Returning car battery to Costco?

[carreauchompeur]

Wondering if anyone had any idea of their policies/ease of return.

Basically the car had a new Bosch silver battery 2 years ago. It's starting to crank a bit slower and whilst it hasn't died yet I am concerned it will. Bought from my local warehouse.

If it's going to be a case of straight swap I'll just dap the car up there and remove/refit in the car park!

[carreauchompeur]

Great, sounds good. Will keep an eye on it but if it's a swap rather than faffing about testing it I'll take it in sooner rather than later!