# Car battery problem

I installed a new battery in my daughters car a couple of weeks ago. After installation of battery, the digital clock display on radio stays on all the time. This wouldn't be a big deal but the car needed a jump start the other morning. I'm going to check the alternator next for voltage output, but just wondering if there is something else draining the battery.

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• Anonymous Mar 26, 2009

my battery dies each night too on my lumina

• Anonymous Mar 16, 2014

Drain on batteries when it sets for a couple days it will drain the batts.I installed two new batteries two weeks ago,the clock on the radio always stays on.Would that drain two 1000cca batteries in three to five days?

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The alternator test will likely indicate a charging problem from the alternator that is not keeping the battery charged up.
Regardless of the alternator test, it would be best to do an electrical draw test to determine whether there is an excess drain on the battery. This can be done with an ammeter between the positive terminal and the positive battery post. This test is done with key off, all accessories off, no lights on, etc. There will be a small draw on the battery in all newer vehicles, but it should be in the order of up to 50 milliamps. If you are getting more than 200 milliamps of current draw then there is a problem with an electrical system that will drain the battery over a period of days or weeks. Once you know this is true, the electrical systems can be methodically tested.

Posted on Jan 19, 2009

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
Goodluck!

Posted on Jan 02, 2017

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## Related Questions:

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sounds like perhaps it is time to purchase a newer car and let that one find a new home . our daughter had a problem like this and after much expense was told to unhook every thing electrical she could . ended up being the radio/stereo in the trunk.

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### Digital clock on radio is displayed all the time

Those Luminas all did that. I ran a taxi fleet for awhile that used Luminas and they all had that clock displayed 24/7. It didn't cause problems though, unless we left other things on, or our battery connections were less than perfect. The side post battery was more problem than you might think. Good luck. TT

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