Batttery Drain
Thread Starter
Heel & Toe
Joined: Aug 2023
Posts: 15
Likes: 4
From: Mt Juliet, TN
Batttery Drain
2015 Stingray 12k miles. Fourth Corvette, Best so far.
Battery will lose charge if not run in 10 days to two weeks without 'tender' or charger. Garage kept. Battery checks fine. What can I explore to remedy what is causing drain?
Thanks for any comments. Glenn. Mt. Juliet, TN
Battery will lose charge if not run in 10 days to two weeks without 'tender' or charger. Garage kept. Battery checks fine. What can I explore to remedy what is causing drain?
Thanks for any comments. Glenn. Mt. Juliet, TN
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,510
Likes: 4,001
From: Cape Coral, Florida
Do you own a DVOM and know how to use it ??…with the DVOM on the AMP setting disconnect battery negative cable and connect the DVOM leads in series with the battery post and cable to measure your current draw…video below to show voltage drop check method instead of pulling fuses…the battery should be fully charged before testing at 12.66 volts.
Burning Brakes
Joined: Sep 2022
Posts: 1,202
Likes: 569
From: MSP
2015, 12k miles. Alrighty.
Original battery? If so, just replace it, ideally with an AGM like the car should have had from the factory (but didn't, because cost cutting).
If the battery has been replaced in the last few years, and your "battery checks fine" was an actual, meaningful load test performed under the correct conditions to give a real datapoint, then yeah start chasing down your electrical drain with a DVOM.
Original battery? If so, just replace it, ideally with an AGM like the car should have had from the factory (but didn't, because cost cutting).
If the battery has been replaced in the last few years, and your "battery checks fine" was an actual, meaningful load test performed under the correct conditions to give a real datapoint, then yeah start chasing down your electrical drain with a DVOM.
Last edited by squirrelchew; Aug 25, 2023 at 01:38 PM. Reason: adding clarity
