security systems
Submitted: Sunday, Jun 12, 2011 at 23:40
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Member - Desert Storm (QLD)
My starting battery has gone flat twice now. I have taken it to an auto electrician to
check things out, and he cant see what can be drawing power when it is parked up for a week or so.
I have heard that some security systems can drain your battery if you dont lock up the vehicle with the remote. Can this be true?
Here is the latest symptoms I have. My wife went to start the car, and a grinding sound was made. (starter motor?) but then my son jumped the aux battery to the main, (Red arc system) and it started no problem. when they got to their destination, my son disconnected the aux battery and it started off the main battery. prior to this episode, the car had been sitting for a week with the security system un-locked.
any feed back is appreciated.
PS my son put the mulimeter on both batteries and the main was 12.06 and the aux was 12.88.
John
Reply By: MEMBER - Darian, SA - Monday, Jun 13, 2011 at 09:56
Monday, Jun 13, 2011 at 09:56
My 05 100 GXL landcruiser is showing the same sort of symptoms - sitting for a week can be iffy, re starting - it has two crankers and an aux - it gets little use when we are not travelling, so I now run the smart charger over the batteries each weekend - takes about an hour or less to top them up - I connect to one and the charge eventually runs right through the bank - there is definitely a drain in
mine - and the car has an after market security setup. I always take the ign. keys out (leaving them in causes a drain I'm told, even when turned right off), but I don't lock the car.
Re the above on voltage - conventional wisdom suggests a battery with no useful cranking output can still show what seems to be acceptable voltage (until used).
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