HAT flat mounting for 3.7V cell / Battery Management System Raspberry Pi 2 / 3 / 3B+

This inverter is designed to be mounted on a Raspberry Pi or any other SBC sharing its GPIO pinout. The HAT is equiped with a two-way GPIO port that allows chain mounting other modules and HATs above and below.

Its form-factor and spacers are scaled on the RPI (works with all models including 2-3-3B +). It can be easily integrated to different types of installation with minimal need for additionnal space.

The circuit handles fast charge / discharge of the batteries (2A input and output) during operation for a comfortable and safe use. Once mounted, it is possible to add a software indicator as to virtually display the remaining battery. Moreover it is possible to program an automatic shut-down when the battery is too low.


Please note, only the inverter board is included to this item: the Rasbperry Pi nor the battery are provided.

Passthrough

The charging circuit is independent of the RPI power circuit. That is to say that it is possible to charge the battery while the RPI is running.

The board has all the essential protection against battery excessive discharge and overload.

Safety Notes

Caution this HAT BMS UPS can not operate while the HDMI port is active. The module is not intended for this use.

The Micro-USB port on the inverter is designed to charge the battery only. Do not connect it with your Raspberry Pi own micro-USB input.

The charge / discharge manager and the protections can handle any types of Lithium Battery as long as it delivers 3.7V with a discharge current of at least 2A.

If you want to add batteries with one another (with a battery cradle or in a custom assembly) make sure that the cells are connected in parallel (and especially not in serie).

Dimensions and distances