12-21-2004, 10:33 PM
I use a float charger (harbor freight $15) for my finder battery rather than a trickle. I've been told they don't overcharge (boil) battery which increases its life. I also bought a little charger from walmart for like 20 bucks and it tells you everything and will shut off and monitor the battery and top it off if it loses a charge. I use this for maintaining my atv battery. Either would work for your fishfinder batt. .
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