Forum Discussion
BFL13
Feb 25, 2017Explorer II
JRRNeiklot wrote:
I have my panels hooked up now. When I turn the solar on, I'm getting 20 amps in, then it slowly drops down to around 1.8 amps. Currently, it's sitting at 14.5 volts and 95% capacity. Is this normal?
Thanks.
It depends on just how really full you had the batteries before you set up the Trimetric and started the AH counter.
Then also it depends on whether they are a bit sulfated with less capacity at true full than as rated. (could be after after all this time without perhaps proper charging?) If so, then you might have the rated 360 AH entered as the full amount, but the batts are actually as full of AHs as they can get now, but the Tri thinks they still have a ways to go.
IMO the batts should be thoroughly charged up and equalized until SG is as high as you can get it then stops getting higher with the equalizing. You can do that with the solar on a good sunny day after getting them like they are now--but disconnect from rig's 12v system going over 15.4 volts to that Trojan 16.2v E spec)
If the SG gets to say 1.285 or so, then you could set the Tri full AH at 360. If you can't get the SG up to Trojan spec for full, then IMO you have "permanent sulfation" so live with that reduced capacity and set the full AH figure lower based on the SG it did get to.
Then the Tri will say 100% closer to when the batts are really as full as they can get in their actual condition.
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