MrWizard wrote:
if these batteries are 7 years old
then the procedures you have been using are working
wa8yxm wrote:
If you use multiple identical single output chargers you will be OK
KEY WORD: IDENTICAL.. They should be smart chargers as well
If you use a multiple out charger with ISOLATED OUTPUTS (most are common negative) you will be ok
If you use a Multi OUt with one lead common to all outputs You will **NOT** BE Ok
The noco has pos and neg for each output, and they each have sensors -- if one ouput is connected to a battery the others don't spark when touched. HTH, because I don't know from common negative :).
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I'm trying to think how many times I have used this charging system. I would hate for it to damage my batteries. (I didn't keep records because I thought I was doing the optimal thing, not an experiment.)
I've done the 2x 12v charging, while batteries are connected in series, approx 125 times in the last year. Of those, maybe 90 with the Noco multi-output charger, and 35 using a car 12v hooked to one bat at at time, leave it on till its output meter is under 2amps (ROUGHLY equal charging to the 2 batts, confirmed by voltmeter after surface charge dissipates).
Before last year, I probably did it once a month or something for maybe 3 years, again mostly Noco but not all.
I HAVE had a battery problem, in that
sometimes if I fully charge in the evening, unhook from charger over night, then the next day I get very little power. But I think that was due to a drain and I think I found it. And it never happened if hooked to a charger overnight, which implies that it is not battery damage.
So... do y'all think this is enough to determine that it is ok? Or are my batteries gonna croak next month?
