NITECORE CI4 CHARGER (USB-C 3A 18W)

A four-bay USB-C charger you can run off your power bank, anywhere.

Top up four 18650, 21700, AA or mixed cells from a power bank, laptop or wall adapter, with up to 3A into a single slot.

• 4 independent slots, charge up to 4 batteries at once
• Up to 3,000mA into one slot in Fast Charge Mode
• USB-C input at 18W, with QC and PD fast-charge support
• Works with Li-ion, IMR, Ni-MH and Ni-Cd cells from 10440 to 26700, plus AA, AAA, C and D
• Powered by power banks, solar panels, laptops or USB wall adapters
• Per-slot LEDs show charge level and mode at a glance
• 191.4g and 148mm long, sized to travel with your kit

Up to 3A into a single battery.

In Fast Charge Mode the Ci4 puts up to 3,000mA into one slot, so a high-drain 21700 is ready again in a fraction of the time a basic charger takes. Roughly 35 minutes to take a 3,500mAh cell from 30% to 80%.

Fill all four slots and each runs at up to 750mA, so a full set of 18650s charges together overnight and is ready by morning.

USB-C in, so it charges wherever you do.

The single USB-C port takes power from almost anything with a USB output. Run it off a 20,000mAh power bank at camp, your laptop on a train, a wall adapter at the hotel, or a folding solar panel in the field.

The plug is reversible, so it goes in the right way every time. One charger handles a whole set of cells at home and on the road.

Fast Charge Mode from QC and PD sources.

Plug the Ci4 into a Quick Charge or Power Delivery adapter or power bank and it steps up to Fast Charge Mode, reaching that full 3,000mA into a single slot. The 18W input draws from 5V, 9V or 12V sources.

One charger for almost every cell you own.

The Ci4 handles Li-ion and IMR cells from the tiny 10440 up to the 26700, alongside Ni-MH and Ni-Cd in AA, AAA, AAAA, C and D. A charging program tuned for IMR cells watches the whole cycle and holds the cut-off voltage within safe limits.

All four slots charge on their own terms.

Every slot is controlled independently, so you can run a 21700, an 18650, a 14500 and an AA together and each gets the right treatment. The Ci4 detects each battery, then picks between three charging modes, CC, CV and -dV/dt.

A quick look tells you where each cell stands.

Every slot has its own row of indicator LEDs. A constant red light means the slot is in Fast Charge Mode, and the green lights show roughly how full the battery is.

Built to charge safely, trip after trip.

Cooling fins along the body pull heat away as four cells charge at once, and the casing is moulded from durable, fire-retardant PC. Reverse-polarity and short-circuit protection guard against a cell slotted the wrong way. Overtime protection ends the charge if a cycle runs long.

CHARGING CURRENT

Fast Charge: x1 3,000mA | x2 1,500mA | x3 1,000mA | x4 750mA

Standard: x1 2,000mA | x2 1,000mA | x3 700mA | x4 500mA

COMPATIBLE BATTERIES

IMR/Li-ion: 10440, 14500, 14650, 16340 (RCR123), 16500, 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 21700, 22500, 22650, 25500, 26500, 26650, 26700

Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D

TECHNICAL SPECIFICATIONS

Slots: 4 (independent)

USB-C Input: 5V-2A / 9V-2A / 12V-1.5A, 18W (max)

Fast Charge Input: QC and PD supported

Output Voltage: 4.2V±1% (Li-ion) / 1.48V±1% (Ni-MH/Ni-Cd)

Max Single-Slot Current: 3,000mA

Charging Modes: CC, CV and -dV/dt (auto-selected)

Indicators: Per-slot LEDs (red Fast Charge, 3 green charge level)

Casing: Fire-retardant PC with cooling fins

Dimensions: 148mm x 105mm x 37mm (5.83" x 4.13" x 1.46")

Weight: 191.4g (6.75 oz)

What's In The Box

1x Nitecore Ci4 Charger - intelligent USB-C four-slot charger

A USB-C cable is not included. Use any USB-C cable rated for up to 18W charging.

Sold per UNIT.