Keenstone 9.6V 1600mAh Butterfly Nunchuck Stick Mini Battery Pack with Mini Tamiya Connector for Airsoft Guns ICS CA TM SRC JG G36 G&M733 etc

13 year airsoft veteran take on this battery pack I have been playing airsoft since 2003. I own 8 AEG and 9 GBB in my personal collection. Been upgrading and repairing AEGs for since then.There will be those who say a battery is a battery. All batteries are sold with two ratings – nominal voltage output and storage capacity usually in milliamps (mAh). With all thing being equal, they all will do what the battery packs are designed to do. While this is true in terms of providing electricity, there is a difference in the amount of “push” that a battery can give. This battery from Keenstone tries to advertise their battery pack as having more “push” than other brands.I was running this battery pack in an upgraded Classic Army G36K running a M120 spring, which is good for 380-405 fps. Compared to the usual Intellect 9.6v 1600 mAh battery pack, I really could not tell much of a difference. Both brands are considered premium batteries so you could not go wrong with either. However the Keenstone is about 5-10% less expensive.During a 3 hour indoor CQB session, the Keenstone performed flawlessly. The rate of fire (ROF) seemed on par with the Intellect at about 14 shots per second in full auto.PROS: flexible wire leads, solid solder joints, clean shrink wrap, and insulation end caps.CONS: none at this time. Will update if run into problems.BOTTOMLINE: would I recommend this battery pack? Sure you can’t go wrong. Not sure if there is any warranty as most of these kinds of products don’t provide coverage since there are too many variables of potential abuse or misuse. 43 people found this helpful