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I recently converted my car to the bc racing coilovers and when I got the car back it has the red check battery warning among others. The rear battery is measuring 12.6v with the car off and 14.06v with the car on, so I know the rear one is getting charge.
Measuring the auxillary batter in the engine bay gave 12.4v but didn't increase once the car was started so I'm not sure where to go from there. I would guess it's not getting any charge but the main battery is for some reason.
Any help would be appreciated
Auto shop mechanics usually leave the car doors open for hours while listening to your audio system. Battery is probably just run down. Put a 10 amp charger on it overnight and see how it is the next day.
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