1)For Li-ion 18650 11.1 V 2200mAh battery module 2)Voltage: 11.1V (working) 12.6V ( peak) 7.5V ( cut-off) 3)2200 mAh ( 24.4 wh) 4)Protection: One PCB (5A) installed with the battery pack and protects the battery from Overcharge (>12.6V) Overdischarge ( < 7.5 V) Over drain ( > 5 Amp) Short circuits 5)Dimension: 53.34 x 15.24 x 63.5 mm (Width x Thickness x Length) 6)Weight: 185 g 7)Application: Use for building battery pack for RC toy external battery etc. 8)Others: For details pls contact us through email