Review on 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: Compact and Powerful Battery Solution by Jeremy Meyer

Playing Airsoft since 2003. There are 8 AEGs and 9 GBBs in my personal collection. Since then I have been setting up and repairing AEG. There will be those who will say that a battery is a battery. All batteries are sold with two ratings - rated output voltage and capacity, usually in milliamps (mAh). Other things being equal, they will all do what batteries are designed to do. While this is true in terms of delivering power, there is a difference in the amount of "boost" a battery can provide. This battery from Keenstone tries to advertise its battery pack as more of a "push" than other brands. I used this battery in an upgraded Classic Army G36K with an M120 nib capable of 380-405 fps. Compared to a regular Intellect 9.6V 1600mAh battery I didn't notice much of a difference. Both brands are considered premium batteries, so you can't go wrong with either. However, Keenstone is about 5-10% cheaper. During a 3-hour indoor CQB session, Keenstone put on an impeccable performance. The rate of fire (ROF) was on par with the Intellect, at around 14 rounds per second in full auto mode. ADVANTAGES: Flexible wires, strong solder joints, clean shrink wrap, and insulating end caps. CONS: currently none. Will be updated if problems arise. BELOW INFO: Can I recommend this battery? Of course you can't go wrong. I am not sure if there is any type of guarantee as most of these products are not covered due to too many variables involved in possible misuse or abuse.