Thread: Onboard charger

Chose the Minnkota 315 d on Ebay new for just under 130 bucks and Minnkota offers a 30 buck rebate !

Originally Posted by DRPEPPER

I don't want to hijack the thread with another question. But, sense it is CA, so what. BRM, your last post has me thinking. My battery is not a year old. It didn't perform right last trip. I remember it charged "funny" too. I checked the water levels and found one cell had some kind of white stuff in it and it is dry. Could it be from over charging as you say? It is a blem battery and the blemish could have caused a leak in the casing. That is my thinking anywho. DP

I've had a few that leaked through a hole in the case. Most had been dropped hard or a screw in the tray rubbed through. If it leaked at the warehouse I'm sure they wouldn't have sent then out. Over charging can boil the battery and causes them to loose water/acid, but you can usually see that around the caps. Batteries also get coated with (don't remember the term) crud in the plates. Some chargers can restore or de crud them. I haven't had much luck with that tho. Don't know about the white stuff in that cell you mentioned, but might be that crud stuff.

Originally Posted by NIMROD

Chose the Minnkota 315 d on Ebay new for just under 130 bucks and Minnkota offers a 30 buck rebate !

That's a great price in that charger.

Originally Posted by BigRiverMarine

I've had a few that leaked through a hole in the case. Most had been dropped hard or a screw in the tray rubbed through. If it leaked at the warehouse I'm sure they wouldn't have sent then out. Over charging can boil the battery and causes them to loose water/acid, but you can usually see that around the caps. Batteries also get coated with (don't remember the term) crud in the plates. Some chargers can restore or de crud them. I haven't had much luck with that tho. Don't know about the white stuff in that cell you mentioned, but might be that crud stuff.

Sulfate is the term your looking for.
Batteries sulfate typically when they are not recharged directly after being discharged.
It is a buildup on the plates.

Originally Posted by Mac Daddy

I have 2 Dual Pro Chargers, also called Pro Series chargers, for 4 batteries. They have been awesome. This is the brand that comes with most new major brand boat manufacturers, Stratos and Ranger I know for sure. One of mine is 11 years old and never a problem, and as I understand it they are also repairable. My best friend has had 2 Minn Kota 3 bank chargers, both of them have gone bad on one of the 3 banks. Minn Kota didn't do anything to help because they were out of warranty by a few months, and they aren't repairable. The Dual Pro Chargers are very heavy duty, I don't know what they weigh exactly but they are certainly not light weight.

I think so also there great chargers! Its all we use on towboats. I like the 3 bank 15 amp especially for really big batteries. They recommend at least 15amp to charge the bigger batteries.
Doesn't dual pro chargers charge each battery seperate??

Originally Posted by JigginPoleJoe

Sulfate is the term your looking for.
Batteries sulfate typically when they are not recharged directly after being discharged.
It is a buildup on the plates.

Thx. That's it!!!