Dead 5 month old battery
Dead 5 month old battery
Not sure what's going on but I just noticed 2 days ago that my battery died. I just came back from a Orlando road trip. Everything was fine when driving down and around town. The first thing I did was removed the battery. I'm going to exchange it out since it's under warranty. I just hope it's just that. I read on these forums that a number of is drivers have this same issue.
Lead Lap
Joined: Oct 2014
Posts: 4,675
Likes: 4,694
From: ON
I never had this issue - During the winter, I will put my vehicle on a battery tender for about 2 days to top it up and will do that every month or so, and even during that 1 month of non use, the battery never lost its charge.
Lexus Test Driver
Joined: Feb 2017
Posts: 6,260
Likes: 1,752
From: Richmond Hill, Ontario, Canada
Not sure what's going on but I just noticed 2 days ago that my battery died. I just came back from a Orlando road trip. Everything was fine when driving down and around town. The first thing I did was removed the battery. I'm going to exchange it out since it's under warranty. I just hope it's just that. I read on these forums that a number of is drivers have this same issue.
I was trying to understand where the battery removal came into play.
Intermediate
Joined: Jun 2018
Posts: 376
Likes: 78
From: TN
I'm guessing yours is a 2014 or 2015? I've heard those year's model had some issues with the battery but I think the resolution to the battery drain was a replacement or update of the ECU. Might be something you check out with the dealership as there is a TSB on it for those model years.
Reading your original post, if everything worked as expected, your long road trip should've charged the battery fully and as you mentioned you were able to drive around town without issues. Have you checked the battery voltage before disconnecting? Was it completely 0 or very low amps?
But since you were able to drive around town, but then when you came back the battery died, that initially tells me:
1. Your alternator is working, at least enough to provide a charge to your battery so that you could start/drive your car.
2. The battery is not holding a charge or holding a very weak charge, barely enough to start your car - which could be confirmed if you tested the voltage at rest and with the engine on.
3. There's something else on your car that is still 'on' (or always 'on') that's draining your battery over time, despite your car being turned off.
All of this of course would be outside of the obvious, such as if you had accidentally left your headlights manually on with the car off without realizing...
Reading your original post, if everything worked as expected, your long road trip should've charged the battery fully and as you mentioned you were able to drive around town without issues. Have you checked the battery voltage before disconnecting? Was it completely 0 or very low amps?
But since you were able to drive around town, but then when you came back the battery died, that initially tells me:
1. Your alternator is working, at least enough to provide a charge to your battery so that you could start/drive your car.
2. The battery is not holding a charge or holding a very weak charge, barely enough to start your car - which could be confirmed if you tested the voltage at rest and with the engine on.
3. There's something else on your car that is still 'on' (or always 'on') that's draining your battery over time, despite your car being turned off.
All of this of course would be outside of the obvious, such as if you had accidentally left your headlights manually on with the car off without realizing...
Lexus Test Driver
Joined: Mar 2016
Posts: 9,509
Likes: 2,576
fwiw my 16 200t has been a trooper battery wise. ran an amp/sub on it since new, leave it parked out in the hot sun for three weeks at a time multiple times, expecting at least a weak start. but it starts up every time as if the car was new. my 16 has a build date of late 2015 so it's pretty old now. not bad for a small battery
is your battery new or the car is new? can't tell from your post?
is your battery new or the car is new? can't tell from your post?
I was traveling last week with no issues. When I returned Sunday, it was parked until Wedensday evening. I tried starting. I jumped it with my other car and ran for a few mins. Yesterday I tried again. Now I'm returning the battery. After testing, the battery is dead. I will replace. This should resolve the issue. However if it occurs again, then I will investigate and most likely it would still be something running.
fwiw my 16 200t has been a trooper battery wise. ran an amp/sub on it since new, leave it parked out in the hot sun for three weeks at a time multiple times, expecting at least a weak start. but it starts up every time as if the car was new. my 16 has a build date of late 2015 so it's pretty old now. not bad for a small battery
is your battery new or the car is new? can't tell from your post?
is your battery new or the car is new? can't tell from your post?
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I'm guessing yours is a 2014 or 2015? I've heard those year's model had some issues with the battery but I think the resolution to the battery drain was a replacement or update of the ECU. Might be something you check out with the dealership as there is a TSB on it for those model years.
Reading your original post, if everything worked as expected, your long road trip should've charged the battery fully and as you mentioned you were able to drive around town without issues. Have you checked the battery voltage before disconnecting? Was it completely 0 or very low amps?
But since you were able to drive around town, but then when you came back the battery died, that initially tells me:
1. Your alternator is working, at least enough to provide a charge to your battery so that you could start/drive your car.
2. The battery is not holding a charge or holding a very weak charge, barely enough to start your car - which could be confirmed if you tested the voltage at rest and with the engine on.
3. There's something else on your car that is still 'on' (or always 'on') that's draining your battery over time, despite your car being turned off.
All of this of course would be outside of the obvious, such as if you had accidentally left your headlights manually on with the car off without realizing...
Reading your original post, if everything worked as expected, your long road trip should've charged the battery fully and as you mentioned you were able to drive around town without issues. Have you checked the battery voltage before disconnecting? Was it completely 0 or very low amps?
But since you were able to drive around town, but then when you came back the battery died, that initially tells me:
1. Your alternator is working, at least enough to provide a charge to your battery so that you could start/drive your car.
2. The battery is not holding a charge or holding a very weak charge, barely enough to start your car - which could be confirmed if you tested the voltage at rest and with the engine on.
3. There's something else on your car that is still 'on' (or always 'on') that's draining your battery over time, despite your car being turned off.
All of this of course would be outside of the obvious, such as if you had accidentally left your headlights manually on with the car off without realizing...
Not sure what's going on but I just noticed 2 days ago that my battery died. I just came back from a Orlando road trip. Everything was fine when driving down and around town. The first thing I did was removed the battery. I'm going to exchange it out since it's under warranty. I just hope it's just that. I read on these forums that a number of is drivers have this same issue.
Racer
Joined: Mar 2018
Posts: 1,589
Likes: 317
From: SoCal
No car drains a battery in 3 days for no reason.
Sometimes they just have a bad cell. I've been through 3 in a little over a year before. Different car but wasn't the cars fault is the point.
Glad it got resolved now hopefully there's nothing causing serious drain.
Sometimes they just have a bad cell. I've been through 3 in a little over a year before. Different car but wasn't the cars fault is the point.
Glad it got resolved now hopefully there's nothing causing serious drain.
Yeah I ran a few errands this morning and I'm 100% sure it was just a lemon battery.
Intermediate
Joined: Aug 2009
Posts: 462
Likes: 56
From: Texas
That's what just happened to mine, it went from working great to completely shot in a split second. No signs at all of a weak battery, slow cranking or anything. I went in to the store and came out 5 minutes later, it was so dead the LED interior lights wouldn't even turn on. I jumped it with my truck and drove it home, turned it off and immediately tried to restart it. Same thing, didn't even hold enough charge to power anything at all. It was only a 2 year old battery from Lexus.