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Klarus K1 Single Bay Smart Battery Charger for Li-ion , NiCd, and NiMH - Fits 10440, 14500, 16340, 17500, 17670, 18350, 18490, 18650, 22650, 26650, AA, AAA, AAAA, C

Brand: Klarus
Brand: Klarus

Klarus K1 Smart Charger

Capable of Charging Nearly Every Kind of Rechargeable Battery!

One of the most versatile chargers on the market, the Klarus K1 Smart Charger is the perfect combination of power and portability. Less than 5 inches in length and weighing just over 2 ounces, this single-bay charger is able to charge a wide variety of Li-Ion batteries, such as 18650 and 16340 cells, as well as AA, AAA, AAAA and C sizes of Ni-MH and Ni-Cd batteries. The K1 features an easy-to-understand LED display where the user can monitor the charging progress of the inserted battery and allows him to choose between a 0.5 Amp and a 1.0 Amp charging current. The sophisticated charger also features an auto-activation function for short-circuit protected Li-Ion batteries that have been over-discharged, as well as -DV/dt Control technology that allows Ni-MH and Ni-Cd batteries to charge more fully. Crafted from flame-resistant ABS plastic and designed for optimal heat dissipation, this charger is as safe as it is effective!


  • Made from durable, fire-retardant ABS plastic
  • LED display clearly shows charging progress of installed battery
  • User able to choose desired output charging current (0.5A or 1.0A) to better fit their needs
  • Features auto-activation function
    • Automatically reactivates "zero-voltage" short-circuit protected Li-Ion batteries that have been fully discharged
    • Will not charge a battery that can't be reactivated
  • DV/dt Control technology allows Ni-MH and Ni-Cd batteries to charge more fully
  • Overcharge protection to prevent damage to the battery
  • Built-in reverse polarity and short-circuit protection for safer charging
  • Optimal heat dissipation prevents charger from overheating from extended use
  • Comes with micro-USB charging cable


  • Input: Micro-USB DC 5V / 1A
  • Output Voltage: 4.35V / 4.2V / 3.65V / 1.48V ±1%
  • Output Current: 0.5A or 1.0A
  • Compatible with:
    • Li-Ion (3.7V-3.85V) / LiFePO4: 26650, 22650, 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 10440
    • Ni-MH / Ni-Cd: AA, AAA, AAAA, C
  • Dimensions:
    • Length - 4.53" (115 mm)
    • Width - 1.46" (37 mm)
    • Height - 1.26" (32 mm)
  • Weight: 2.19 oz. (62 g)
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