vs
Battery Tesla or Deka
The batteries easily last 300k miles even if they're not well taken care of.
Pros: long lifespan, durable
Mileage: 482802 km
I\u2019m glad I have a Tesla with a 16v LV lithium Ion battery. Should last the life of the car like the HV battery.
Pros: 16v lithium Ion battery
If I could easily repurpose the cells in my 140k mile Model 3 into home storage for my solar I would rather do that than sell the car. 3% degradation the car itself needed more work than a replacement battery ever would have cost.
Pros: minor battery degradation
Cons: car needed more work
Mileage: 140000 km
UPdate - new battery and bluetooth 12v monitor installed last Monday night, all good since then including one day with 40 miles of driving and recharging in weather well below freezing (16 to 28 F), but I happen to be mostly driving other cars the rest of the time since.
FYI, altho I ordered from Remy, the sticker on the battery I received says [Deka Intimidator EHP](https://remybattery.com/batteries/brand/deka-intimidator-batteries.html?srsltid=AfmBOorxsFi7eoMbizQPDMsF1q-32WuvMxLPyiLSgftX8ExWmqHWSfq4). IDK if there's any functional difference - it seems to have the exact same terminal connections as the OEM BMW battery it replaced.
Also FWIW, despite no indicator on the shipping box for 'this side up' and it clearly getting Ace-Ventura'd around by FedEx, it did not leak or show any signs of damage inside the shipping box. It was well padded with foam made to fit the battery and fill the entire shipping box. So far I'm happy and the car seems to be too.
Pros: happy with new battery
Vehicle:
BMW
OEM for Harley. I've replaced several with an average lifespan of 5 yrs at 20%+ cheaper than Harley branded
Pros: long lifespan, cheaper
As a harley tech I see more aftermarket batteries fail then I see oem ones fail. There are a few good aftermarkets like DEKA but for the most part aftermarket batteries seem to fail quicker then oem.
Pros: OEM batteries more reliable
Cons: aftermarket batteries fail quicker
As promised: 2019 M3 LR , 55k miles/88514km, latest Tesla Battery Health Test 83%
A bit worse than expected.
Pros: battery health test 83%
Cons: worse than expected
Mileage: 88514 km
I have an early VIN 2020 MYP with 80,000 km; the diagnostic says 87%, so 13% drop in battery health. Range calculation at 100% SOC dropped 4.9%.
Pros: diagnostic says 87%
Cons: 13% drop in health
Mileage: 80000 km
Yes, my 2021 battery died mid 2024. No warnings, no abnormal behaviour. Luckily it was still under warranty and the towing and repairing were free.
Pros: towing and repairing free
Cons: no abnormal behaviour
I recently had to sell my 2013 model s for scrap value because the battery was out of spec. Tesla wanted 25k to replace. It was right at 200,000 miles.
Cons: battery out of spec
Mileage: 200000 km
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