I used carput recently. Paid at lazada. 18 months warranty.

Paid at lzd, received notification at carput app. They delivered the battery and installed for me. But price includes trade in.

Can also pay at shopee but only gets 12month warranty if paid there. Cheaper a bit.

Most sellers only give 12 months warranty.

It was my first time using their service.
Best part is their price iirc is lower or on par with those online sellers that post their batteries to us. With carput, we don't have to self install the battery and warranty is probably much easier to claim compared to those online sellers that are most likely to ask you to post back the KO battery to them - ain't got time and energy for that.