[Treo] Question about Seidio 2400mAh battery I ordered for my 650

[onepalmaddict]

I just received my new 2400mAh battery for my Treo 650 and noticed the
label states, "For Treo 700" and lists the part number "BASI24TR700S".
However, on TreoCentral the part number for the "700p, 700w|wx, 650"
is listed as "BASI24TR650".

Are the batteries interchangeable? Can anyone confirm receiving one
with a different part number (like mine)? Is this a mistake?

Thanks!
Mark