... MarsFire 18650 3.7V 2000mAh Protected Rechargeable Li-ion Battery high quality competitive price * Brand Name: MarsFire* Model: 18650* Capacity: 2000mAh* Voltage: 3.7V* Type: Li-Ion * No ... , small internal resistance, discharge time is long; battery quality and reliable performance, enough power, battery mantle cardboard packaging, when used with high ...