Klarus K2 USB Smart Battery Charger for LiFePO4, 3.7V/3.85V Li-ion, Ni-MH, Ni-Cd

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  • Regular price $28.95
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The Klarus K2 Smart Charger is a universal, dual-bay USB automatic smart-charger compatible with almost all types of rechargeable batteries and also doubles up as a power bank to charge other devices via USB with a Li-ion battery as the power. In addition to charging your batteries, it can also re-purpose them to serve as a heavy-duty power bank for your USB devices.


  • Compatible with:
    • LiFePO4, 3.7V/3.85V Li-ionNi-MHNi-Cd
    • Li-ion: 26650 22650 18650 18490 17670 17500 16340 14500 10440 16340 (RCR123A)
    • Ni-MH/Ni-Cd: AA AAA AAAA C
  • Choose from 0.5A or 1A charging current
  • Charges via micro USB
  • Output port for use as a power bank for USB devices
  • Optimized charging design for IMR batteries
  • DV/dt Control technology to charge Ni-MH and Ni-Cd batteries more fully
  • LED charging and discharging indicators
  • Displays charge level of Li-Ion batteries even if it's not plugged in
  • Digitally regulated charging
  • Features over-charge protection to prevent battery damage. Automatically stops charging when complete
  • Short circuit, over-current and over-voltage protection
  • Reverse polarity protection
  • Made of durable ABS (fire retardant/flame resistant) for your safety
  • Optimal heat dissipation design for long lifespan


  • Charging Bays: 2
  • Max Charge Current: 1.0A
  • Output Voltage : 4.35V/4.2V/3.65V/1.48V ±1%
  • USB port output: 5V/1A
  • Dimensions:
    • 115mm x 63.5mm x 29mm
    • Weight: 75 grams

Packaging Includes

  • 1 x K2 smart charger

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