AGM batteries if discharged?

[cardude01]

So the batteries charged all the way up to 100% according to my Balmar gauge. The house bank was at 18% when I got the the boatyard on GTC.

I’ve been either running the gen or underway with the alternator charging almost 100% of the time, so I’m not sure how quickly they will discharge when I put a strain on them. But the initial judgement is positive IMO.

 

[Gordon J]

Don't mistake state of charge with state of health. A bad battery can be brought to full charge. Your smart gauge lacks the ability to measure health.

Gordon

 

[cardude01]

Yeah I agree. I won’t know until I test them overnight anchored out with a load on them. They are suspect as of now.