Flightpower in series

[slow-stampede]

I have 2 2s flightpowers and I want to charge them at once, so put them in series. When I look at the balance tap for the battery, there are 3 red and 1 black wire....it doesn't make sense to me and I'm wondering why there are so many wires. Shouldn't there only be 2 red and 1 black wire? Has anyone charged these in series using a LBA10 balancer?

[BrianG]

Well, you have two 2s packs. Each pack has three wires. To charge and balance in series, you'd have to make an adaptor cable. See the bottom of this page for a diagram of how to do this.

And this is what a 2s+2s adaptor looks like:



Of course, the above info is for Hyperion/Polyquest balancer plugs, but the principle is exactly the same...

[mmdooley]

I think I understand. MQI On the single plug that has 4 black and 1 red, Is the single red divided to both plugs?

[slow-stampede]

The thing is, the 2s packs have 4 wires each. 3 red and 1 black.

[BrianG]

That's weird. Usually there is one more wire than the number of cells. So, 2s=3 wires, 3s=4 wires, and so on. You could always use a meter to determine what is what, just be careful to not let the meter probes touch!

[slow-stampede]

Well, looks like the flighpowers wires are coded correctly and the last red is dead. I guess this means that I can't use LBA10 balancers with the flightpowers since the balancer uses a positive as a ground and the flightpowers use a negative as a ground.