Battery drain

Tiny
MR GRANT
  • MEMBER
  • 2003 OLDSMOBILE ALERO
  • 2.1L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Battery went dead overnight. I trickle charged it over 8 hours trickle charger said it was full. Digital reader had it at 11.25 volts. I checked for a battery drain and it has 1.16 amps. Is that an amount that I have to hunt down or is it possibly a bad battery.
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Saturday, June 13th, 2020 AT 7:03 AM

2 Replies

Tiny
ASEMASTER6371
  • EXPERT
Good morning,

The battery is dead. 11.25 is nothing. The battery needs to be 12.4 to 12.6 for all the systems to come alive.

I attached a guide for you for the battery draining overnight.

https://www.2carpros.com/articles/car-battery-load-test

https://www.2carpros.com/articles/how-to-replace-a-car-battery

https://www.2carpros.com/articles/car-battery-dead-overnight

Roy
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Saturday, June 13th, 2020 AT 7:47 AM
Tiny
DANNY L
  • EXPERT
Hello, I'm Danny.

First thing you should do is have the battery load tested.This will determine if the battery can or will hold a charge. Most auto parts stores will do that for free.Here is a tutorial showing what is involved:

https://www.2carpros.com/articles/car-battery-load-test

The second thing you can do involves a test light.Disconnect the negative battery cable and install the test light between the negative battery clamp and the negative battery terminal.The test light should be illuminated.Certain things like clocks will keep the light illuminated but you can then start pulling fuses out one at a time.When the test light gets noticeably dimmer you will have then found the circuit that is causing the drain.Hope this helps and thanks for using 2CarPros.
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Saturday, June 13th, 2020 AT 7:52 AM

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