vs
Battery OEM Mazda or Deka
Deka is the best I’ve found.
Pros: best performance
Yes and you can go the route I suggested earlier, with a Group 47 AGM , Deka brand. I paid $135 for mine 4 years ago at Battery Mart. Fit is good, just add a wedge under the battery hold clamp. Cannot leak acid due to the design. I run diesel farm tractors, too. AGM's are the only batteries I can get a decent life from due to the vibration. The extra capacity over the standard lead acid batteries is great for the cold morning diesel start. My point is that they are quite durable. An AGM for a Rabbit is not overkill when you consider the quality problems in regular lead-acid batteries these days.
Pros: durable, cannot leak acid
Cons: add a wedge
Vehicle:
Volkswagen
Part number: 47
I've always been a fan of Deka batteries, their ETX15 should be the correct battery.
Pros: good batteries
Part number: ETX15
Deka aka East Penn is the best battery manufacturer out there. They dont leak as much, they last typically 3-6 years depending on circumstances
Pros: best battery manufacturer
Cons: depends on circumstances
I'm using Deka. But it's a good choice. I haven't any problems with it.
Pros: good choice, no problems
Deka batteries are still good quality. They are somewhat harder to find than other brands.
Pros: good quality
Cons: harder to find
Fall 2016 Update: I just installed a new battery. It is a Deka Group 47 AGM. Cost was about 135$ at Battery Mart, 20$ more than the standard battery the store offered. It is odd in that the carry handle is square to the battery length. The specs say it weights 37-1/2 lbs. 600 CCA at 0 F. Two minor things: The battery foot flange is not thick enough to match the battery holding channel or the holding clamp. Some sort of wedge needs to be used. There are probably height adapters or spacers sold for that. Second, the hood release cable will need to run on top of the battery corner, unless you slide the battery out toward the radiator more than I want to.
Pros: 600 CCA at 0 F
Cons: wedge needs to be used
162km at 42% battery is still kinda poor for 2025.
Cons: poor range
Vehicle:
Mazda
My 2025 CX-30 battery is already showing signs of dying but I bought the car in April but then had surgery in June and only went back to work today so it sat for long periods and I do leave my dash cam in parking mode. It might come back some after being driven more or it might not.
Cons: showing signs of dying
Vehicle:
Mazda
The OEM batteries are shit. It died around the two-year mark.
Cons: poor quality, short lifespan
Write your review
Help others - share your experience with this part.
Comparisons
Show all
Voted AGAINST engine oil RAVENOL on the rating page
The brake discs FEBI got the first review!
The brake caliper OEM BMW got the first review!
The timing chain OEM Porsche got the first review!
For cabin filter Fram already 25 reviews.
For tires GISLAVED already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best windshield already 14 brands participate!
In the rating best starter motor already 10 brands participate!
In the auto rating brake discs for Volkswagen Golf already 10 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating tires for Toyota Corolla already 50 brands participate!
For oil additives LIQUI MOLY already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page