Tesla will now send push notifications when 12V battery needs to be replaced

Aug 27, 2023

Tesla is seemingly now issuing push notifications when the vehicle's 12V battery needs to be replaced.

Twitter user BLKMDL3 shared a screenshot of a notification he received from Tesla that informed him his 12V battery must be replaced soon. It also encourages him to schedule a service appointment to replace the battery.

"Really smart, hope they add push notifications when you have low tire pressure or other important alerts," BLKMDL3 says in the tweet.

Since Tesla has access to virtually every piece of information on the vehicle, it certainly seems like a welcomed feature to notify owners if anything needs to be repaired or replaced, like windshield wipers, wiper fluid, or a headlamp.

The 12V battery in Teslas powers smaller motors and functions around the vehicle, including lights, power window motors, wiper motors, power lift gate, washer fluid pumps, ABS electronics, the main display and more.

Last year, Tesla switched away from using a 12V lead-acid battery to a lithium-ion battery. Lead-acid batteries perform well in gasoline-powered vehicles because they produce the high output needed to start the engine. However, that high output is not needed in an electric vehicle.

Lithium-ion batteries last longer, weigh less and are much better optimized for electric vehicles, as they will last the lifetime of the vehicle and never need to be changed.

Whether you have a lead-acid or lithium-ion low-voltage battery, they're both charged through the vehicle's main battery pack instead of an alternator like a traditional vehicle.

With Tesla at the forefront of battery technology, specifically for vehicles, a study conducted by Dr. Jeff Dahn and his team at Dalhousie University in Halifax, Canada, says that the Austin-based automotive company may be able to produce batteries that last 100 years. Dahn and his team has been working exclusively with Tesla since 2015 to develop new Li-ion batteries.

Earlier this year, Tesla started delivering Model Ys from their Austin, Texas Gigafactory with their new 4680 battery pack. These battery packs have already seen impressive charging rates and are showing very promising potential.

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