Airsoft Atlanta go in stock Vengeance Li-Ion Batteries in different sizes and capacities, giving their customers options in choosing which brands to get their Li-Ion batteries from... "New 2000-2600mAh 7.4v and 11.1 Li-Ion batteries from Vengeance! Using Sanyo Japanese battery cells, these are a 15c rated output which vastly out power 20c lower mAh styles, plus has more endurance for longer games on the battlefield. Available in Tamiya and Deans connectors at $16.99 - $24.99. No frills solid batteries that are a nice update to your current arsenal. In stock and shipping now."