Very Low OCV on Full Batts???
I've been seeing lower than usual resting ocv this winter, compared to last. Figured it was either wear and tear, too high a charging voltage, or a parasitic draw. So I tried throwing a lower vol...
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Niner, I did top charge them before putting them into hibernation, but no EQ; that was done back in Oct, on two of the batts. Since disconnecting all wiring last week, at first I was kinda surprised to see that the "weaker" (lower SG) batteries are holding higher voltages than the "stronger" (higher SG) batteries. But then again, it shouldn't be any surprise, seeing as that's just how my batts behave.
But overall, the resting ocv's appear to have been on the low side; even after allowing for temps; indicating my batts' self-discharge has most likely increased. And if a noticeable increase in self-discharge is clearly evident at cold temps, I can certainly imagine how the warmer weather is going to effect things. Is self-discharge at an alarming rate? No. But it is something I want to keep an eye on. It appears I may be losing my 'high resting ocv' bragging rights. :) So I'm now trying to figure out if this is indeed the case, or just a result of too low a voltage when top charging cold batts. It's tricky, given so many variables.
But overall, the resting ocv's appear to have been on the low side; even after allowing for temps; indicating my batts' self-discharge has most likely increased. And if a noticeable increase in self-discharge is clearly evident at cold temps, I can certainly imagine how the warmer weather is going to effect things. Is self-discharge at an alarming rate? No. But it is something I want to keep an eye on. It appears I may be losing my 'high resting ocv' bragging rights. :) So I'm now trying to figure out if this is indeed the case, or just a result of too low a voltage when top charging cold batts. It's tricky, given so many variables.
