Flat Battery
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Flat Battery
What are the most common reasons for a battery draining in just over a week, in a Big turbo Esco? If I leave it much longer it's almost flat. Enough charge to turn over, but not enough to start. It's the second battery in 3 years, so shouldn't be stuffed. Even tried a solar charger so I don't have to have a mains one hooked up all the time.
#2
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Mine used to do that when i left it at the airport for 9 days at a time. It was the aftermarket mongoose alarm so then i bought a $9 screw type negative battery terminal with a big green knob on it and now when i go away i just unscrew that. Just remember not to leave your car keys in side when you go to connect it back up cos it locks the doors when its reconnected.
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are you leaving it in a garage unlocked?
the central locking motors draw a few hunded milliamps when in the unlocked position.
also another favourite is the cooling fans relay - the big green one next to the battery, if this has gone goosed, it can leave the fans running on low speed and flatten it.
the central locking motors draw a few hunded milliamps when in the unlocked position.
also another favourite is the cooling fans relay - the big green one next to the battery, if this has gone goosed, it can leave the fans running on low speed and flatten it.
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As the alarm has never worked, I doubt it would be that. Do leave it unlocked in the Garage though. Given that my fans, er the cars not mine as I'm not famous, are quite noisy even on low speed, I'd hear if they were on all the time.
Will try locking it and see if it makes a difference. Is there a way to check with just a basic analogue multimeter, any other sources that could be causing it to drain. don't really want to keep disconnecting the battery to keep it charged as then I have to go through the re-learning process for the ECU every time before I drive it. Occasionally twice when it wont rev cleanly whilst driving.
Thanks all for the suggestions.
PS: What did you think of the Great Ocean Road when you were in OZ Dave?
Will try locking it and see if it makes a difference. Is there a way to check with just a basic analogue multimeter, any other sources that could be causing it to drain. don't really want to keep disconnecting the battery to keep it charged as then I have to go through the re-learning process for the ECU every time before I drive it. Occasionally twice when it wont rev cleanly whilst driving.
Thanks all for the suggestions.
PS: What did you think of the Great Ocean Road when you were in OZ Dave?
Last edited by ruffles; 04-06-2008 at 02:02 PM.
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I'm sure someone suggested this before on another thread to disconnecting the earth cable from the battery & putting an Ammeter in line with the battery terminal & Battery earth cable. Make sure the ammeter is set to measure amps & see what it registers. Then trying pulling out the various fuses until you find the one that looks like its drawing the current. It might help track down the problem. Never tried this but it might be worth a go.
Just make sure you don't turn the engine over.
My battery was going flat over a 1 week peroid & it was down to the boot light.
Just make sure you don't turn the engine over.
My battery was going flat over a 1 week peroid & it was down to the boot light.
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I'm sure someone suggested this before on another thread to disconnecting the earth cable from the battery & putting an Ammeter in line with the battery terminal & Battery earth cable. Make sure the ammeter is set to measure amps & see what it registers. Then trying pulling out the various fuses until you find the one that looks like its drawing the current. It might help track down the problem. Never tried this but it might be worth a go.
Just make sure you don't turn the engine over.
My battery was going flat over a 1 week peroid & it was down to the boot light.
Just make sure you don't turn the engine over.
My battery was going flat over a 1 week peroid & it was down to the boot light.
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