UNIVERSAL HUB 18650 x 2 Cell Battery Holder For Cell Lithium Battery Holder Box With DC PIN PACK OF 2

The 18650 x 2 Cell Battery Holder Box with DC Pin is designed to securely hold two 18650 lithium-ion rechargeable batteries (3.7 V each) and provide a convenient DC barrel jack output. The holder connects the batteries in series, delivering a combined output of approximately 7.4 V (nominal) to 8.4 V (fully charged).