Dead battery

[B5Passat]

Went to start the car the other day and the battery was dead. So I trickled charged it for a day and night but it was still dead so I left it charging while going away over Christmas for a few days. However, it was still dead.

So where is a good place to buy a battery from?

Car is a 2012 Passat with stop start

[le mans]

Not sure where you are located but Battery Bill in Ti Rakau Rd, Auckland have served me very well on two occasions.