I've seen brand new pacs ruined in less than 5 charges by using too high of a charge rate. Overheating will destroy them a lot like over heating will demag a motor.

This is intended for their own packs, but its good advice on pretty much any stick pack. I would not be in a rush to bump the charge rate up due to concern about overheating (realize this was written for 4200 and 4600 pacs) -

http://www.promatchracing.com/stickpackins.php


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