Takes 4 standard size 18650 batteries side by side to form a compact battery of rechargeable
Keep your batteries organized and protected
Battery not included you can buy it from here
Battery type: 3Pcs 18650 Case Holder
Net weight: 20gm
18650 3 Tank Rechargeable Battery Holder
A battery holder is one or more compartments or chambers for holding a battery. For dry cells, the holder must also make electrical contact with the battery terminals. For wet cells, cables are often connected to the battery terminals, as is found in automobiles or emergency lighting equipment. Where the battery is expected to last over the life of the product, no holder is necessary, and a tab welded to the battery terminals can be directly soldered to a printed circuit board. A good choice for you!