http://www.b-p-p.com/proddetail.php?...b4cbb18115bd06
I've measured the pack used in the MP7 and it's approximately 89mm long (sans connector; cells only), 14mm wide, and 28mm tall. Most LiPo packs will fit the first two dimensions, but not the third. The above pack is the first exception I have found, at 25mm. I'd like to try it out as it gives a slight boost in both mA and voltage, though I don't like the fact it's only a 10C pack. I don't suppose anyone's put an ammeter on an MP7 yet?