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Spare parts reviews ➔ All comparisons ➔ Deka ➔ OEM Subaru

Battery Deka or OEM Subaru

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Deka
OEM Subaru
OEM Subaru › Battery
deziner222
  • Cranking:
  • Lights:
  • Indicator:
Rating 4.0

I had to replace the battery on a 2016 Crosstrek this summer and, in retrospect, missed a bunch of warning signs before it finally wouldn’t start: slow cranking, occasional extra crank needed, flickering dash lights, and generally dim interior lights.

Pros: fixed starting issue
Cons: slow cranking, dim lights
Vehicle: Subaru
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Deka › Battery
liam821
  • Indicator:
Rating 5.0

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
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OEM Subaru › Battery
Hour-Sell7983
  • Cranking:
Rating 4.0

with the auto start/stop eliminator installed after 1 year of ownership (using the auto start/stop feature the first 6 months and manually disabling it the last 6 months), my 2019’s battery lasted 5 years and 160k km before it started feeling weak and was replaced as a precaution.

Pros: battery lasted 5 years
Cons: battery feeling weak
Mileage: 160000 km
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OEM Subaru › Battery
GrimBeaver
  • Cranking:
Rating 4.0

My 2021 with 84k miles was very similar. Even had the auto start fail to restart the car once when it was cold. I just had the battery replaced with the new larger size one and it made a huge difference.

Pros: huge difference
Cons: auto start failed
Vehicle: Subaru
Mileage: 84000 km
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OEM Subaru › Battery
Rick91981
  • Cranking:
Rating 3.0

Very unlikely to be the starter, though anything is possible. I'd put money on the battery being weak though. Voltage isn't the end all be all, you need to know about the cranking amps.

Cons: battery being weak
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OEM Subaru › Battery
oki-ra
  • Cranking:
Rating 1.0

I bought my wrx brand new in 2015, the battery lasted two years and was replaced at the dealership. That second battery lasted two years and I went back for them to replace it and said that they wouldn\u2019t because it was already replaced under warranty. She told me they would replace it for something like $160, I said \n\n\u201cLook lady the first battery lasted two years and the second lasted two years, I\u2019m not spending my money on your junk batteries.\u201d

Cons: lasted only two years
Vehicle: Subaru
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OEM Subaru › Battery
wood_nich
  • Cranking:
Rating 2.0

21 Outback. Battery issues - I’m on my fourth battery since buying it. Have had issues with door seals leaking, but those were fixed easily under warranty. Definitely can confirm the assembly quality - we had to test drive quite a few before getting one that didn’t rattle on every bump we hit.

Pros: practical car
Cons: battery issues, assembly quality
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Which battery to choose — Deka or OEM Subaru?

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:

Comparison of battery Deka and OEM Subaru
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which battery are better — OEM Subaru or Deka?

In March 2026 on PartReview, battery Deka were overall better than OEM Subaru.

  1. Deka received a PR Score of 94 out of 100, and OEM Subaru scored 41 point.
  2. Deka ranked 3 in the overall ranking, and OEM Subaru ranked 27.
  3. The average rating is higher for Deka (4.4) than for OEM Subaru (2.5).
  4. Battery Deka have better feature ratings than OEM Subaru:
    • Lights - owners believe, that this property for Deka is better than OEM Subaru.
    • Cranking - drivers claim, that this property for Deka is outperforms OEM Subaru.
    • Indicator - reviews suggest, that this property for Deka is preferred to OEM Subaru.

Which battery are more popular — Deka or OEM Subaru?

Battery Deka and OEM Subaru were equally popular according to data in March 2026.

By vote balance, battery Deka surpassed OEM Subaru:

  • For Deka, the ratio of positive (143) to negative (8) votes is 135 votes.
  • For OEM Subaru, the ratio of positive (89) to negative (125) votes is -36 votes.

By number of reviews, battery OEM Subaru surpassed Deka:

  • For battery Deka there are 50 reviews: 47 positive, 1 neutral, 2 negative.
  • For battery OEM Subaru there are 69 reviews: 25 positive, 7 neutral, 37 negative.

Which battery do car owners prefer — Deka or OEM Subaru?

In March 2026, according to PartReview, battery Deka and OEM Subaru 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 Deka with: OPTIMA, Varta, Bosch, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW, ODYSSEY.

Also available: comparisons of battery OEM Subaru with: OPTIMA, Varta, Bosch, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW, ODYSSEY.

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.

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