Going Lipo, but confused about balancers..

[MetalMan]

The battery is plugged into the charger like normal, and the balancer is plugged into the balancing connector on the battery (it only fits one way). Charge the battery like you normally would, and the balancer will do its thing.

But if you plan on charging your 2s and 3s packs as a 5s on the same balancer, you're going to need an adapter harness to connect the two batteries together. I've drawn a picture of what it should look like in another thread, but I'll have to look for the picture.