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i4 Charger

i4 Charger

  • 17 remaining
i4 Charger (4 slots)

Ultrafast 1500mA Charger. As Simple as Insert, Detect, and Charge.

This charger works with nearly all types of rechargeable batteries. It automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries to apply the right charging mode (Constant Charge Current (CC), Constant Charge Voltage (CV) and Trickle Charge).

Each microcomputer-controlled charging slot is capable of monitoring and charging batteries independently. Red, yellow and green lights clearly show battery status and charging progress.

How fast does it charge?
Battery Type (Capacity) One at a time
Two at a time
Four at a time
18650 (3500mAh) 2hr 20min 4hr 36min 9hr 20min
18650 (2600mAh) 1hr 44min 3hr 28min 6hr 56min
RCR123 (650mAh) 1hr 18min 1hr 44min
Eneloop AA (2000mAh) 1hr 20min 2hr 40min 5hr 20min
Eneloop AAA (800mAh) 1hr 36min 2hr 8min

Charging duration uses this formula:
Battery Capacity (mAh) / Charger Output Current (mA) = Hours

Advanced Features
  • Automatic and manual charging program selection
  • Active Current Distribution (ACD) system: Detects and distributes available power to optimize charging in both bays
  • Charging program optimized for IMR batteries
  • Two independent charging bays: Separate spring-loaded sliders accept different battery sizes and ensures a secure connection
  • Automatic current selection based on battery capacity
  • Automatically detects battery power status and displays charging progress
  • IMR lithium-ion battery activation: Activates fully depleted lithium-ion batteries with protective circuit
  • IMR battery recovery

  • Automatic detection of non-rechargeable lithium batteries
  • Automatically stops charging upon charging completion to prevent battery overcharging
  • Reverse polarity protection prevents damage to battery if installed incorrectly
  • Short circuit prevention
  • Overtime charging protection: Stops charging after 10 hours to prevent damage to battery due to excessive heat
  • Certified by RoHS, CE, FCC, and CEC
  • Made from fire retardant and flame resistant polycarbonate
  • Engineered with heat-dissipating fins to help maintain low charger temperature

What's in the box
  • i4 Charger (2016 Edition)
  • 3 pin UK plug and cable
  • Instruction sheet

Battery Bundles
  • i4 charger (without batteries) - $59
  • i4 charger + 4x NL1826 (2600mAh) batteries - $175
  • i4 charger + 4x NL1835HP (3500mAh) batteries - $255

Input voltage AC 100~240V 50/60Hz 0.25A(max) 10W
DC 9~12V 1A
Output voltage 4.35V±1%/4.2V±1%/ 3.7V±1%/1.48V±1%
1.5A ×1 / 0.75A×2 / 0.5A×2 / 0.375A ×4
Output current 1500mA
Length 138mm
Width 95mm
Height 36mm
Weight 184g (without batteries and power cord)
Compatible with
Li-ion / IMR / LiFePO4: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500,18650, 18700, 20700, 22500, 22650, 25500, 26500, 26650
Ni-MH / Ni-Cd: AA, AAA, AAAA, C, D
"The new second edition of the i4 Intellicharger from Sysmax appears to live up to the initial promise of this model. It successfully charged all manner of cells that I threw at it, with performance generally consistent with its specifications."

Read full review...
by Selfbuilt (CPF)

"This charger uses a CC/CV charging profile, this is the recommended way to charge LiIon batteries. The charge current is a good compromise for handling many battery sizes with only one current setting. I will call it a good universal charger."

Read full review...
by HKJ (CPF)

What happens after payment?

  • You will receive a purchase receipt through Paypal after payment.
  • Your order will be processed within the next working day and we will email you a tracking code once your package has been shipped.

When will I receive my lights?

  • Deliveries in Singapore will take up to 4-6 working days by courier.

Returns and warranty

  • If our lights don't work the way they should, let us know and we'll do our best to get you sorted. 5-year repair warranty.

User manual

We believe in this product so strongly that we're giving you a 60 days money back guarantee! If for whatever reason you are unsatisfied with your purchase, ship the entire package back to us with your Order #number and we'll give you a full refund!
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Customer Reviews

Based on 16 reviews
Chee Chau Wee
New i4 charger

Wonderful and affordable. Able to revive my dead A2 batteries too.

Mun Jun Yeong
Awesome Charger

This is my second nitecore charger, bought it cause the first unit could only charge 2 at a time so this is an upgrade!

Chin T.


Premal P.
Works as described though It

Works as described though It took a little while to detect the battery type.
Works well with CR123A. AA. And 18650 batteries.

Kelvin Chung
Great product! Should use their

Great product! Should use their chargers for all your rechargeable batteries

San W.
Excellent product~~~From all the chargers

Excellent product~~~From all the chargers that I have....their product is the best...

Shawn T.
excellent. this charges your batteries

excellent. this charges your batteries with the power of the gods themselves.

Desmond F.
just works and small and

just works and small and versertile enough.

Muhammad Nur Ismail
Charges fast and accurately

Charges fast and accurately

Lim H.
Very efficient in delivery....

Very efficient in delivery....

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