I picked up a used optima blue top the other week, that I noticed would hold a constant 9V or so. I had it charged for about 20hrs at an Autozone(even passed a load test while at AZ). I even had the guy acknowledge that there was a different charging method for the gel cell battery... Just to be sure..
So, then it sat on the garage floor for about a week since minor custom work was needed to hook it up.. Once we got that done, I've noticed that it won't crank the engine over right away. It hesitates, has a few slow cranks, then fires up the motor. The guages shake for about 5 seconds to indicate that the battery is weak. The more I drive it, the more I notice that the battery seems fine(starts ok, and the 'weak' indicator doesn't come on).
Just a day or two ago the battery started to drop back down while the car sat. So i borrowed a CarQuest battery charger that has a setting for gel batteries. I hooked it up to charge at 10amps (optima.com says 10amp max 6-12 approx), on the gel battery setting.
I've charged it now a few times for about 6hrs. I have yet to notice a change in the batteries ability to hold a normal charge. This morning I tried it for 6hrs or so on a 2amp charge.. Nothing.. So now it's back on the 10amp charge.
The indicator light on the charger is yellow while charging, then alternates flashing between yellow and green as the battery nears full charge. I always see it flashing yellow/green, but I have yet to see the battery be near a full charge.
Any ideas? Why can't I get this blue top to accept a full charge?
-Jason
So, then it sat on the garage floor for about a week since minor custom work was needed to hook it up.. Once we got that done, I've noticed that it won't crank the engine over right away. It hesitates, has a few slow cranks, then fires up the motor. The guages shake for about 5 seconds to indicate that the battery is weak. The more I drive it, the more I notice that the battery seems fine(starts ok, and the 'weak' indicator doesn't come on).
Just a day or two ago the battery started to drop back down while the car sat. So i borrowed a CarQuest battery charger that has a setting for gel batteries. I hooked it up to charge at 10amps (optima.com says 10amp max 6-12 approx), on the gel battery setting.
I've charged it now a few times for about 6hrs. I have yet to notice a change in the batteries ability to hold a normal charge. This morning I tried it for 6hrs or so on a 2amp charge.. Nothing.. So now it's back on the 10amp charge.
The indicator light on the charger is yellow while charging, then alternates flashing between yellow and green as the battery nears full charge. I always see it flashing yellow/green, but I have yet to see the battery be near a full charge.
Any ideas? Why can't I get this blue top to accept a full charge?
-Jason