What's a good reputable brand for replacement battery

This is for the New 3DS XL (SPR-003). Just found out my battery is bulging (which explains why the 3DS kept dying).

All the ones I see on eBay or Amazon are dodgy looking with mixed reviews stating things like worked for a few days/weeks then stopped.

I'm in the UK and as far as I see, the Nintendo site doesn't sell the original one here.

Any reputable brand worth checking?

Thank you.

Edit: Contacted Nintendo UK and they were able to quote me a price for a new OEM battery that's significantly cheaper than anything found on Amazon/eBay. I went for it and now my 3DS has a new life.