vs
Battery Deka or OEM Audi
I don't recommend anything less than the DEKA ETX-20L for a car that see true street duties. The ETX-14 is 200 CCA @ 12 lbs, and the 4 lbs weight loss isn't worth it for 70 CCA loss on a small battery in charge of starting a car. The ETX-18L does 270 CCA @ 16 lbs and much more suitable for our 4 banger application. The ETX-18 however is the one I recommend to 95% of readers of this thread. It cranks out 300 CCA at 18 lbs, which is still plenty light.
Pros: cranks out 300 CCA
Cons: 70 CCA loss
I've always had sucess with the Deka ETX-20L in the DSMs, two EVOs, a Saturn race car, and now the TT (most of them running on E85 which is hard to start on cold winter mornings). As long as you discipline yourself to not run accessories with the engine off, they are a great option!
Pros: great option, sucess with Deka
Cons: discipline yourself
Vehicle:
Audi TT
Part number: ETX-20L
I had an Optima 5 or 6 years ago but I heard the quality has went down and the warranty isn't as good as it used to be. I picked up a Deka intimidator deep cycle battery and It's by far the best battery I've owned.
Pros: best battery I've owned
Cons: quality has went down
I got a deka 15 and i love it
Pros: i love it
Part number: 15
I had to replace my comfort battery as well 2 weeks ago. The please start engine warning came on all the time before cranking. I ended up getting the batterie from an Audi dealer since the local VW dealer didn't have one in stock. At Audi the battery actually cost $ 60.00 less than if you would buy it from VW.
Pros: cheaper at Audi
I'm running a Deka ETX 14 and us a battery tender jr. works great
Pros: works great
I had the ETX14 in my N/A R32 for over 2 years and only time it really drains down is short starts and stops from the afterrun coolant pumps running for 5 minutes.
Pros: lasted over 2 years
Cons: drains with short stops
Vehicle:
Volkswagen
I have the DEKA ETX20L it started my car in 15 degree weather... I leave the car off for 3 days out of the week and it starts right up... I've been using it daily for quite a while... it has died on me a few times but it was my fault for leaving the fan on.. I just recharged it and it has been fine.
Pros: starts right up
Cons: died a few times
just had a etx14 sat in car for over a month and started right up.
Pros: started right up
Just use a Deka ETX20L. I think they're 15 pounds or so and they're cheap and widely available. Mine seem to last about 2-3 years, although they usually die from me forgetting to turn the headlights off. I was able to recharge my last one using a wall charger and I squeezed another 6 months out of it before finally replacing it.
Pros: cheap, widely available
Cons: last about 2-3 years
Part number: ETX-20L
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