryinterface.md).

# BPI-M 3.7V lithium battery interface

**1,Battery interface of BPI-M1:**

![](https://1043524483-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2HWtR4yn0n86hux-lY%2F-M2HWuD9ps7L0GChhV74%2F-M2HX3hPoEa3pe3NjfGx%2FBPI-M1%20battery.JPG?generation=1584080160100754\&alt=media)

use way same as BPI-M3.

<https://bananapi.gitbooks.io/bpi-m3/content/bpim3lithiumbatteryinterface.html>