Real sword type 56-2 battery compatibility - looking for 11.1 lipos
 

I tried fitting a long stick-style battery (11.1 lipo), which was made for AKs; but it didn't fit. The only way that I was almost able to get it in, was so tight that the connector was digging into the battery (like made huge indents), which I didn't find very safe.

Any ideas? The 7.4 fit fine, but I wanted the torque/power of the 11.1.

The 11.1v stick battery that I use in my Real Sword is this one. Fits perfectly.

http://www.tacticalgeartrade.co.uk/m...A/S/AS4075.jpg

I found that round batteries fit better.
http://www.wgcshop.com/WGC_Shop/images/gep_00203_m.jpg