This battery charger is one of the most convenient and versatile on the market. At less than 4 inches in length, this pocket-sized single channel battery charger is capable of charging a wide variety of Lithium-Ion batteries, from popular sizes like 16340 and 18650 to less common ones like 17335 and 18490. When installed with a Li-Ion battery, the F1 also doubles as a portable power bank, charging devices via its USB port output. All battery sizes fit securely in the charging bay thanks to the included rubber band, which keeps the battery in place even when it is being carried around. The charger is made of durable, fire retardant ABS plastic, making it safe to use whether you're charging your battery or your device.

*Micro-USB cable (sold separately) required for use.

Features:

• Automatic battery and power level detection ensures appropriate charging voltage and mode selection
• When equipped with Li-Ion cell, charger doubles as a power bank with USB output
• Three power indicators display charging/discharging status of the installed battery
• Instant battery voltage indication upon installation
• Reverse polarity protection prevents damage caused by improperly inserted batteries
• Crafted from ABS fire retardant plastic for safer use
• Optimized for IMR charging circuit
• Includes rubber band to hold installed battery in place

Specifications:

• Input Voltage / Current: DC 5V, ≥500mA
• Output Voltage: 4.2V ± 1% (Slot), 5V ± 5% (USB)
• Output Current 1.0A (Slot), 1.0A (USB)
• Compatible With: 26650 / 18650 / 17670 / 18490 / 17500 / 17335 / 16340 (RCR123A) / 14500 / 10440
• Dimensions:
  • Length - 3.43" (87.2 mm)
  • Width - 0.94" (24 mm)
  • Height - 1.15" (29.3 mm)
• Weight: 1.07 oz (Without Cord) (30.4 g)