cwah wrote:Actually, if the hyperion can't charge them 'out of the box', which charger can charge them?
Oh, here's a weird way I think you could charge two of these 7S batteries with a hyperion charger with no additional parts or adapters. I don't really recommend this, lol.
This works because the hyperion balance board connectors are all paralelled - ie all the pin 1's are connected, all the pin 2's are connected, etc.
First you would need to figure our which balance plug comes first in series. The last pin of one connector is paralleled to the first pin of the other connector. For this example lets say the 4S connector pin 5 is paralleled to pin 1 of the 3S connector. If this is incorrect, just reverse the two connectors in these these instructions.
What you can do is first plug the 4S connector into the hyperion balance board's 4S connector slot, like usual. Then you would connect the 3S connector on the right side of the 7S connector on the same balance board. There alignment guide of the balance board connector will not fit correctly, so you will have to trim a small slot into the 7S balance board receptacle connector to get the 3S connector to fit. This should be fairly easy.
Do this procedure on both balance boards and viola, you can charge two 7S batteries with the hyperion charger with no adapters.
Or you can do it the much better way and just use a 7S connector...