# BPI-M2 Ultra 3.7V lithium battery interface

![](/files/-M2HXPcajMT7Lb38YwwW) so you can use this interfact connect 3.7V lithium battery.

SCH:

![](/files/-M2HXPcc7iby0nyQ159S)

battery interface spec:

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

**BPI-M2 Ultra test 3.7V lithium battery interface with Ubuntu linux**

Lithium battery discharge

![](/files/-M2HXPcee8ODu0ggc7Gb)

Battery Charger

![](/files/-M2HXPcgdp6wkCy6NZ3J)

Lithium battery charger 100%

![](/files/-M2HXPciStips-me7jYz)


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