I have a 2S lipo battery that I want to charge. Normally, I'd charge it with a balanced 2S lipo charger like this, but for my application, I want to embed the charger in the device, and consumer chargers are too big.
I also don't want to design my own balanced 2S charger from scratch.
I have several super cheap tiny single-cell lipo chargers like this. Is it possible to combine two of these to make a 2S balanced charger?
The circuit I'm thinking of would look something like this:
Would this work? Is there anything I'm missing? Should I put schottky diodes between the charger output and the positive cell terminal?