Re: AGM Battery Upgrade and Charger
Both AGM and Gel batteries have very low self-discharge rates. 3% per month would be the very highest and you can experience as low as 1%. 2% is a safe bet.
Flooded batteries, I believe, self discharge at a rate well above 10% per month.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.