This Top of the range battery holder case can hold four18650 battery which make 4*3.7V battery pack from alkaline cells.It could actually hold usual 18650 size batteries,either for alkascent or rechargable batteries, the pin design is excellent for easily soldering and connecting.
Battery Type: 4*3.7V 18650 Battery
Subject matter: Plastic and Mental
4* 4slots 18650 Battery Holder (Batteries don’t seem to be included)
4* Black Battery Straps
Top of the range battery holder case for simple soldering and connecting.
Battery Type: 4x 3.7V 18650 battery；Subject matter: Durable plastic and metal.
Metallic spring for simple install and convenient for electric circuit DIY work.
Great items for keeping your usual or rechargable batteries in combination and protected.
Package includes: 4* 4slots 18650 battery case and four* black battery strap.