Ok well it was suggested from here actually to buy it but im confused, you say mine is 50a constant and 75a burst but the one you listed is actually rated for 20c constant, 30c burst.
Now I have ran it several times now and it hasnt had any issues doesnt even get all that warm, someone said their labeled a bit lower then they really are also.
If you still want it here is the size
Size-
30mm x 50mm x 160mm
If it matters here is some info from truerc on this pack...
PERFECT FOR 8th scale cars and 40-60 size planes
We field tested these cells to 113A, Thats well over 20C
http://www.truerc.net/canada2/projec...5000test17.jpg