Small and compact portable design Dual slot for charging 18650 rechargeable batteries Reverse polarity protection 5V USB input to charge (2A minimum recommended) Overcharge protection, auto cut-off when charging complete One USB-A output for charging portable devices Output over-current and output short circuit protections 4 LED battery level and charging status indicator Input: DC 5V (2A minimum recommended for fast charging) Charging current 2A one battery or 1A each if two batteries installed USB pass-through function during charging to conserve battery life PACKAGE INCLUDES: 1 x HB-X2 dual slot 18650 Charger and Powerbank 1 x USB to Micro USB cable 1 x User Manual 1 x Storage Pouch