vs
Battery Deka or OEM BMW
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
Deka. Solid battery.
Pros: solid battery
I’ve had my iX for 2.5 years and have logged 122k miles. I haven’t noticed any degradation in battery capacity. Just the normal summer/winter fluctuations (live in Midwest).
Pros: no battery degradation
Vehicle:
BMW
Mileage: 196339 km
My Mechanic had me get non-AGM style from Deka. I have the dual battery setup, and have drained my spare a few times already and it’s out performed the previous brands.
Pros: outperformed previous brands, withstood draining
I had one with the battery that lasted just under 12 years.... Old original BMW batteries are built different! Especially if the car is driven regularly.
Pros: lasted 12 years, built different
Same with my 2008 BMW 535d. 900ah and still going strong
Pros: still going strong
Vehicle:
BMW
I had a battery in a 93 BMW last forever like that
Pros: lasted forever
Vehicle:
BMW
I really like the Deka ETX12. Point is these batteries are bulletproof. They last longer than any other battery I have ever gotten. I highly recommend them.
Pros: bulletproof, long lasting
Part number: ETX12
I also just had a new battery installed by BMW, $600 for the honor.
Pros: new battery installed
Cons: expensive installation
Vehicle:
BMW
530e with a little over 20,000 miles shows 10 miles electric range on a nice summer day. It used to show 15 when new. BMW said that the drop was not warranty worthy.
Cons: reduced electric range, not warranty worthy
Vehicle:
BMW
Mileage: 32187 km
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