vs
Battery OEM Hyundai or Deka
Reviews
You can get an Deka AUX18L from batterymart.com for $159 shipped to your door. Deka is the OE manufacturer of the BMW battery for the i3. My original battery lasted 7 years, it’s a no-brainer.
Pros: lasted 7 years
Vehicle:
BMW
Part number: AUX18L
Schedule the car to start, pre condition the battery if cold, climate to start, hop in and go.
Pros: warm seat, warm car
Vehicle:
Hyundai
I use Deka sealed batteries so less offgassing messing up terminals.
Pros: less offgassing
Cons: messing up terminals
I only use deka on my service rig. Usa made quality. Though listed at 540 CCA, MY Midtronics tester shows they output 650 - 750 CCA.. I easily get 7 years use in the field with these.
Pros: USA made quality, high CCA output, long lifespan
Unser Ioniq5 hat nach 4 Jahren und knapp 60.000€ immer noch einen SoH von 100%. Haben zwecks Weiterverkauf extra auslesen und dokumentieren lassen. Zudem gibt Hyundai 5 Jahre allgemeine Garantie und 8 Jahre Garantie auf den Akku. Wir waren sehr zufrieden mit dem Kauf und mögen den IONiQ immer noch sehr.
Pros: 100% Batteriezustand, sehr zufrieden
Vehicle:
Hyundai
Deka batteries. I’ve turned wrenches for twenty years and they’re the only ones that still consistently test far above their rated capacity when new. I have one that’s 7 years old and just installed one in my other rig last year.
Pros: above rated capacity, long lifespan
Mine on my previous car, a 2016 elantra lasted 8 years with huge winter temp drops up to -45 celcius
They battery they install is pretty good, other people around here need to change it after 5 years
Pros: battery pretty good
Cons: change after 5 years
Vehicle:
Hyundai Elantra
I can say from my experience if it drops below -20C a level one will only really keep the battery from losing power.
Pros: keep battery from losing power
Cons: only keep battery warm
Vehicle:
Hyundai
Depends on the car, both highway speeds:
- Our good EV, Ioniq 6: went from 18kWh/100km to about 26kWh/100km.
- Our bad car, EQB: Went from about 26-28kWh/100km to about 29-30kWh.
Pros: increased energy consumption
Vehicle:
Hyundai
the only issue I have ever had with this car is the battery dying on me in under 2 years
Cons: battery died quickly
Vehicle:
Hyundai Elantra
Mileage: 71000 km
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Which battery to choose — OEM Hyundai or Deka?
If choosing battery across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare battery across these categories:
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which battery are better — Deka or OEM Hyundai?
In March 2026 on PartReview, battery Deka were overall better than OEM Hyundai.
- OEM Hyundai received a PR Score of 56 out of 100, and Deka scored 94 points.
- OEM Hyundai ranked 21 in the overall ranking, and Deka ranked 3.
- The average rating is higher for Deka (4.4) than for OEM Hyundai (3.5).
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Battery Deka have better feature ratings than OEM Hyundai:
- Indicator - owners believe, that this property for Deka is better than OEM Hyundai.
- Cranking - drivers claim, that this property for Deka is outperforms OEM Hyundai.
- Lights - reviews suggest, that this property for Deka is preferred to OEM Hyundai.
Which battery are more popular — OEM Hyundai or Deka?
In March 2026 on PartReview, battery Deka were overall more popular than OEM Hyundai.
By vote balance, battery Deka surpassed OEM Hyundai:
- For OEM Hyundai, the ratio of positive (26) to negative (20) votes is 6 votes.
- For Deka, the ratio of positive (143) to negative (8) votes is 135 votes.
By number of reviews, battery Deka surpassed OEM Hyundai:
- For battery OEM Hyundai there are 15 reviews: 8 positive, 1 neutral, 6 negative.
- For battery Deka there are 50 reviews: 47 positive, 1 neutral, 2 negative.
Which battery do car owners prefer — OEM Hyundai or Deka?
In March 2026, according to PartReview, battery OEM Hyundai and Deka have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
Other comparisons of battery
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of battery OEM Hyundai with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
Also available: comparisons of battery Deka with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
You can also see who is better among other battery manufacturers: OPTIMA or Varta, OPTIMA or Bosch, OPTIMA or OEM Subaru, OPTIMA or OEM Volkswagen, OPTIMA or YUASA.