AverageWhiteGuy
Well-Known Member
Agreed. I mentioned this in another thread. When a battery is burdened with a load, it reads low. When you turn off your car, and only a few things are burdening the battery, the voltage will read high.
The only reason the voltage is alot higher when your car is on, is because the alternator is charging the battery, and providing some power as well. Here's some example alternators from earlier Ford Rangers;
https://www.therangerstation.com/tech_library/alternator.shtml
It's important to note, as the wattage of the alternator goes up, the load on your engine will also increase. I'd say leave it alone, till you run into problems. I own a NOCO GB70 (2,000 Amp) Car Battery Jump Starter. Bought it for $160, two years ago during black friday from autozone. (20% off coupon)
I just keep it in my car, once in awhile I usb charge the GB70, to make sure it's good to go. Already helped out 3 neighbors who had dead batteries. When my car battery goes out in my ford, and it's past the 3 yr warranty. I'll probably buy the motorcraft AGM, assuming they continue with a 3 year warranty. Seems ok to me
The only reason the voltage is alot higher when your car is on, is because the alternator is charging the battery, and providing some power as well. Here's some example alternators from earlier Ford Rangers;
https://www.therangerstation.com/tech_library/alternator.shtml
It's important to note, as the wattage of the alternator goes up, the load on your engine will also increase. I'd say leave it alone, till you run into problems. I own a NOCO GB70 (2,000 Amp) Car Battery Jump Starter. Bought it for $160, two years ago during black friday from autozone. (20% off coupon)
I just keep it in my car, once in awhile I usb charge the GB70, to make sure it's good to go. Already helped out 3 neighbors who had dead batteries. When my car battery goes out in my ford, and it's past the 3 yr warranty. I'll probably buy the motorcraft AGM, assuming they continue with a 3 year warranty. Seems ok to me
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