I had a new marine battery put in my sea doo sportster boat. It starts fine now, but when I plug in the maintainer to charge it fully, it stays in the red light area after a day plugged in. Is this normal? I have a battery maintainer on it.
So new batteries need to be charged a bit? I thought they would be ready to plug and play. That is what dealer said. It is an Interstate marine battery.
Try a regular battery charger, charge for a couple hours. Measure the battery voltage with a meter after charger is disconnected. Maybe your battery tender is junk leading up to you original battery failure. A fully charged battery should read well over 12volts
