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Had my 7.4 replaced by an 8.1 a few years back. Ever since getting it back I seem to have a problem with my batteries draining down. Not so much the starting battery but the house battery.
We usually drift with the motor off and use the CD player or radio and the Furuno color CRT. After 4 or 5 trips the battery will loose juice and the depth finder will start to blur and finally shut off. When I start the engine back up eveyrthing works fine so I beleive it's charging correctly. After running the engine for a while I can shut it down and the sounder will work for another 5 minutes and quit. I'm then forced to take the battery out of the boat, charge it back up on my charger and put it back in. I then get another 4 trips and it gives up on me again.
Our round trip out and back to the fishing grounds is probably and hour. I would think this should be more then enough time to charge the batteries back up and like I said I never had a problem before the engine got replaced.
Replaced the batteries several times so it's not that......Checked voltage coming out of alternator and to the batteries and that appears to be fine. Replaced Isolatot just in case.
Im at a loss here.... Had the marina look at it but they can't seem to find out whats wrong.
Any suggestions ??
We usually drift with the motor off and use the CD player or radio and the Furuno color CRT. After 4 or 5 trips the battery will loose juice and the depth finder will start to blur and finally shut off. When I start the engine back up eveyrthing works fine so I beleive it's charging correctly. After running the engine for a while I can shut it down and the sounder will work for another 5 minutes and quit. I'm then forced to take the battery out of the boat, charge it back up on my charger and put it back in. I then get another 4 trips and it gives up on me again.
Our round trip out and back to the fishing grounds is probably and hour. I would think this should be more then enough time to charge the batteries back up and like I said I never had a problem before the engine got replaced.
Replaced the batteries several times so it's not that......Checked voltage coming out of alternator and to the batteries and that appears to be fine. Replaced Isolatot just in case.
Im at a loss here.... Had the marina look at it but they can't seem to find out whats wrong.
Any suggestions ??
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