Onboard Battery Charger

duttonrd

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Sep 8, 2024
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I just put in 2 new deep cycle batteries for my trolling motor. I plugged in the onboard charger to ensure the batteries are fully charged. One bank is green the other blinking green/orange. Can someone tell me what the problem is? I've checked the connections twice and they are correct.
 

alldodge

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Don't know which it is so looking at the 10A 2 bank manual, it could be the charger or the Battery. Swap the leads between the Bats and see if it starts flashing on the other one

Manual
 

duttonrd

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Don't know which it is so looking at the 10A 2 bank manual, it could be the charger or the Battery. Swap the leads between the Bats and see if it starts flashing on the other one

Manual
I assume you mean the 2 sets of leads from the charger to each battery right?
 

duttonrd

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OK I'll try that and get back with you later. Again thanks alldodge for your help.
Well I plugged the charger back in to make sure I knew which bank was flashing green/orange before I switched the leads. Now both banks are solid green. I also tested both new batteries and they are both around 13 volts and around 12 with a load test. So if I have the same problem again I think I can assume it's the charger?
 

duttonrd

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Sep 8, 2024
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Not 100%, could be either. Most likely it's the charger, but swapping leads can verify
Ok I will do that if this happens again. As I said I just bought the batteries and they have a 2 year warranty so I'm covered there. If it turns out to be the charger I will have to have someone change it out sad I'm sure I can't do that. Thanks again for your help and the welcome to the forum.
 

T/O

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Mar 6, 2017
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Not sure about your charger but my dad had a charger that blinked green and red when it was 80% charged
 

JASinIL2006

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Also, you'll want to make sure that the battery posts where the charger leads are connected are shiny clean. You might just be getting a poor connection.
 

alldodge

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^^agree
I should have mentioned that just because it's flashing, might not be an actual problem with charging
 

cyclops222

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Mar 21, 2024
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Most chargers will now show amount of power with solid green dots.
Then show flashing light for the balance to reach 100 %.
 
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