John,
Thanks for the info. For my last set of Fusion 3300's I charge at 5amps (since that's what they were matched at) and use a temp. sensor. I set the sensor to cut-off when the pack get's to 115 deg F. The pack actually heats up further after the charge stops and maxs out at 130 degF. I've read that temp. charging is the best way to ensure you don't overheat the packs (obviously) and loose the punch. Do you have any comments on temp. charging these packs? what kinda temps do you see when you charge/step charge?
Thanks