I'm in a quandry I've purchase a bunch of 1.2 aaa nimh's off ebay and used a 9.6v 8 battery holder from mouser.com to make my own battery packs for the pico tiger moth...It barely provides enough power for level flight let alone take off....The 8 cell 1/3 a 9.6v pack from a sapac pitts when attached gives double the thrust and power...I've tried everything to figure out why...The voltmeter reads 10.5 v on both! What do you think the problem is? the home made pack should give the same performance but it's useless and the plane is totally under powered...Am I missing something? Are the chinese batteries not correct for rc electric planes