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Listening to radio w car off and it dying within 15 min

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I have a 2008 civic w 195000. I used to listen to my radio 45min+ before car dying. Now it dies within 10-15 min. I tested the battery, starter and alternator today and all good. I cleaned around the terminals a few weeks ago. Any ideas?

6 Answers
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 Check how much power does your radio get. Even 45 min should not drain the battery. 

@yaser Big amplifier will do it, otherwise no, it shouldn't be killing it that fast.

Thank you for your response. How do i check how much power my radios getting?

Thank you for your response. How do i check how much power my radios getting?

Check the amperage that the radio gets. Use the same procedure to find the parasitic draw in a car to find the amperage draw using the radio fuse.

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Batteries can lose a lot of power in cold weather, flooded cells I have heard can lose as much as half below freezing. Not sure if you are in cold weather?

Also If you are taking shorts trips and running an amp, the battery may not be charging fully.

Could be either, or a combination of the two.

 

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Go to autozone and have the battery LOAD tested.

Agreed, it could be showing higher voltage, but under load it may drop way down. If the battery has been deep cycled, especially numerous times, I would be guessing it has been damaged, at least a good bit.

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What do you mean by dying? Like the radio shuts off? Or the battery dies, and cannot start the engine back up?

The radio goes off like it loses connectiin, battery dies......and then i jump start it w a portablr charger

@tajmirage So you are completely draining your battery multiple times?

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Get the battery load tested. as MountainManJoe indicated. By the way, how old is the battery?  All it takes is one dead cell.

1 yr

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What voltage is your battery getting with the engine idling?  It should be about 14.5 volts.  Did you load test the battery or just measure the voltage with the car off?

I measured the voltage w the car off.....and results showed......Healthy=100%
Charge=98% 12.69V and Internal R=6.40

@tajmirage how long had the car been turned off, and What kind of device was it checked with?

1-2 hrs and i used a topdon artibattery 101

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