Description: 100% Brand New and High Quality. 18650 Battery Holder Case with 6" leads for soldering / connecting. Takes 1/2/3/4 standard size 18650 batteries side by side to form a compact battery of 3.7V rechargeables Keep your batteries organized and protected. Specification: Material:ABS Color:Black Original Box:NO Size: Battery Holder For 1x18650 3.7V: Approx. 78mm * 21mm * 21.5mm Battery Holder For 2x18650 3.7-7.4V: Approx. 78mm * 40mm * 21.5mm Battery Holder For 3x18650 3.7-11.1V : Approx. 78mm * 60mm * 21.5mm Battery Holder For 4x18650 3.7-14.8V : Approx. 78mm * 80mm * 21.5mm Weight: Battery Holder For 1x18650 3.7V: Approx.10g Battery Holder For 2x18650 3.7-7.4V : Approx.15g Battery Holder For 3x18650 3.7-11.1V : Approx.20g Battery Holder For 4x18650 3.7-14.8V : Approx.25g Pin: length Approx.3.5mm, longitudinal spacing:Approx.72.5mm (both edge-to-edge spacing) Mounting holes: Aperture Approx.3mm, longitudinal spacing Approx.55mm (Pitch is the distance center to center of aperture) Instructions for use: 1 single 18650 battery use 3.7V. 2 18650 battery, in parallel or in series to achieve 3.7-7.4V 3 18650 battery, in parallel or in series to achieve 3.7-11.1V 4 18650 battery, in parallel or in series to achieve 3.7-14.8V Attention: Size may be slight inaccuracy due to different batches of the products, or hand measurement; Color may be little different due to monitors. Please take real product as standard, thanks for your understanding! Package Includes: 1* 18650 Battery Storage Box Holder With Pin1Takes 1/2/3/4 standard size 18650 batteries side by side to form a compact battery of 3.7V rechargeables 218650 Battery Holder Case with 6" leads for soldering / connecting. 3Easy to install, you can easily to put the battery in it. 4You can use this case with your own battery to form power system supply. 5Lightweight, convenient to carry. Keep your batteries organized and protected.