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Old 10-12-2019, 08:25 PM   #4
cjd
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Quote:
Originally Posted by Busybee View Post
Is it possible that a brand new cars battery got like that with 12K miles in 6 months ?
Thats scary!

Now I started checking regularly. While the ignition was on and the engine running I measured 14.3v (multimeter). I’m in addition I did a 30 + 30 min drive where I had 2 hours ignition off in between and parked my car and immediately measured it again it was 12.55. Will see how long it will take to turn off my parking module due to voltage drop below 12v.


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Possible, sure. My guess is you're just expecting too much from it. But check the current draw (need to be able to measure mA... hopefully) to get a better idea.

It's easy to abuse the heck out of a battery, draining it low consistently and never getting it a real charge - my wife used to do that till I finally got her a battery tender... ~2-3mi round trip at a time, no more... killed a battery that way.
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