Battery OEM Mazda or Bosch

The last two batteries I bought for my GTi, were specified for a Mk4 Golf/Jetta. Both of them were Bosch and they are both different sizes. Both of them ran me about $150 I went with the Mk4 batteries because Pepboys didnt carry for a Mk3. But both of them are fine

Lead acid batteries work great and have a reputation for going the distance.

just replaced 4 year old battery in my 2010 Wagon. It was not really a rocket science but it was nice to have a write up nonetheless. The biggest issue for me was to figure out group size for my battery: supposedly both 47 and 48 work but I wanted to get an exact model. After some online research and hard measurements it was clear my current battery was group size 48. Went with Bosch from Pep Boys for 108 (with tax and after 30% coupon). Despite the car being without the battery for 8+ hours, I had no issues with codes, errors, etc. The only thing I needed to adjust was the time.

If you have a PepBoys nearby, they have a Bosch that fits.

I have recently had both batteries replaced and the garage I use recommends Bosch as they have a 6 year ' no quibble ' (unlike VW) warranty . They are to the same spec as the Varta batteries and the right one is a 62ah normal lead acid type .

Dude save your money and chance battery yourself. I disconnected battery million times before and all i needed to do is "relearning window position". I bought Bosch group size 48 battery from Pepboys. It fits like glove and has 3 year warranty.

Walmart everstart battery lasted about a year from my experience. This used car i bought came with a Bosch battery. it died right before 3 year free replacement. I took it to the pepboys and they gave new one for free.

the stock battery only lasted 3 years. My VW prior lasted 7 on the OEM battery.

Battery died less than 12000 miles. Apparently Mazda is using cheap batteries, as this seems to be a common issue. But I still see others complain about the same thing.

first issue I had was the battery at around 2000 miles, it was replaced under warranty.