TrailBlazer discharge

Nov 15, 2006 10 Replies

I am having low battery problems. My battery discharge rate is about 7.5 milliamperes after the modules power down. The engine alternator running voltage is



14.2 volts and seems ok. What is the acceptable battery discharge rate at rest on a 2002 LTZ TrailBlazer? Thanks!!


That is fine, at that rate it would take about 6 to 9 months (give or take depending on interally battery leakage) to kill battery. It takes a little power keep ECM and clock current memory wise and then there is wireless remote receiver too. All thing considered 7.5 milamps (or about 1/100 or a watt) it pretty good.

----------------- TheSnoMan.com

Actually more like 1/10 of a Watt (0.09 W at 12.0 V)....but still small.

Your right I was off one decimal place. About 2.2 watt hours a day and a car battery depending on its size will store about 600 to a bit over 1000 watt hours when discharged at a very low rate so 2.2 watts a day is nothing unless you plan to let it sit more than 3 to 6 months at a time a lot without running or being recharged..

----------------- TheSnoMan.com

Not likely. Are you having problem with battery dying?

----------------- TheSnoMan.com

could always get a hydrometer and check the specific gravity of the battery--they're cheap

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scroll to number 12 to answer your original question that started the post.

~:~ MarshMonster ~sips his crown n coke.........wonders what the symptoms are....... oh well.......~ ~:~

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