Im gonna run this scenario past you guys.
Battery as of 3 days ago was "Strong"- it turned the starter right over and the lights were bright even without car running. Scan tool last time I had it hooked up showed a solid 12.65 volts to computer and about 14.4 volts running.
I was giving the exterior a spay ceramic coating and a quick interior clean 1.5 hours tops - but I had key in acc position with radio playing a reasonable volume maybe 10. Something I have done many times before and sometimes much longer and the car always started without the slightest hint of a slow down..
This time though went to start the car to and it just clicked. interior LEDs were even dim. Got a jump and drove the car for 30 mins to charge it back up and you get the picture - I turned the car off and the battery acted like it did not accept a single volt of a charge. I then decided to fill up the battery acid with distilled water they were low but not dry then popped the battery on a 1.25A charger for 17 hours. The next morning charger read 100% I thought great problem solved but when I started the car the battery almost could not turn the engine over and even the radio and AVG mpg reset from lack of juice. Put it back on charger and it read about 10%. proceeded to leave it on charge for another 17 ish hours until this AM and currently reads at 70% 13.6 Volts.
But I have a couple questions.
By adding the distilled water is that affecting how long it takes to charge? Would you try and keep charging it or just replace it? I don't know how old it is but its a 700 CCA 850 peak battery. Alternator is putting out strong volts when running, I checked all grounds are solid wires and connectors all look great. If it makes any difference its a EXIDE Classic 124RC
Battery as of 3 days ago was "Strong"- it turned the starter right over and the lights were bright even without car running. Scan tool last time I had it hooked up showed a solid 12.65 volts to computer and about 14.4 volts running.
I was giving the exterior a spay ceramic coating and a quick interior clean 1.5 hours tops - but I had key in acc position with radio playing a reasonable volume maybe 10. Something I have done many times before and sometimes much longer and the car always started without the slightest hint of a slow down..
This time though went to start the car to and it just clicked. interior LEDs were even dim. Got a jump and drove the car for 30 mins to charge it back up and you get the picture - I turned the car off and the battery acted like it did not accept a single volt of a charge. I then decided to fill up the battery acid with distilled water they were low but not dry then popped the battery on a 1.25A charger for 17 hours. The next morning charger read 100% I thought great problem solved but when I started the car the battery almost could not turn the engine over and even the radio and AVG mpg reset from lack of juice. Put it back on charger and it read about 10%. proceeded to leave it on charge for another 17 ish hours until this AM and currently reads at 70% 13.6 Volts.
But I have a couple questions.
By adding the distilled water is that affecting how long it takes to charge? Would you try and keep charging it or just replace it? I don't know how old it is but its a 700 CCA 850 peak battery. Alternator is putting out strong volts when running, I checked all grounds are solid wires and connectors all look great. If it makes any difference its a EXIDE Classic 124RC