Uneven Battery drain

[Chad Mitchell]

I am running a 12/24V trolling motor. I leave it on 24V all the time, however yesterday during a tournament I noticed that my TM seemed sluggish after a while. I checked the charges on the two batteries and one showed no juice while the other showed a bout a third. Is this normal? Are the battries not charging even (left on the onboard charger all the time), or is one of the batteries starting to go bad?

 

[David Jordan]

xheck the water level in each battery

 

[Thomas Macaluso]

What type of charger do you have? The resaon is that a number of posts ago there was a simmilar question posted by one of the members. I had a problem with the motorguide charger on my 929 one bank showed full charge while the other was about 2/3 .After replacing one battery and still having the same problem I decided that the charger was the problem . Try switching the batteries if the "bad" battery now gets a full charge and the "good" battery doesn't my money would be on the charger .

 

[Staci Matheis]

Technically speaking, the moment you put the batteries in your boat they start to go downhill.....



One battery is stronger than the other. It is not necessarily "bad" yet. Put a charge on it and make sure it is putting out full voltage - actually 13.2 volts if I remember correctly. You can also take it to a battery dealer and have them "load test" it to see just how strong/weak it may be.



me!