Best quality cellphone batteries?

[Old Snake]

I'm looking for a spare battery for my phone. Is there store in the city that sells 2500mAH Lithium Ion batteries. What brands are trusted?

[K3RMiTdot]

what phone would this be for?

[Old Snake]

Galaxy Note, expansys.ca has them but I was wondering if I can just go to a store within the city if they have it.

[spike98]

When it comes to cell batteries its OEM or nothing IMO. The aftermarket batteries that claim increased capacity are all most always full of shit. There is an extensive thread on it on xda dev. It most cases the OEM batteries meet or beat the claimed high capacity ones.