Car Battery
Posted: February 26th, 2010 | Author: admin | Filed under: Renewable Energy | Tags: battery, car, cars, energy, technology |Car Battery
What would cause a car battery to gradually discharge over 2-3 days?
Basically I can always start the engine using my portable battery booster, and the battery does recharge as I drive my car since I can restart the engine normally after a short while (depending on how much I drove). However the battery does gradually discharge, and I must use the booster again if I wait more than 3-4 days.
Would this be a battery problem, or something else like the alternator (although the battery does recharge, and the car runs well once boosted)?
Thank you.
This is most likely one of two things: either the battery is failing (how old is it?), or you have something that’s drawing off of it over that time, maybe a trunk light or glovebox light, something like that. As batteries age, their ability to hold a charge declines.
Based on your description, it’s not the alternator, it provides power to run the car and charge the battery, and it sounds like it’s doing both of those things.
If the battery is a few years old, I’d replace it and go from there.
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