It is recommended that customers purchase an extra airsoft battery or upgraded airsoft battery that lasts longer. We have the right 7.2v battery, 8.4v battery, 9.6v battery, and 11.1v lithium polymer Li-Po battery for your gun. The quality of battery will affect the performance and number of shots per charge. It is also recommended that a smart charger also be purchased to ensure a fast proper charge and long-lasting battery life.