Quote:
Originally Posted by BrianG
...4s at 25A will take a max of 420w! At some point, the only equipment capable of that level of power/current will be bench CC/CV power supplies, but they don't have all the error checking and balancing functions that true chargers do. ....To get 420w out of 12v, you'd need around a 45-50A supply. Not cheap.
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Yep. The Ebike guys are starting to use CCCV bench power supplies with standalone balancers like the battery medic from HC. With 12 to 20s setups and 10 or 20a/h packs we need it just to get a charge below 4 hours.