
Klarus K1-PRO battery charger with USB port
14500, 16340, 16650, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26650, 32650, AA, AAA, AAAA, C
On this page you’ll find a ranking of the best Battery chargers from Klarus. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.
The K1-PRO battery charger from Klarus is an advanced solution for charging lithium batteries. Equipped with microcomputer control, it enables intelligent and efficient charging that is both fast and safe. User-friendliness is enhanced by the USB-C port, which provides a flexible connection to various power sources. The charger is lightweight and suitable for use in temperatures ranging from 0 °C to 40 °C, making it ideal for mobile use. The integrated LED display keeps you informed about the current charging status, while safety features such as reverse polarity protection and short circuit protection help prevent battery damage. Additionally, the heat dissipation ensures a longer lifespan for both the device and the batteries by preventing overheating and overcharging.
- Microcomputer control for intelligent charging
- USB-C port for flexible use
- LED display for monitoring charging status
- Integrated safety features such as reverse polarity and short circuit protection
- Efficient heat dissipation to extend the lifespan of the device and battery.

Klarus K1-PRO battery charger with USB port
14500, 16340, 16650, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26650, 32650, AA, AAA, AAAA, C
3-in-1 battery holder, fast charger, and power bank! The K2A charger from Klarus is an elegant charging solution for your button cell batteries (18650, 20700, and 21700) that not only provides storage but also allows full access to their potential through its power bank function. If you want specialized batteries ready for use to power modern flashlights and devices, the K2A charger is the best choice.
Charging/discharging capacity: Two USB ports and two battery slots enable the charging or discharging of two high-performance batteries. Simply insert the battery into the adjustable pin system and secure it under a magnetic cover. With batteries, you can receive an 18W charge via the USB-C port or use it as a fast-charging power bank for your other devices through the USB-A and USB-C connections.
Benefit from the safety of the PD/QC3.0 certified design, which protects the electronics during lightning-fast charging sessions, whether for the K2A or the rest of your devices. The K2A also has the advantage of reviving batteries that have been over-discharged down to 0 volts, where most chargers cannot detect the low energy level. This allows for the repair of defective batteries, restoring them to full function and vitality.
Technical details:
- Dimensions: 132 x 58 x 28 mm
- Charge two batteries simultaneously: 3.6V/3.7 Li-ion/IMR/INR/ICR (max 78 mm), 18650 (non-flathead), 20700, 21700
- 6-layer circuit protection for reverse polarity, overcurrent, overvoltage, overcharging, and deep discharge
- Compatible with rechargeable button cell batteries (18650, 20700, and 21700)
- Revive function allows the reactivation of over-discharged batteries down to 0V
- Dual discharge capability enables simultaneous charging of two devices with the power bank function
Included:
- K1A charger
- 2x charging cables
- Bag
- 4x O-rings
- C-L adapter
- User manual
Warranty: 2 years.

Klarus Battery charger K2A for 2 batteries with 2 USB cables
18650, 20700, 21700, Chargers without battery
A control system allows each of the two battery slots to be charged individually. It can charge two batteries simultaneously (Ni-MH / Ni-Cd / LiFePO4 / 3.7V Li-Ion / 3.85V Li-Ion) such as Li-Ion 26650, 22650, 18650, 18490, 17670, 17500, 16340, 14500, 10440, and 16340 (RCR123A) as well as Ni-MH / Ni-Cd AA, AAA, and AAAA. An LED display provides a clear indication of the charging process. Optionally, an output charging current of 0.5A or 1A can be set. The charging cable features a DC 5V Micro-USB port for direct connection to a car charger, a computer USB port, or another USB charging plug for charging at home or on the go. It offers built-in protection against reverse polarity and short circuits, as well as overcharge protection to prevent battery damage. The charging process will automatically terminate when complete.
Package includes: 1x Klarus Smart Charger K2 charger.

Klarus Smart Charger K2 charger
14500, 18650, AA, AAA, AAAA, C, Chargers without battery
The Klarus PP20 Lithium-Ion Power Pack is a compact and powerful power bank with a capacity of 2,000 mAh. This power bank is ideal for on-the-go use and provides a reliable energy source for various electronic devices. Weighing only 56 grams, it is lightweight and portable, making it easy to store in a bag or backpack. The charging time is just 2.5 hours, allowing for quick recharging. The device features a USB-Micro port that ensures easy connectivity to most devices. Additionally, the power pack is designed for over 300 charging cycles, highlighting its durability. It operates in a wide temperature range from -10 °C to +60 °C, making it a versatile choice for different environments.
- High capacity of 2,000 mAh for reliable power supply
- Fast charging time of just 2.5 hours
- Durable with over 300 charging cycles
- Operates in a temperature range of -10 °C to +60 °C.
