Specifications:
 
Support Model :18650 Battery
Shell material: Environmental PP
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
Size: 76*61*19mm
 
Package Included:
 
3 x 3 Slots 18650 Battery Holder Plastic Case Storage Box