Pluto
Senior Member
My boat has (2) D-8 batteries. I recently replaced one. Now the other one has little puddles of electrlite on top of it. Does that mean i need to replace it too? Thanks for any advice. Still learning the boat.
What type of battery charger are you using? I'm concerned that the puddles are from over charging?
Bill
I got away with replacing one of 2 for a year, "the keeper" tested too well to replace, but yes, usually both at once. It could be charging heaps because it can`t hold a charge.Never replace one battery. the old one draws down the new one.Sd
Would a battery isolator between the batteries let you change them one at a time? I also have 2 8Ds and wonder if this will let them live a little longer.
Thanks FF. About what I thought. As the boat is a smaller craft, there is not too much demand at rest. I turn off everything but the bilge pump when off the boat. I had done the "Touch the cable to the post" thing without any spark action. No big deal as the batteries post at 14 days on end. The concern is the high rate of charge by the alternator under way for what seems a longer period of time than the at dock charging condition indicated the batteries were (are) fully charged vs: when underway.
Al
FlyWright-
Would you confirm or define a smart charger?
Al
Wow, thanks TF for all the good information to my question. Someone asked what type of charger I had. Its a "Professional Mariner Protech 4 Series". Probably original to the 2004 boat. It apparently charges those two D8's and the bow thruster battery.
I have stopped leaving the charger on all the time and the puddles have disappeared. Also a sulfur smell that was in the cabin is gone. I'll see how it goes from here.
Thanks again!