BertL
Active Member
...and for those of us with an extended warranty through year 8 of ownership after the first $200 deductible.Why bother? Tesla does it under warranty.
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...and for those of us with an extended warranty through year 8 of ownership after the first $200 deductible.Why bother? Tesla does it under warranty.
I am at 23.6K miles and 19 months, with no indication from Tesla or the car that my battery needs replacement. Did they start installing better 12v batteries or link them to a generator later in the production cycle?
I just had my car in for service after 30 months. I never saw a notice about the 12V system, but my service advisor said they had been getting notices about the 12V system for a while. If I were you I would check with your service center and see if they are getting any notifications. If so, schedule a service visit for the battery to be replaced.
I had one battery replacement at about two years, and a second one a month later (obviously a defective battery), no replacements since at 62K miles. Assuming that two years is normal for me, next one should be in 2017. The warning came up each time so there was no driving time lost. This beats the VW TDI which required a new 12V battery ($189 + tax each) and a tow every year (because you can't jump a shorted out battery).My Model S will be three years old next week. I have about 24,500 miles. To my knowledge my 12 v battery was only replaced once proactively by the service center a few months after it was delivered. I have never received a warning message regarding my 12 v battery in those three years.
That has not been my experience in any modern vehicle, 2 years seems much more normal.None of the battery replacements (even under warranty) sound good to me.
With a properly designed electrical system, the 12V battery should last 5-6 years.
That has not been my experience in any modern vehicle, 2 years seems much more normal.
Also, does not the Model S battery system try to keep the traction battery at a certain minimum temperature? Does this power come from/thru the 12V battery regardless of the S being plugged in or not?
That has not been my experience in any modern vehicle, 2 years seems much more normal.
That has not been my experience in any modern vehicle, 2 years seems much more normal.
Maybe because you are sub-zero in Calgary ... 5-6 years is the norm in California.
Volt had problems with the battery in the initial model year - it could be charged only while the car is "on". It was fixed pretty quickly.The anecdotal experience of 12V battery life experienced with ICE vehicles, while mildly interesting from an expectations perspective, is irrelevant given how different the demands placed on the battery are compared to an EV. Data on 12V battery life in other EV's, especially the Leaf, and even those (i3, Volt) with range extender engines when driven mostly in EV mode, would be interesting.
The load placed on it is really low - the main battery pack is used to start the ICE, so deep cycling is a non-issue.
Yes, you're correct. I have just checked the standby power use on my Volt with a watt-meter, it's just 2W after the car is idle for more than 15 minutes.Starting a motor is not "deep cycling", it's a short high power event, and the battery is charged quickly as soon as the motor is started. Deep cycling means long term draw down of the battery capacity to a low state of charge.
In my opinion, the main difference is the size of the battery. If the battery was similar in size to an ICE car's battery, it would last much longer.I would gladly trade a longer startup time for a 12v that lasts for five years instead of one.
I wonder if having the car set to the power saving mode helps with this. I use it and don't mind the 10-20 second startup.I would gladly trade a longer startup time for a 12v that lasts for five years instead of one.