Features:
4 independent battery slots, charge up to 4 * 18650 rechargeable batteries independently or simultaneously.
Dual USB (Universal Serial Bus) output (1A 2.1A), can charge 2 digital devices at the same time if batteries are inserted.
Built-in protective IC, protect your batteries against overcharge, short circuit etc.
LCD screen, display the current status of batteries capacity, voltage & current flow while charging.
Sliding cover design, convenient for the taking-out & installing of the batteries.
Save power, LCD backlight will automatically turn off without operation in 28s.