Plastic Battery Storage Case Box Holder for 3 x 18650 Black with 6" Wire Leads Brand new and high quality. Battery type: 3 pcs 18650 Case Holder. 18650 Battery Holder Case with 6" leads for soldering / connecting. Takes 3 standard size 18650 batteries side by side to form a compact battery of 3.7V rechargeables. Keep your batteries organized and protected.