I thought I might update this thread, to point out the unfortunate fact that this battery was shipped from China, and not from San Fransisco as one would expect from a seller who lists their location as actually being in San Fransisco.
I can't help but think that they are taking advantage of people looking for US based purchases with this address.
Knowing this in advance, I would have purchased one of the kits with the larger 40152's in it that have the screw on button end for easier maintenance.