12V/24V voltage range for batteries

[Shorelunch]

I have two, two year old batteries running 24v for an 80 lb thrust Terrova. A month or so ago the trolling motor was running "funny" so I checked the batteries and there was corrosion on one of them from water seeping through the rod locker (1900 Pro-V). So I thoroughly cleaned the battery and connection terminals, put on some of that paint protectant and covered the terminals with the rubber covers.

I ran the batteries/trolling motor dead this past weekend fishing, so out of curiosity, I put a voltage meter to both of them. After about 12 hours on the charger, the battery that had the corrosion is .10 less than the other battery. I turned the trolling motor on and while running, the one battery was at 12.86 and the other at 12.96. Is this enough of a difference to re-investigate?

[PierBridge]

You need 2 new battery's the numbers must be exactly the same...

Just kidding you are good to go!

[CAMAN]

I'd get them both load tested just to make sure they are both good, but that difference shouldn't be a problem as long as both batts are healthy.

[Shorelunch]

I have two, two year old batteries running 24v for an 80 lb thrust Terrova. A month or so ago the trolling motor was running "funny" so I checked the batteries and there was corrosion on one of them from water seeping through the rod locker (1900 Pro-V). So I thoroughly cleaned the battery and connection terminals, put on some of that paint protectant and covered the terminals with the rubber covers.

I ran the batteries/trolling motor dead this past weekend fishing, so out of curiosity, I put a voltage meter to both of them. After about 12 hours on the charger, the battery that had the corrosion is .10 less than the other battery. I turned the trolling motor on and while running, the one battery was at 12.86 and the other at 12.96. Is this enough of a difference to re-investigate?

They're 12.93 and 12.98 when trolling motor is off, if it matters.

[jeffreyd]

the numbers may not be the same depending on where exactly you checked the batteries and if there was any load or draw on the one. If they were mine, i would take them out, find the water leak, have the batteries load tested. A fully charged battery will be 12.66 volts per the interstate battery manual. 2.10 volts per cell x 6. Good luck