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12 volt charge on 1 particular battery. - Walleye Message Central
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  #1  
Old 09-30-2018, 07:49 AM
kman kman is offline
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Default 12 volt charge on 1 particular battery.

36 volt system, and then starting battery. Fished about 8 hours yesterday with new Ulterra (luv it) and at the end of the day "once again" I'm have 1 deep cell battery that reads much lower than the other two.

Main starting battery, 12.54 [email protected]%
1 deep cycle at [email protected]%
Another deep cycle at [email protected]%
and then my low battery at 12.12 for only 55%

So, any way to 'clean' this bad boy up?
How does a 36 volt system work? all batteries support each other, or is the low one going to be the one that gives me grief?

Understand my concern is not only fishing time but the Ulterra always requires enough voltage to stow and deploy..

Even with 2 battery's at 85%, my Ulterra Ipilot remote showed about half charge left just before I left the water, hence the thread here.
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  #2  
Old 09-30-2018, 08:18 AM
rickn rickn is offline
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How old are the batteries?
The bad battery will draw the good ones down to all the same level.
My experience with my ulterra, it will quit running due to low voltage, and still have enough volts to stow.
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Old 09-30-2018, 08:22 AM
kman kman is offline
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battery's are likely 3 maybe 4 years old. I could check the date code In a minute.
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Old 09-30-2018, 08:33 AM
kman kman is offline
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July 2016
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  #5  
Old 09-30-2018, 08:53 AM
rickn rickn is offline
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3 bank charger? Maybe switch charger leads around to be sure all are working, check water level. Battery can show volts, but not have amps. If it were mine, I'd replace all the trolling batteries next spring.
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Old 09-30-2018, 11:09 AM
kman kman is offline
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Brand new 4 bank Dual Pro charger. Could try switch leads though just for curiosity.
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Old 09-30-2018, 01:45 PM
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Farmerj Farmerj is offline
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Quote:
Originally Posted by rickn View Post
3 bank charger? Maybe switch charger leads around to be sure all are working, check water level. Battery can show volts, but not have amps. If it were mine, I'd replace all the trolling batteries next spring.
This is where I would be
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Old 09-30-2018, 01:58 PM
kman kman is offline
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Quote:
Originally Posted by Farmerj View Post
This is where I would be
With all due respect guys, 2 of the 3 battery's show 85% after 8 hours of light to moderate use that day, battery's are just over 2 years old.
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Old 09-30-2018, 03:02 PM
Marty59 Marty59 is offline
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How is the water level?

Marty
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Old 09-30-2018, 03:17 PM
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Quote:
Originally Posted by kman View Post
With all due respect guys, 2 of the 3 battery's show 85% after 8 hours of light to moderate use that day, battery's are just over 2 years old.
With a multiple battery system, you replace them all as a set or you'll be chasing issues constantly.
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