Internal high-performance 36V Lithium-Ion battery delivers 500 shots per full charge. Cordless design offers speed,safety and ease with no cumbersome power cords. Battery indicator light lets you know when to charge. Convenient bottom-load MAGAZINE for quick reloading, Staple viewing window lets you know when it's time to refill. Contact safety with non-marring nose for a flawless finish. The T50DCD cordless Electric staple gun features extraordinary power driven by an internal 3.6V Lithium-Ion battery that has No memory loss after charging. Delivering 500 full powered shots per full charge, this cordless powerhouse handles T50 staples up to 1/2-inch.