Dead Batt Within Two Days.

[gazcallyt]

This is a little problem I am having with my ladies astra, if we leave it standing for two days the batt is dead, had the batt load tested which passed, checked the drain on the batt with the alarm on and disconnected, hardly any drain on the batt at all, its charging fine off the alternator, could something be shorting to earth, but if so wouldn't that show when I'm looking at the drain on the batt ??

Cheers

Gaz.

[Stupink]

How are you testing the drain on batt?
Also don't believe the load testing will mean the battery is ok.. had many faulty batterys pass "ok" before..

Has to be a duff batt or a pretty big drain for only 2 days... If you have another batt to swap over for a few days to try give that a go to be sure.

[gazcallyt]

Stu,

Had a multimeter wired inline on the positive side, and was looking at the current drain with various things turned on and off, there is very little drain on the batt, nowhere near enough to drain it within two days.
Haven't got a spare batt to test, probably just swap it out for another its still under warranty, and if the replacement still has the same symptoms I will worry about it then.

Cheers

Gaz.

[Stupink]

Well an inline multimeter on amp can't really lie! so if you left it inline for a while and saw no deviation with the car as it is when its locked up then yeah, i'd say its pretty safe bet to swap the batt out. as you say, worry about it after that if its still there.. means theres an intermitant drain/charging prob.

[Tattooman]

mine will flatten after two days for sure.i heard the average drain is 35ma? my drain is around the 350ma mark!