Battery help!

Help! I’m trying to find a replacement for this battery.

It appears to be 2 single cell lipos (3.4v) wired in parallel with a protection circuit of some sort. I’d like to find two replacement cells, or one in the same foot print. I could then attach these two, or one new cells to the protection circuit.

A few photos:

http://www.tonyfletcher.com/~pickup/Sit … G_5394.jpg

http://www.tonyfletcher.com/~pickup/Sit … G_5392.jpg

The complete brick is approx. 95x60x10mm

Any ideas on sourcing a replacement would be much appreciated. Thanks!