Nitecore F2 Dual Slots Portable Flexible Power Bank Outdoor Li-ion/IMR Battery Charger

Specification: Product name: Nitecore F2 Dual Slots Power Bank Charger Input: DC:5V 0.5A (USB compatible) Output voltage: 4.2V1% (Battery) / 5V5% (USB) Output current: USB 2A MAX Battery: 21A MAX Compatible with: Li-ion / IMR: 26650 / 18650 / 17670 / 18490 / 17500 / 17335 / 16340 / (RCR123) / 14500 / 10440 Dimensions: 3.7" 1.73" 0.98"(94mm44mm25mm) Weight: 1.64oz (46.5g,without power cord or batteries) Features: Compatible with cylindrical rechargeable Li-ion batteries of various sizes Intelligent USB charging and regulation control circuit Battery charging and discharging capability Universal micro-USB 3.0 input port, accelerated charging rate up to 1A each bay USB output up to 2A Charge two batteries simultaneously and independently Built-in power indicators display battery status Automatic power detection and voltage reporting upon battery installation Optimized IMR battery charging Automatic identification for batteries of different types and proceed with appropriatecharging current and mode Reverse polarity protection and anti-short circuit protection Made from fire retardant PC materials Optimal heat dissipation design Package included: 1 x Nitecore F2 Dual Slots Power Bank Charger 1 x 2 x Rubber band 1 x USB Cable