At 11:08 AM 7/20/98 PDT, you wrote: The power supply is probably rated at 6A, not 6Ah. 6 amps charging would be too much for an 1.7Amp hour battery and would greatly shorten its life. 200 or 300 mA would be much better. However, charging a 12 Volt battery off a 12 Volt regulated power supply most likely will not completely charge it, as the float charging voltage is closer to 13.5 volts. You need something designed as a charger to get the full capacity from the battery. -Dave