Ak700 battery

[Cyclops]

Here is a link to a decent Lipo and NIMH battery with balance charge available for your lipos as well. Use the coupon code to help knock the price down.
http://www.evike.com/products/41605/

[Payback]

i have a few of these batteries and they will need no change to the gun to run lipo as they have the small tamiya plug already.
http://hobbyking.com/hobbyking/store/__ ... _Pack.html

This charger is basic and works fine, but it's on backorder right now.
http://hobbyking.com/hobbyking/store/__ ... ouse_.html

this is the charger that i have and it will charge any and all batteries you'll use for airsoft.

http://hobbyking.com/hobbyking/store/__ ... ouse_.html

[Hawkeye [F.O.A.D.]]

The only thing I would add to this, is that IMO it is a requirement when using lipo batteries is to switch to deans connectors. The reason I say this is due to tamyia being prone to shorting out and having a poor connection, which is the main reason for lipo failure (fire, explosion ect.). deans eliminates that issue and for a $3 or less upgrade you cant go wrong.

[Junto]

Running a 7.4 lipo will not hurt your gun anymore than running a 9.6 nimh battery. When a company says lipo ready, that's what they are defaulting to, the 7.4v lipo. Any gun that uses a battery can run on a 7.4. Now the 11.1 is a different story.

This. This all day.