1. Introduction and Overview
The NiteCore Intellicharger I4 is a universal, automatic smart-charger compatible with almost all types of rechargeable batteries, thus eliminating the need to own several chargers. Each of its four microcomputer-controlled charging slots is capable of monitoring and charging batteries independently.

Image 1.1: The NiteCore Intellicharger I4 V2, a universal 4-channel smart battery charger.
2. Key Features
- Capable of charging 4 batteries simultaneously.
- Each of the four battery slots monitors and charges independently.
- Compatible with a wide range of rechargeable batteries including Li-ion (26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340 (RCR123), 14500, 10440), Ni-MH, and Ni-Cd (AA, AAA, AAAA, C).
- Optimized charging design for IMR batteries.
- Features three charging modes: Constant Charge Current (CC), Constant Charge Voltage (CV), and Trickle Charge.
- Automatically detects battery status and selects the appropriate voltage and charge mode.
- 3-color LED displays charging progress for each battery.
- Automatically stops charging when complete.
- Features over-charge prevention to protect batteries.
- Features temperature monitoring to prevent overheating.
- Made from durable ABS (fire retardant/flame resistant) materials.
- Features reverse polarity protection.
- Designed for optimal heat dissipation.
- Lightweight and compact for easy portability.
- Compatible with AC 100-240V and DC 12V 1A input, suitable for worldwide use.

Image 2.1: Key features of the 2014 New Version Intellicharger I4, including fire retardant materials and intelligent circuits.
3. Setup
To set up your NiteCore Intellicharger I4 V2, follow these simple steps:
- Connect the provided power cord to the charger's input port.
- Plug the other end of the power cord into a suitable AC 100-240V electrical outlet. Alternatively, for DC 12V input, connect a compatible 12V DC power source.
- The blue power indicator light on the charger will illuminate, indicating it is ready for use.

Image 3.1: The charger's input ports, designed for both indoor (AC) and travel (DC 12V) use.
4. Operating Instructions
The Intellicharger I4 V2 is designed for simple and automatic operation:
- Inserting Batteries: Gently slide compatible rechargeable batteries into the charging slots. Ensure correct polarity by aligning the positive (+) and negative (-) ends of the battery with the corresponding markings on the charger. The spring-loaded negative posts will adjust to accommodate various battery sizes.
- Automatic Detection and Charging: Once a battery is inserted, the charger will automatically detect its type (Li-ion, Ni-MH, or Ni-Cd) and current status. It will then select and apply the appropriate charging mode (CC, CV, or Trickle Charge).
- LED Indicators: Each charging slot has a 3-bar LED display (yellow) that indicates the charging progress.
- Blinking yellow LEDs indicate that the battery is actively charging. The number of solid yellow bars indicates the current charge level.
- When all three yellow LEDs for a slot are solid (not blinking), the battery in that slot is fully charged.
- Charging Completion: The charger automatically stops charging when the batteries reach full capacity, preventing overcharging and prolonging battery life.
- Removing Batteries: Once charging is complete (solid yellow LEDs), carefully remove the batteries from the slots.

Image 4.1: Detailed view of the pure copper battery contact elastic plates, designed for precise charging and smooth battery insertion.
5. Compatible Battery Types
The NiteCore Intellicharger I4 V2 is compatible with a broad range of rechargeable battery chemistries and sizes:
- IMR/Li-ion: 26650, 22650, 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 10440
- Ni-MH/Ni-Cd: AA, AAA, AAAA, C

Image 5.1: The product packaging illustrating the wide range of compatible battery types.
6. Specifications
| Input Voltage | AC 100-240V 50/60Hz 0.35A (MAX) or DC 12V 1A |
| Output Voltage | 4.2V ±1% / 1.48V ±1% |
| Output Current (MAX) | 0.375A*4 / 0.75A*2 |
| Dimensions (LxWxH) | 138mm x 95mm x 36mm (5.5 x 4 x 4 inches) |
| Weight | 184g (0.5 Pounds) (without batteries and power cord) |
| Color | Black |
| Manufacturer | Light Junction |
| Part Number | LEPAZD694 |
| Date First Available | April 16, 2012 |

Image 6.1: A visual representation of the NiteCore Intellicharger I4 V2's key specifications.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your charger:
- Keep the charger clean and dry. Use a soft, dry cloth to wipe down the exterior.
- Avoid exposing the charger to extreme temperatures, direct sunlight, or high humidity.
- Do not leave batteries in the charger for extended periods after they are fully charged. Remove them promptly.
- Unplug the charger from the power outlet when it is not in use.
- Periodically inspect the power cord for any signs of damage.
8. Troubleshooting
If you encounter issues with your NiteCore Intellicharger I4 V2, consider the following:
- Charger not powering on: Ensure the power cord is securely plugged into both the charger and a functional electrical outlet. Check if the outlet itself is working.
- Battery not charging:
- Verify that the battery is inserted with correct polarity (+ and -).
- Confirm that the battery type is compatible with the charger (refer to Section 5).
- Clean the battery contacts and the charger's contacts with a clean, dry cloth to ensure good electrical connection.
- If one slot is not working, try the battery in a different slot to isolate the issue.
- Overheating: The charger features temperature monitoring to prevent overheating. If the unit feels excessively hot during operation, disconnect it immediately and allow it to cool in a well-ventilated area. Ensure the charger is not covered or placed in an enclosed space during use.
9. Safety Information
Please read and adhere to the following safety guidelines to prevent injury or damage:
- Do not attempt to charge non-rechargeable batteries. This can lead to explosion, rupture, or leakage, causing personal injury or property damage.
- Do not disassemble, modify, or short-circuit the charger.
- Keep the charger and batteries out of reach of children and pets.
- Use only with compatible battery types as specified in this manual.
- Avoid dropping or subjecting the charger to strong impacts.
- Do not expose the charger to water or other liquids.
- The charger is constructed from durable ABS (fire retardant/flame resistant) materials for enhanced safety.
- It includes reverse polarity protection to prevent damage if batteries are inserted incorrectly.
10. Warranty and Support
For detailed information regarding the product warranty, technical support, or service inquiries, please refer to the official Nitecore website or the product packaging. Contact information for customer service is typically provided in these resources.







