Hi All,
I've been offline for a bit-sorry for the delay in responding. As you have all pointed out, I neglected to mention the Morningstar TriStar 30
MPPT controller-sorry about that ommission.
Rethinking my post, the batteries likely do not get discharged to 50% more like 25%. I don't have a gauge yet, but the the biggest draw is the fridge Well insulated-draws around 8 Amps -80-100 amps from sunset to sunrise. Everything else is low draw LED fixtures. Peak solar input is around 15 Amps so I estimate I'm adding about what I draw out-say 7 amps/hr over a 12 hours. Usually arount 10:00 PM the bank was at 12.4-12.6 so I don't think there getting crushed, Nor do I think they were ever in float except when the
engine was spinning the 125Amp
alternator.
So its a mixed bag, but I know T105's can take a lot of abuse. They are 6V wired in series and paralleled to yield a 450A bank. I just don't want to ruin them with an inadequate winter charging regimen. The battery charger/inverter is just a device for winter charging and equalizing.
My question was less about are my batteries trashed by undercharging -I don't believe they are-my question is about the worthiness of my charger as a winter charging mechanism given its generic non-adjustable charging profile.
The Trojans want Bulk 14.82 /the charger produces 14.3 Bulk
The Trojans want to Float at 13.5/the charge produces 13.4
The Trojans want to Equalize at 16.2/the charger equalizes at 16.3
The difference in the Bulk rate is 0.52V That seems like a lot to this non-marine electrician. Is this true?
The Float and
Equalization differences are only off by 0.10. In my limited understanding 0.10 Volts is perhaps significant.
Are these differences in charge rates problematic? Do they justify
shopping around for a new charger/inverter? The batteries are two years old the Heart Interface Freedom 10 charger came with the
boat.
All
advice and thoughts appreciated.
Jim