Airsoft battery question?

Most guns with LiPo ready gearboxes come with the LiPo connector as standard. It'd different to Large and Tamiya connector connections. With this connection, you already know it's LiPo ready. Now to upgrade you will need Various parts. The echo1 will probably shoot 330-340fps? This will most likely be with an M90 spring. Then for it to run on LiPo you will need to get an 110 spring, new gears, better motor (sytema magnum motor very good!) and i would recommend a tight bore barrel. You also should probably get a new piston and cylinder so they are stronger. This could be quite expensive. If you want it to run on 11.1v LiPo then it will be VERY expensive but, your gun should support a 7.2v LiPo as stock maybe a few mods but anything more, and your gun is gonna need a serious tune up. Hope this helped :D