Hi all I have a small project I am working on and it is a, intelligent Pb acid battery charger for a system with 3 pcs of 12 volt Pb acid batteries connected in series each battery is a 100Ah type. I want to charge them with 10 A, and the charging have to stop when they are fully charged either controlled by the cell voltage, time or some thing else I haven't thought about. I want to use PWM and of cause this charger have to be controlled by a processor. I don't want to invent every thing again and there have been a lot of threads regarding charging batteries, so perhaps there have been one regarding a project like mine. If some one have a link to a similar project, or some other information I can use in my project I will be very pleased.