Airsoft batteries come in a variety of voltages, milliamps and sizes. It’s important to make sure to buy the right size and voltage battery for your AEG. 8.4V batteries are typically the stock battery that comes with AEGs. 8.4V batteries can be charged by the standard wall chargers that are usually included with an AEG, but it is recommended that you purchase a smart charger. Airsoft Megastore carries a wide selection of airsoft batteries, backed by our industry leading 110% LOWEST price guarantee!