03-25-2005, 04:44 PM
My fishfinder has a shutoff function which powers it down when it reaches 9.5v. So i don't think its been drained to low. I've been using one of those battery tender chargers to re-charge it. It will fill the battery up to 13.6v and then goes into a "tend" mode where it only starts charging again when the battery drops below a certain voltage. I use this charger for my atv as well and it works great. I can usually get about 6 or 7 hours out of it with a full charge. I am also thinking my fishinder probably sucks quite a bit of juice which can also be the cultprit. Thanks for the input everyone.
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