1. C

    How to charge One cell dead Lead acid batteries?

    I have a couple of old lead acid batteries, both have voltage around 10V which means one cell is dead. I want to use them for some other purposes like lighting up some LEDs before selling them for scrap. I can use a boost (step up) converter to get 12V out of them. But how do I charge them...
  2. Amir Mohammad Soltanpour

    Variable Current Lead Acide Battery Charger

    Digitally controlling charge voltage with some regulator like Lm317 is a matter of using some resistor and transistor as stated in lm317 datasheet to select from multiple pre defined voltage. But what about choosing output current ? How it can be adjust with digital signals from...