Will My Battery Last 35 Days?
07-22-20, 09:36 AM
#16
Yes this is certainly what I would do as well and for the same reasons as stated by sderman. Yes you will lose some settings and the entertainment system programming but that will happen anyway if the battery discharges. There is a constant drain on the battery by the car's electronics when its connected and disconnecting it may also serve to deter any simple thefts of opportunity.
07-22-20, 11:55 AM
#18
Intermediate
Battery dies in 7 or 8 days
(2011 LS460, 27K) Because of lockdown I am able to drive it only every 7 days, sometimes 8, when I take it for 20-30 freeway miles @ 70mph. The last two times, it wouldn't start after a week of non-use. AAA said the battery was weak and jumped it. Dealer said my alternator, charging system are OK. I replaced the battery about a month ago. There is no electrical outlet in the garage to which I could connect a charger. The lights, radio, are off when I leave the car, the only visible "on" thing is the security lights on the doors. Suggestions are welcome as to the cause and/or solution.
07-22-20, 12:02 PM
#19
Not happily, but I would disconnect the positive battery lead. You'll lose some settings but you won't possibly then be putting your battery into a state of deep discharge which is not healthy for a conventional lead acid battery. Even if you have a lithium battery jumper (which I always keep around) or use roadside service to give you a jump, your battery will have suffered and it's life span compromised. This would also give you piece of mind. But if you go this route I assume you will need to use a physical key to unlock the drivers door when you return.
Last edited by sderman; 07-22-20 at 02:07 PM.
07-22-20, 12:09 PM
#20
Lexus Test Driver
(2011 LS460, 27K) Because of lockdown I am able to drive it only every 7 days, sometimes 8, when I take it for 20-30 freeway miles @ 70mph. The last two times, it wouldn't start after a week of non-use. AAA said the battery was weak and jumped it. Dealer said my alternator, charging system are OK. I replaced the battery about a month ago. There is no electrical outlet in the garage to which I could connect a charger. The lights, radio, are off when I leave the car, the only visible "on" thing is the security lights on the doors. Suggestions are welcome as to the cause and/or solution.
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