Support Model :18650 Battery
Shell material: ABS fire, flame retardant, high temperature, color diversity and other materials for choice.
Metal spring: carbon steel nickel plating by NCAA salt spray test, stainless steel spring.
External: wire, welding pieces, pins, male and female buckle (3.7v button)
Terminal: copper nickel plating
Corn: nickel plated with copperv
1 x 4 Slots 18650 Battery Holder Plastic Case Storage Box