had a protek life puff recently. Pack wasn't that old so I was able to warranty the battery. I did about half the break-in of the first one on my charger, other half in buggy. This time around I may do the entire break-in on my charger. I'm charging at 1c and discharging at about 1.2amp since the battery doesn't seem to like discharge at 1.4 when new, at least my first one didn't. Wondering what settings others are using. Also learned I should always balance charge pack