battery type in atlas with start /stop system

Did you look at the top by chance? My 2019 had EFB+ in large font on top and a window to see if the battery was good or bad.


Sent from my iPhone using Tapatalk

they're AGM batteries, so any suitable AGM battery maintainer will work.

I use a CTEK on my R32 and really like it, so it's usually what I recommend.

Yea I love my CTEK MXS 5.0. I’d still double check though since I’ve seen VW use EFB+ on my 2019 Tiguan, 2019 Atlas, and my dad’s 2020 Tiguan.


Sent from my iPhone using Tapatalk

I did look and didn't see any evidence on the battery,but I will ask the dealer to look up the vin # and confirm what's there.
I'll report back.

I see the battery does have a charge circle window that is either black if battery is good yellow when it's not. I've never seen that in a standard battery so it's most probably a AGM. The battery is also sealed so not likely a lead acid battery.

ribbit said:

I see the battery does have a charge circle window that is either black if battery is good yellow when it's not. I've never seen that in a standard battery so it's most probably a AGM. The battery is also sealed so not likely a lead acid battery.

Click to expand...

That's an EFB+ battery. Never seen an AGM with that, as the window lets you know if the electrolyte solution in an Enhanced Fluid Battery is still good or not. I replaced my factory battery this month and it had that window. I had an Audi AGM battery in my Tiguan and an Odyssey AGM battery in the Atlas now and glass mat batteries don't have that window.

thanks that helps .