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Charging a Deep-Cycle Marine Battery; Is it dead?


k6whp
 

Gents,

In advance of FD, I "inherited" a deep-cycle marine/RV battery and wondring if it's met its maker. Ostensibly in good condition (so sayeth the donor), it's been on an automobile battery charger for three days drawing about 5-6 amps with a terminal voltage of 9 volts.

I did the research but a lot of the info is "buy our miracle charger" or "revitalize your dead batteries with our wonder product", etc.

Any verdict on this; a few more days?
--
William, K6WHP
"Cheer up, things could get worse..so I cheered up and, sure enough, things got worse!"

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