Nitecore New i4 Charger

The Nitecore NEW i4 features 100% Charging Acceleration, Active Current Distribution (ACD), expanded compatibility for 3.7V and 4.35V batteries, IMR Battery Restoration, automatic current and voltage selection, reverse polarity protection, and an overcharging timeout for safety. It can charge up to four batteries simultaneously, from small cells like 10340 to large 26650 and 21700, with a maximum output of 1500mA in one slot.

Key Features

• 100% Charging Acceleration: Charges batteries at up to 1500mA in a single slot, a significant speed increase over the previous model.
• Active Current Distribution (ACD): Dynamically distributes power among charging slots, sending all available current to remaining batteries once one finishes charging, ensuring faster charging.
• Expanded Compatibility: Charges a wide range of batteries, including 1.2V (Ni-MH/Ni-Cd), 3.7V (Li-ion), and 4.35V (Li-ion) cells, as well as 20700 and 21700 batteries.
• IMR Battery Restoration: Can restore 0V depleted IMR batteries to working condition.
• Automatic Current & Voltage Selection: Automatically selects the appropriate charging current and voltage based on the battery capacity and type.
• Three-Color Charging Status Display: Uses a simple LED display to indicate charging status.
• Safety Features: Includes reverse polarity protection, overcharging timeout protection, automatic detection of non-rechargeable batteries, and features temperature monitoring to prevent overheating.

Specifications

• Battery Types: Li-ion, IMR, LiFePO4 (10340 to 26650), and Ni-MH/Ni-Cd (AA, AAA, C, D, etc.).
• Input: AC wall outlet and 12 VDC car charger.
• Max Output: 1500mA in one slot.
• Charging Modes: Utilizes CC (Constant Current), CV (Constant Voltage), and dV/dt charging programs.
• Compatibility: Supports cell sizes from 10340 up to 26650, including 20700 and 21700.

Step-by-Step Instructions

1. Connect Power:
2. Plug the Nitecore NEW i4 into a power source using the provided power cord or vehicle adapter.
3. Perform Self-Test:
4. All four LEDs on the charger will illuminate briefly during a quick self-test.
5. Insert Batteries:
6. Place rechargeable batteries (3.7v Li-ion or 1.2V Ni-MH/Ni-Cd) into the four independently controlled charging slots.
7. Match Polarity:
8. Ensure the positive (+) and negative (-) ends of the battery match the corresponding symbols on the charger.
9. Begin Charging:
10. After a few seconds, charging will begin automatically.
11. Monitor Charging Status:
12. Three yellow LED indicators in each slot will display the battery status, blinking to show the charging level.

Troubleshooting & Advanced Features

• Reverse Polarity:
  • If the status lights blink rapidly, a battery is inserted backward or a non-rechargeable battery was inserted. Reposition the battery correctly.
• Error Detection:
  • The charger automatically detects non-rechargeable batteries, short-circuits, or reverse-polarity insertions, halting charging and blinking all LEDs.
• Manual Adjustment (for high-capacity Li-ion):
  • To select a specific charging channel, press the C button.
  • To adjust the charging current for that selected channel, press and hold the C button.
  • The charger can automatically select the appropriate current, but this allows for optimization.
• Important Precautions
  • Only charge Li-ion, IMR, LiFePO4, NiMH, or Ni-Cd rechargeable batteries.
  • Do not charge any other types of batteries to avoid leakage, rupture, or explosion.
  • Do not disassemble or modify the charger.
  • Always unplug the charger before performing maintenance or cleaning.