Originally Posted by
gigaplex
That depends on the specs of the ISDT charger. Does the charger manual tell you the input requirements to do what you want?
If you want to charge two 4S packs off one 4S pack, that supply pack is going to need a very high capacity. You might be better off with a deep cycle lead acid battery for the supply.
This is the spec
I use a 24v power supply at home so really I’d never need to charger 2x 4S lipos but would definitely want to charger 2x 2S 300-400mah lipos as that will be at the club races I go too.