Nitecore Ci2 Dual-Slot USB-C Battery Charger for Li-ion, Ni-MH Batteries

The Nitecore Ci2 is a two-slot battery charger designed for a range of rechargeable cells. It is compatible with both Li-ion (Lithium-ion) batteries, including popular sizes such as 18650 and 21700, and Ni-MH/Ni-Cd batteries (Nickel-metal Hydride/Nickel-cadmium). This versatility allows it to charge different battery types commonly used in vaping devices and other electronics.

The charger incorporates an optimized IMR battery charging program. This program monitors the entire charging cycle to help ensure that the cut-off voltage remains within safe limits. This precise management aims to contribute to the extended lifespan of the compatible batteries.

Equipped with a USB-C charging port, the Ci2 can support a maximum input current of 3000mA when charging a single battery, or 1500mA per slot when charging two batteries simultaneously in Fast Charge Mode. This higher current capability can reduce the time required to fully charge compatible batteries compared to lower-current chargers. The USB-C port is reversible, simplifying connection, and automatically detects Quick Charge (QC) or Power Delivery (PD) input. This allows the charger to draw power from various sources, enhancing flexibility for users, especially in situations where standard power outlets are not available.

The Nitecore Ci2 features a dual external protection system. This system is designed to provide both efficient heat dissipation and durability, making the charger suitable for use in varied environments. The charger is constructed from durable, fire-retardant PC materials for enhanced safety.

Safety features include reverse polarity protection, which prevents damage if a battery is inserted incorrectly, and short circuit prevention. The charger automatically selects between three charging modes: Constant Current (CC), Constant Voltage (CV), and dV/dt, based on the battery type. It also automatically detects the battery’s power level and terminates charging once complete. An over-discharged Li-ion battery activation function can attempt to revive certain deeply discharged Li-ion cells. The device also includes an energy-saving function and straightforward power indication.

Specifications

• Input: QC/PD 5V-2A / 9V-2A / 12V-1.5A 18W (MAX)
• Independent Outputs:
  • Battery: 4.2V1% / 1.48V1%
  • Fast Charge Mode: 3,000mA1 MAX / 1,500mA2 MAX
  • Standard Mode: 2,000mA1 MAX / 1,000mA2 MAX
• Compatible Chemistries: IMR/Li-ion, Ni-MH/Ni-Cd
• Compatible Li-ion/IMR Sizes: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 21700, 22500, 22650, 25500, 26500, 26650, 26700
• Compatible Ni-MH/Ni-Cd Sizes: AA, AAA, AAAA, C, D
• Single Slot Max Output: 3000mA
• Charging Modes: Automatic selection (CC, CV, dV/dt)
• Safety Features: Over-discharged Li-ion battery activation, Reverse polarity protection, Short circuit prevention, Dual external protection
• Material: Durable fire-retardant PC materials
• Certifications: RoHS, CE, FCC, CEC
• Dimensions: 148 x 65 x 37mm (5.83 x 2.56 x 1.46)
• Weight: 120.4g (4.25 oz)

Package Contents

• 1x Nitecore Ci2 Battery Charger
• 1x USB-C Cable