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Battery Drain Conundrum
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Topic author - Scurvy Dog
- Posts: 7
- Joined: September 4th, 2016, 10:39 pm
- Vessel Info: 2000 Model 326 Aft Cabin
- Location: Long Beach Island, NJ
- Has thanked: 12 times
Battery Drain Conundrum
Returning several days later my batteries are drained. The mechanic took a reading, one battery was very weak, the second completely drained. He replaced the dead battery and we were off and running. For only about a week or so. I discovered this past Sunday my batteries are dead again. This time I turned on the charger for a couple of days, but no luck, they are still dead. What am I doing wrong?
- bud37
- Admiral
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Re: Battery Drain Conundrum
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- CYO Supporter
- Posts: 2290
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
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Re: Battery Drain Conundrum
As Bud says above, start with the fridge. It will make batteries dead pretty quickly. If you want to leave it on, shut off the 12 volt breaker to it, then even if you loose shore power it wont drain your batteries. I don't keep perishable items in the fridge when we are away from the boat. I don't want to come back to bearded cheese and such.
- g36
- Admiral
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- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
- Location: Soddy Daisy TN.
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Re: Battery Drain Conundrum
Crusader xli
The Black Pearl
Soddy Daisy Tn.
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Topic author - Scurvy Dog
- Posts: 7
- Joined: September 4th, 2016, 10:39 pm
- Vessel Info: 2000 Model 326 Aft Cabin
- Location: Long Beach Island, NJ
- Has thanked: 12 times
Re: Battery Drain Conundrum
Thanks . .
- bud37
- Admiral
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Re: Battery Drain Conundrum
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- CYO Supporter
- Posts: 5803
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
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Re: Battery Drain Conundrum
flag400 wrote:Source of the post....The marina mechanic.....advised not to leave the battery charger on while it's docked on shore power for days at a time......
I would understand this logic if it is an older ferroresonant charger as they are notorious for boiling batteries, however the recommendation should not be to shut it off while you're away, it should be to have it replaced with a new tech smart charger so it won't boil the batteries. Leaving it off in your absence means nothing is keeping them charged up if something goes wrong such as springing a leak, and the only thing preventing you from sinking are bilge pumps that are relying on a charger to maintain power until someone notices there's something wrong.
This shouldn't be that hard for a tech to figure out!
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Topic author - Scurvy Dog
- Posts: 7
- Joined: September 4th, 2016, 10:39 pm
- Vessel Info: 2000 Model 326 Aft Cabin
- Location: Long Beach Island, NJ
- Has thanked: 12 times
Re: Battery Drain Conundrum
I used a portable starter and was able to get the port side engine running. When I tried to crank the starboard, the port engine shut down.
So, the fridge is off, everything on the panel is shut down, except for Shore One, the three bilge pumps and the battery charger. I will give it a day or so to charge before going back to check on it . .
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- CYO Supporter
- Posts: 2290
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
- Has thanked: 313 times
- Been thanked: 581 times
Re: Battery Drain Conundrum
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Topic author - Scurvy Dog
- Posts: 7
- Joined: September 4th, 2016, 10:39 pm
- Vessel Info: 2000 Model 326 Aft Cabin
- Location: Long Beach Island, NJ
- Has thanked: 12 times
Re: Battery Drain Conundrum
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