Sadly I never did find a replacement lipo, believe me i searched for weeks to no avail, nor did i receive a lipo from beladog despit his offer, or anyone else..
I tried many lipo's and li-ion's, even tried a spare receiver channel, nothing would power up the trio, so i gave up, I suspect there was another problem other than the lipo,
probably caused by all the fiddling around with power lol
so I would urge you to go carefully if you are trying the same mate!
ps: the battery for the ipod is a 3.7v 950 mah li-ion, not a lipo, i did manage to use that li-ion for another cheap HD cam, have a look at this.....
Good luck with yours