QUOTE(Roman Catholic @ Mar 8 2019, 04:53 PM)
Usually what happens is that, the battery reseller would lend to you a spare battery first, while they investigate the problem with the faulty battery that's under warranty.
If it's confirmed to be faulty, they would give you a replacement and you have to return back the battery that was loaned to you.
That's what happened to my neighbour battery. Keep your Battery Warranty Card in the car always.

QUOTE(magnesium @ Mar 9 2019, 11:09 PM)
My case, they check with meter, the value below acceptable
Can't remember but not voltage value
They straight away replace with a new battery
Bosch mf
QUOTE(Jackofree @ Mar 10 2019, 05:03 PM)
I just show them receipt and warranty card then they give me new battery on the spot. I guess they claim it from century after that.
Looks like there are different processes for warranty claim a car battery.
Thank you for your replies.