Tag Archives: BQ77905

3s-5s BMS based on BQ77904 and BQ77905

Lately I’ve been building some custom battery packs and I’ve been unlucky with the cheap BMS boards.

That’s why I’ve decided to build my own – something that could work stand alone and provide basic protection.

For that I chose the BQ77904 and BQ77905 from TI.

They have all the functionality that I need and they can be chained to create up to 20S packs.

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Category: Electronica | Tags: , , ,