Originally Posted by simonpickard
I've got a battery monitor ordered so will give more info when that is wired in.
So are you saying that with solar I should be seeing the batteries up to 14.4v also?
I never see this. Once they get to 13.7ish it flips over to float mode.
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I am not sure of the manufacturer of your battery and what they recommend - Here is the page from Lifeline batteries.
Lifeline AGM Batteries Charging Procedure
Here is what they say about 3 stage chargers -
3 Stage Chargers
Bulk 14.2-14.4 volts Acceptance 14.2-14.4 volts Float 13.2-13.3 volts
I do not know what the options are for your solar controller in terms of adjustability but...
Your batteries can take around 14.4 volts in bulk phase - if you panels
can deliver it.
You've said the controller does not stay in acceptance very long, if at all.
You've said that the morning voltage is 12.6 which (a lot of factors dependent - temps, resting state etc.) but fundamentally indicates a decent state of charge - maybe over 70%
The voltage of 13.6 may be a little high for float voltage but I don't think there is any real worry here. We know the charger
is cycling through stages but we still aren't sure if the batteries are reaching a full charge.
Don't worry about it for now and get the gauge hooked up.
I guess the question is what are you seeing in bulk stage?