Thread: Battery Drain

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  1. #1 Battery Drain 
    Former GP Owner Chadgervais's Avatar
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    Greetings

    I have a new 800cca Autocraft battery in my car purchased in November. How long can I run the radio with the engine off? Also, would it cause a serious drain to keep my GPS plugged in full time? Of course it would be off, but still drawing current to keep the GPS unit's battery topped off.

    I see on the battery label "Reserve Capacity 120 minutes". I assume that means the battery could keep the engine running for 120 minutes should the alternator fail completely?

    Thanks.
    FORMER GRAND PRIX OWNER- NO LONGER ACTIVE ON GRANPRIXFORUMS.NET
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  2. #2 Re: Battery Drain 
    Moderator dsmuts's Avatar
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    Your gps is draining your battery. Unplug it when you're not using it.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
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  3. #3 Re: Battery Drain 
    I live here. 02NavyBlue's Avatar
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    "Reserve capacity is the number of minutes a battery can maintain a useful voltage under a 25 ampere discharge." I would also suggest removing the charger cord for the GPS when you don't need it. Or plug it into an outlet that turns off when the key is removed. My friend has a GPS wired in permanently, and his battery goes dead after a week.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
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  4. #4 Re: Battery Drain 
    Killa Bee Scottydoggs's Avatar
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    its best to always unplug stuff. a left on light can kill a battery over night most of the time as well.

    oh, and even if you turn it off, but leave it plugged in, if the light is still on on the charger part, its using power still.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  5. #5 Re: Battery Drain 
    Former GP Owner Chadgervais's Avatar
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    Quote Originally Posted by 02NavyBlue View Post
    Or plug it into an outlet that turns off when the key is removed. My friend has a GPS wired in permanently, and his battery goes dead after a week.
    Is there such an outlet on the '04? The times I have left a phone charger plugged in, I come back next morning and its green indicator light is still on. Also, I NEVER go a week without using my car. Since I have owned it, I have driven it every single day, no exceptions.
    FORMER GRAND PRIX OWNER- NO LONGER ACTIVE ON GRANPRIXFORUMS.NET
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  6. #6 Re: Battery Drain 
    Killa Bee Scottydoggs's Avatar
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    you can re wire the outlet to power off when the car is turned off, you just need a new power wire to the socket. its already got a ground wire there.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #7 Re: Battery Drain 
    I live here. 02NavyBlue's Avatar
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    Yeah I just found out both of my outlets stay on with the key off. I must be used to how dodge does it.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
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