Hi,
I’ve been busy charging some batteries that I just pulled from a pack, and have been using both some “normal” chargers (a Jetbeam i4 and a TF one) and an Accucel.
The Accucel is faster, so I’ve been charging 2 at a time in series (2S), but not letting it finish, and then before it’s done, moving the batteries to either the i4 or TF to finish charging.
The main reasons I do that is that it’s faster, and also I notice that, in the past, when the Accucel terminates, the battery voltages are usually a little lower than 4.20V.
I had one pair on the Accucel, and I thought I had checked voltages before putting them on the Accucel, but I happened to pull them off before the charger stopped, and measure the voltages, and one of them was at 3.98V and the other was at 4.38V!
I think that I know that answer to this question, but why was that (maybe I forgot to check voltages before charging)?
Also is it a bad thing to charge batteries in series on a hobby charger, in general? I thought that RC guys do that a lot?
Thanks,
Jim (still learning!)