I have a bunch of 4 cell batteries, some are 2500 mah and some are 2700 mah. Can I charge them all at the same time from a storage charge to full charge?
Now I see they have a 2800 mah 4 cell which will compound the problem if I buy some of them.
Thanks,
MM
I have a quad charger; 4 ports x 80W max each. I think the same brand has a 4 x 100 out now. I balance charge 4 packs at once. Heck, I charge my RC sailplanes, and my transmitters, and a lead acid battery for the winch all at once. I just have to pay attention to the settings.
If you have all 4S packs, it's easy-peasy.
Other than that, you could discharge "flown" packs to a set voltage, one at a time (or for that matter CHARGE them lightly to storage voltage individually), then hook them up on a para-board, and charge all at the same time.
The issue doesn't change though unless your charger with one output has some balls (watts)....If it's limited in amp delivery, you're still going to take a long time to fill your 10,000ma+ battery (4x2500+ma)...
So, to save time, you either need to parallel charge on one output at high amperage (1C) for a reasonable charge time, or like me get multiple outputs and keep the battery sizes smallish. Essentially you are doing the same thing either way. You need some watts to fill some tanks.
Since I still fly RC, and have to charge LiIon, LiFe, NiMH at the same time, the Quad charger makes sense. And 4 LiPo's is easy too.
R,
Chris