Maxima Battery goes dead.

[papi62596]

My aunt is having trouble with her '95 Maxima. Everytime she lets the car sit a few days the battery goes dead. She's replaced the battery twice because the guy at the auto parts store told her to. Even a new battery goes dead after she does not run the car a few days. She said that they checked her alternator and said is was good. Could it still be bad even though it checked out good? If she starts it every day then everything seems fine. Any help would be great.

[Nahkapohjola]

Check out leak current; has to be less than 0.05Amps.

HowTo: Buy 10$ gauge from 'RadioShack', ask how to measure amps reading. Disconnect one (any) batt cable, put probes between cableconnector and batt terminal, read your gauge...

To pinpoint faulty circuit, pull/insert fuse after fuse while measuring - until your cause for excess current draw is found. The source can be any malfuctionin circuit, pinched wire, radio... constantly drawing small current.

Batt capacity 60Ah (amperes per hour) can be calculated like 1 x 2.
- One Amp leak will drain FULL battery (totally dead) in sixty hours.
- Half Ampere leak will drain badly charged battery (into nostart condition) in just 24 hours
- Just one trunk light bulb draws (test it) around ½ Amp

There are myriad possibilities; the cause may also be dirt in here:
see all pages http://www.cardomain.com/ride/748507/23