LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Battery dies in a week

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Old 07-25-20, 08:30 AM
  #16  
swfla
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Zammer, where did you buy this battery 2 months ago? Get it load tested for free at any auto parts chain store or where you bought the battery. As pointed out above, not every test is a load test. So put on your mask and get out there this weekend for a load test and resolve this. Bring your receipt. PS it must be fully charged to properly test it as SDLS points out.

Last edited by swfla; 07-26-20 at 10:50 AM.
Old 07-25-20, 04:54 PM
  #17  
sdls
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Originally Posted by swfla
Zammer, where did you buy this battery 2 months ago? Get it load tested for free at any auto parts chain store or where you bought the battery. As pointed out above, not every test is a load test. So put on your mask and get out there this weekend for a load test and resolve this. Bring your receipt.
+1
Make sure the battery is up to snuff before proceeding any further;
My advice regarding charging was really meant for the usage case of having the car sit for a while without driving it. If you can't or won't trickle charge it, then you have to think about a way to unplug the battery when the car isn't in use because the car will draw power when sitting. Disconnecting the battery is an inelegant and unpleasant solution. But I've done it once before when going on a 2 week trip. The car was garaged and I didn't have a trickle charger at the time.
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Old 08-17-20, 11:20 PM
  #18  
gordo53
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My '09 would last about 2 weeks without running before the battery died. You might want to check the current draw when the car is off, doors closed, lights out, etc. Disconnect the ground lead from the battery and put a VOM set on the highest amp setting between the ground lead and the negative terminal. The draw should not be greater than 50 mA. Good luck.
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