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Battery Keeps Draining

Tyleratravis

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Tyleratravis New Member

Tyleratravis

Posted
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I have a 05 2500Hd it has the 6.0 in it my battery was dead i replaced it thinking it was bad battery had been years since replacing, few days went by dead again. I have tested the alternator while running getting around 14v can someone please help me this is driving me nuts.

Formulabruce Enthusiast

Formulabruce

Posted
Posted

Ahh, Yup, I have been down this road...

Although it could be a couple things,Both mine ended up being the darn Radio.. yes I said radio.. The radio has its own constant power for memory and other functions, and once isolated was causing a 2 amp drain . The 250 price to fix was not worth it, so I bought a Sony Double Dinn with blue tooth, and USB and got a wiring adapter and Im good now

dewfpo Senior Enthusiast

dewfpo

Posted
Posted

DIsconnect one lead from the battery and hook up a DVOM and set it to milliamps. Check the readout. It should be less than 0.5 milliamps. If it reads more, then start pulling fuses out one at a time to find the circuit that has the draw. Then you can isolate the circuit and then begin testing each component in the circuit.

 

DEWFPO

slj2008 Senior Enthusiast

slj2008

Posted
Posted

check your cables (clean & tight) , UNPLUG any thing - cell phone chargers, amp , flashlight, power converter . meter & test light. GOOD LUCK

Grumpy Tooch Enthusiast

Grumpy Tooch

Posted
Posted

OMG, thats so funny this just happened to me...lol

I have never had problem with battery and it should be fine. I was sick for about week and had to jump the truck the other day. I was very confused because i know the battery to be fine.

But now after reading this, I did notice the memory of stations are ALWAYS there no matter what.

couple days later and dead again. That draw should not be enough to kill battery after sitting for week...no?

Formulabruce Enthusiast

Formulabruce

Posted
Posted

Mine would go about 4 days in winter, and 6 in summer with the drain problem

die hard Enthusiast

die hard

Posted
Posted

My battery was also draining down over night after disconnecting different things at night turned out was my alternator was draining power has happened twice over 15 years I have owned my truck with two diffenerent alternators ..try diconecting big wire on alternator see if battery is drains down .good luck

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