Hey all, Just an idea: would it be possible to make a simple battery charger for NiM= H and Li-Ion batteries using a PIC and some adjustable linear regulators in constant current arrangement? This should be the cheapest method since it would only take a few cheap linear regulators and a PIC MCU (purpose of the PIC is for proper charge termination, for example: negative delta V). --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .