Battery Varta or OEM Mercedes

I put in a Varta CP1254 A3, same form factor, similar enough specs.

UPDATE: I put in the bigger battery, it's great. The Cp1254 A4 gets me 1-2 hours extra use over the A3 and I believe even the original Z55H.

the only time it failed me was when the battery died after 100k miles.

I just replaced my xm3 batteries (they are cp1254a3 with 60mah) and I replaced it with the newer version (cp1254a4 with 74mah). No issues and more capacity.

Yep. Varta is a good battery. My battery died this year in March. I replaced it and paid 800 for a Varta battery for my dodge charger. So far so good!

Varta battery refused to die even after 5years mannn that’s a wow ..to add on I don’t use my car often i use fireblade as my daily commute for the last two years..

My XM3s went from a good 6 hour run time down to 2.5 hours in about 20 months. The last month alone has seen 30 mins wiped off them.

I went with the Varta A4 models bought from a Czech supplier called [Battex.cz](https://Battex.cz).

Varta are a pretty decent brand of battery (although their consumer AAs suck), would not expect it from them.

The older VARTA battery could only hold a charge for 15 - 30 minutes at the end. It has been in use since January 2020 and was out of use for 8 months in 2022.

ZeniPower battery could still hold a charge for a long time. Estimating 5-7 hours.

Got a Varta battery and it only lasted 1.5 years. My car is parked under the sun on weekdays but was expecting more from the battery

I had the same problem. My car was brand new too but was sitting for a bit before it was sold to me. I brought it in to get charged a few times but the message was still coming up and I was definitely driving it enough. Eventually they just changed the battery under warranty.