Mast T1 wireless tattoo battery is super lightweight only 53g, and 1350mAh capacity, can work 3-5 hours with any tattoo pen machine. This short battery is 50mm length.
Made of aluminium alloy frame and high quality insulating plastic Mini portable, light weight.
The interface of T1 is a standard RCA connection. Fits for all standard RCA connection rotary tattoo pen machines for liner and shader.