Bell vs Sprint extended batteries unrecognized

[bluenote]

Hey guys

I ebayed a new battery for my Bell HTC touch diamond and received it a couple days ago. I was really careful to make sure that the ad said it would fit and charge in a sprint diamond, because I know that a lot of cheap extended batteries only work in the GSM models.

Anyways to make a long story short, to my huge disappointment, it isn't recognized, and it doesn't charge. I emailed the seller, and he's telling me that these batteries only charge in a "sprint touch diamond" , and not a "htc sprint model" (whatever that means).

Underneath the battery my phone says its a MP6950.

Can anybody confirm that the sprint diamond and my bell diamond are actually different?