The Mk6 Golf Battery Thread

[magellan]

Just my battery replaced under warranty after 2.5 years and 35,000kms Build date June 2011

[Racer88]

Mine lasted 3 years 2 months on the R, no warning just went.

[ximo]

A mate of mine helped me installed a set of Golf R LED taillights recently, when he tapped into VCDS, noticed there's been a bunch of errors related to battery. I bought my car through private sale November last year...build date Sep 2011, now travelled around 42,000 kms. Should I be concerned and have it checked out?

[Ryan_R]

A bunch of voltage errors just means the battery was flat once (i.e. left headlights or something on), and not usually a continuous problem. Car batteries generally last between 3-5 years though.

[nat225]

3kg lighter!

Oem battety is 3 yrs and 4 mths old, on start up the voltage drops to 9.2V

Decided to change it today before the oem one gives up when i need the car urgently

I had a flat battery when i was going to drive to a new job! So it was a lesson learnt.

Sent from my GT-I9300T using Tapatalk

[nat225]

Sent from my GT-I9300T using Tapatalk

[DonJuan]

Battery World stores do MK6 GTI / R batteries for $179... Just saying

Nat, nice pickup but these AGM's are quite expensive, think from memory they are easily double the price of standard replacement. How does the additional height go due to the fact the optimas don't have recessed terminals?

[tonymy01]

Battery World stores do MK6 GTI / R batteries for $179... Just saying
Nat, nice pickup but these AGM's are quite expensive, think from memory they are easily double the price of standard replacement.

But very different battery technology. A couple of deep cycles on a standard battery will kill it, those are designed for deep cycle. With all the stuff the VW does with the engine off (combined with, say,a traffic/parking camera drawing power 24x7), it doesn't take many days to cycle the battery enough to drop it below cranking level. My R is only 2 years old, and i notice the battery has significantly reduced capacity. I often don't drive the car for between 3 days and two weeks. I typically have to put it on charge for a two week stint without driving.

[Ryan_R]

I've been driving a lot less recently (got myself a motorbike to commute)... might have to turn off the 'Auto-rain closing' feature in VCDS to compensate

[Diesel_vert]

Oem battety is 3 yrs and 4 mths old, on start up the voltage drops to 9.2V

Decided to change it today before the oem one gives up when i need the car urgently

I had a flat battery when i was going to drive to a new job! So it was a lesson learnt.

Looking at the photos:

- Cold cranking amps of the Optima D35 (650 A) is up 35% compared to the OE battery (480 A).

- Capacity of the Optima D35 (48 Ah) is down 20% compared to the OE battery (60 Ah).

3kg lighter!

That probably explains the reduction in capacity.