It worked well to charge the 18650 batteries I got up and readout was clear to understand the charge level.
Experience cutting-edge charging capabilities with the Nitecore UM2, a versatile dual-slot battery charger designed to cater to a wide range of battery types and sizes. Equipped with a bright digital LCD display, the UM2 offers real-time charging information, enhancing your charging experience. Its intelligent USB-C charging system and quick charge capability make it an efficient tool for maintaining your batteries in optimal condition. Whether you're at home or on the go, the UM2 ensures your batteries are safely and quickly charged, ready for use whenever you need them.
- High-Speed Charging: Features a maximum charging speed of 1.5A in QC Mode, allowing for rapid and efficient battery charging.
- Smart Compatibility: Comfortably fits and charges 20700 and 21700 batteries, as well as other Li-ion and Ni-MH/Ni-Cd batteries with automatic detection and selection of charging mode.
- Advanced Safety Features: Built-in protections against short circuits, overcharging, and improperly inserted batteries ensure a safe charging environment.
- Intuitive Display: The energy-efficient LCD display provides essential real-time information on the charging process, including voltage, current, and charging time.
- Independent Slot Control: Capable of charging two batteries simultaneously while managing each slot independently to optimize the charging process.
Compatible with:
Lithium Ion IMR or LiFePO4 Batteries:
0440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490,18500, 18650, 18700, 20700, 21700, 22500, 22650,25500, 26500, 26650, 26700
NI-MH / NICD:
AA, AAA, AAAA, C, D
Technical Info:
- Input: DC 5V/2A 9V/2A 18W (MAX)
- Output: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
- Output current: QC Mode: 1,500mA*2 (MAX) Standard Mode: 1,000mA*2 (MAX)
- Dimensions: 152mm x 73mm x 40mm
- Weight: 148.3 gram (without batteries or power cord)
- SIZE/TYPE COMPATIBILITY - ✔ 18650 ✔ 20700 ✔ 21700
- Nitecore UM2 battery charger
- Micro USB-C cord
- User Manual
- Scratch-off validation serial number
⚠ Important Safety Warnings
Improper use of a battery charger can result in overcharging, short circuits, or damage to the battery, causing FIRE, EXPLOSION, or ELECTRICAL SHOCK. Users must follow all safety guidelines to ensure proper operation. Click here to review the full safety guidelines.
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Device Compatibility:
- Use the charger only for compatible battery types and sizes as specified by the charger manufacturer. Ensure the charger is appropriate for the battery chemistry, size, and protection status (e.g., unprotected or protected cells).
- Do not charge non-rechargeable batteries (e.g., alkaline or primary cells).
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Proper Use:
- Only charge batteries in a fireproof or non-flammable area. Avoid charging on beds, couches, or other flammable surfaces.
- Do not force a battery into the charger slot if it does not fit properly. This can damage the charger or battery and may result in unsafe charging conditions.
- Inspect batteries before charging: Do not charge if the battery casing, wrapper, or terminals are damaged, dented, leaking, or bulging.
- Never leave batteries unattended while charging. Monitor the charging process, and unplug the charger when charging is complete.
- Avoid exposing the charger to liquids, high heat, or direct sunlight.
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Inspection:
- Do not use the charger if the power cord, plug, or device is damaged.
- Inspect both the charger and the battery for any signs of damage before use.
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Storage & Handling:
- Keep the charger away from children and pets.
- When not in use, unplug the charger and store it in a cool, dry place.
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Prohibited Activities:
- Do not modify or disassemble the charger.
- Do not attempt to repair a damaged charger—replace it with a new one.
- Avoid using extension cords or adapters that exceed the manufacturer’s recommendations.
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Emergency Response:
- If the charger or battery emits smoke, sparks, or a burning smell, disconnect the power immediately and move the battery and charger to a safe area.
- In case of fire, use a Class D fire extinguisher or sand to extinguish the flames.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Battery chargers must only be used with compatible battery types and operated in accordance with manufacturer instructions. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to their customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.