How to charge AGM(Optima)/gel batteries.

[projectPONY]

I have 2 that have been sitting in the garage for a least 2 years. I said I was gonna try this a year ago.

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[Trick Pony]

Use a maintainer and you won't need these directions.

This. I've got a Hawker PC680 AGM battery in my Mustang that I've kept on a Battery Tender since '05 and it's still good.