If you think a Li-Po battery will ruin your AEP, here is Maniek44 to show how to make it ready with the use of the Perun MOSFET. Installing it should not be a problem as long as you follow his method... "Today i will show you how to install a Perun Mosfet to your AEP for best performance with a Li-po."
For airsoft players looking for a Lipo battery with a Deans connector, here is one from G&G Armament... "The new and improved 11.1v Lipo Battery is ideal for our premium G2/G2H rifles which are wired to deans. Our new tri-panel battery is 4% shorter which allows better battery compartment storage in tight stocks. Now available. Contact your local G&G Authorized Dealer."
Available now at Laylax is the GIGA TEC PSE Lipo CMG Connector For Marui MP7. This allows you to use a Lipo Battery to power the compact AEG... "A conversion connector that can operate Tokyo Marui electric compact machine gun series (electric CMG) with a lipo battery.
The metal terminals in contact with the gun body side contacts are boron-plated for excellent conduction efficiency and wear resistance, and the compact and highly versatile BEC type connector is used for connecting to the battery.
Another Li-poly battery ready JG M733 chalked up by Evike.com... "This is a customized JG M733 Commando with reinforced gearbox, reinforced motor, reinforced gear set, one piece barrel and tight bore barrel to shoot 440~460 F.P.S. out of the box. Because it was done with the best technician team exclusively for Evike.com, the reliability and performance is superb!