Jaber
Full Access Member
I have Scan Gauge II installed and noticed the "VOLTAGE" reading has been dipping into the low 13's. Didn't think much of it, as I've been told this is ok. On hot days, it stays around 13.2-5 idle and 13.8-14.x while driving.
But yesterday, with the AC on and the Jeep idle, I noticed it read 12.5-12.9 constantly. Once I revved the engine or accelerated a bit, jumped up to 13.5-9, but then back down to mid 12's. It was night time, so I noticed my lights were dimmer in idle, once I revved it, lights got a bit brighter.
I think the battery is approx 4-5 years old, judging by the date code on it, I was going to get a replacement this summer, along with the belt before winter. But I'm thinking of replacing it sooner.
Should I worry about the alternator at all? Or is this behavior a sign of the battery ready to go out. Or maybe I'm worrying for nothing :smokin:
Jeep starts up strong, never needed a jump. I have no aux lights or anything added that could be sucking up power.
But yesterday, with the AC on and the Jeep idle, I noticed it read 12.5-12.9 constantly. Once I revved the engine or accelerated a bit, jumped up to 13.5-9, but then back down to mid 12's. It was night time, so I noticed my lights were dimmer in idle, once I revved it, lights got a bit brighter.
I think the battery is approx 4-5 years old, judging by the date code on it, I was going to get a replacement this summer, along with the belt before winter. But I'm thinking of replacing it sooner.
Should I worry about the alternator at all? Or is this behavior a sign of the battery ready to go out. Or maybe I'm worrying for nothing :smokin:
Jeep starts up strong, never needed a jump. I have no aux lights or anything added that could be sucking up power.