Originally Posted by sully75
I have a full charge by 8 am normally.
Sent from my iPhone using Cruisers Sailing Forum
No, you don't, you think you do, but you are not fully charged, only way I know of to determine full charge is by monitoring the amps going into the battery
I have an AGM
bank myself, and even the manufacturer of the batteries will tell you you can't get to a full charge with Solar alone and AGM's will die an early death if you don't fully recharge them at least weekly, and probably equalize monthly, assuming your battery can be equalized.
Even if you had a Kilowatt of Solar, your not getting to 100% full charge, it's not the size of the available charge source, it's the battery acceptance rate and number of hours required, there just isn't enough hours of usable daylight to fully charge an LA battery, so the generator is not for adding more amps so that you can charge the battery faster, it's for extending the charge time by running it either early in the morning or late in the day.
Morning is better as that is when the battery can take the amps that the generator can throw at it, late in the day your trickling it in.
But then you get into the economics of the problem and whether or not your willing to spend the bucks for a generator, store and maintain it, keep fuel
on board for it, listen to the darn thing etc.
It may be that going to Golf cart batteries when your AGM
bank dies, with the idea of replacing them as necessary is more palatable than a generator.
Flooded lead acid batteries are more tolerant to partial state of charge cycling than AGM are and are much less expensive, and the least expensive is a golf cart battery, and they seem to be pretty decent batteries too.