2x 2s = 4s. But how should I charge it?

[TSK]

My MMP showed up. I plan to run my unused 2s packs in series to make a 4s pack. My question is, would it be wiser to balance charge them in series with a Y adapter or to balance charge them as individual 2s packs?

I'm guessing it's betst to charge them in series, but was unsure if that's the way to go or not.

[Ty@Tekin]

Charge it like a 4S with them in series or separate them and charge each pack as a 2S. If you want them balanced properly (which you shouldn't have to do often) then charge them separately with a balancer.

[Charlie-III]

Originally Posted by Ty@Tekin

Charge it like a 4S with them in series or separate them and charge each pack as a 2S. If you want them balanced properly (which you shouldn't have to do often) then charge them separately with a balancer.

+1.

If they are wired as single 2S packs with a balance port, charge them that way. No new adaptors needed.
Charging them as a 4S will require adapting the balance port to 4S.