NITECORE Ci4 Intelligent USB-C Four-Slot Superb Charger User Manual

NITECORE Ci4 Intelligent USB-C Four-Slot Superb Charger

IMPORTANT NOTICE CONCERNING WARRANTY SERVICE

Thank you for purchasing! Before using this charger, please find your verification code on the package box, and go to http://charger.nitecore.com/validation (or scan the QR code beside the verification code to visit on your mobile phone). Type in your verification code and personal information as required, and submit the page. After verification, Nitecore will send you a warranty service email. This email and your registration email address are essential to your possible warranty application. Before you complete the warranty service registration, you cannot enjoy our warranty service for your purchase.

Features

• Intelligent USB-C Four-Slot Superb Charger
• QC and PD input available
• Capable of charging 4 batteries simultaneously and controlling each slot independently
• Up to 3,000mA charging speed in a single slot
• Compatible with Li-ion and Ni-MH/Ni-Cd batteries with automatic detection
• Automatic detection of battery power level and automatic selection of the appropriate voltage and charging mode
• Automatic selection between 3 charging modes (CC, CV and -dV/dt)
• Automatic detection of large/small capacity batteries and automatic selection of appropriate charging current
• Automatic termination upon charging completion
• Reverse polarity protection and short circuit protection
• Over-discharged battery activation
• Overtime charging protection
• Made from durable and fire-retardant PC materials
• Optimal heat dissipation design
• Certified by RoHS, CE, FCC and CEC
• Insured worldwide by Ping An Insurance (Group) Company of China, Ltd.

Accessories

USB-C Charging Cable

Specifications

• Input: 5V⎓2A / 9V⎓2A / 12V⎓1.5A 18W (MAX)
• Output: 4.2V±1% / 1.48V±1%
  • Fast Charge Mode: 3,000mA1 MAX / 1,500mA2 MAX / 1,000mA3 MAX / 750mA4 MAX
  • Standard Mode: 2,000mA1 MAX / 1,000mA2 MAX / 700mA3 MAX / 500mA4 MAX
• Compatible with:
• IMR/Li-ion: 10440, 14500, 14650, 16500, 16340 (RCR123), 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
• Dimensions: 148mm x 105mm x 37mm (5.83″ x 4.13″ x 1.46″)
• Weight: 191.4g (6.75 oz) (Charging cable not included)

SYSMAX Innovations Co., Ltd.

TEL: +86-20-83862000
FAX: +86-20-83882723
E-mail: info@nitecore.com Web: www.nitecore.com Address: Unit 6355, 5/F, No. 1021 Gaopu Road, Tianhe District,
Guangzhou, 510653, Guangdong, China Manufacturer: SYSMAX Power Technology, LLC

Operating Instructions
Connect to Power Source:
Connect the Ci4 to an external power source (a USB adapter, a computer or other USB charging devices) via the USB charging cable.
Insert Batteries:
The Ci4 features 4 independently controlled charging slots. Insert batteries of supported types into each slot according to the polarity marks on the slot.
Battery Detection:
When inserting batteries, the Ci4 will detect and activate them before beginning the charging process.
During the charging process, the green indicators will flash to indicate the battery power level. If the charging current of the charging slot is over 1A, the red indicator will be steadily turned on to indicate the Fast Charge Mode. When the battery is fully charged, 3 green indicators will become steadily turned on.
Battery Inspection and Error Report:
The Ci4 has reverse polarity protection and anti-short circuit function. If there is a battery inserted with polar reversed or short-circuited, 3 green indicators and 1 red indicator will flash quickly to inform the user.
Smart Charging:
The Ci4 can choose appropriate charging currents based on intelligent detection about battery types and capacities. The Ci4 is compatible with:

1. 3.6V/3.7V Li-ion rechargeable batteries
2. 1.2V Ni-MH/Ni-Cd rechargeable batteries

Default Settings

Battery Type and Capacity

| Standard Mode Charging Current| Fast Charge Mode Charging Current
---|---|---
Charging

With 1 Slot

| Charging With 2 Slots| Charging With 3 Slots| Charging With 4 Slots| Charging

With 1 Slot

| Charging With 2 Slots| Charging With 3 Slots| Charging With 4 Slots

Li-ion batteries (4.2V±1% when fully charged)

| >1,000

mAh

| 2,000mA| 1,000mA| 700mA| 500mA| 3,000mA| 1,500mA| 1,000mA| 750mA
<1,000

mAh

| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA
Ni-MH/Ni-Cd batteries (1.48V±1% when fully charged)| AA/AAA| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA| 500mA
C/D| 1,000mA| 1,000mA| 1,000mA| 1,000mA| 1,000mA| 1,000mA| 1,000mA| 1,000mA

Note: The Ci4 can automatically select charging modes for Ni-MH/Ni-Cd batteries and 3.7V Li-ion batteries. For the battery whose length is >60mm (2.4”), the Ci4 will automatically identify its capacity as >1,000mAh.
Fast Charge Mode
The Ci4 is QC/PD input available. When the charger is powered by a QC/PD supportive device or connected to a QC/PD adapter, the single slot max output will achieve 3,000mA.
Over-Discharged Li-ion Battery Activation
The Ci4 is capable of activating over-discharged Li-ion batteries with a protective circuit. After battery installation, the Ci4 will test and activate the battery before charging. When a battery is detected as damaged, 3 green indicators and 1 red indicator of the corresponding slot will flash simultaneously to inform the user while the Ci4 will automatically cease the charging process of this slot.
Note: It is not recommended to use the Ci4 to charge the 0V (over-discharged) Li-ion batteries without a protective circuit, or it may cause fire and explosion.
Anti-short Circuiting and Reverse Polarity Protection
If there is a battery inserted with polar reversed or short-circuited, 3 green indicators and 1 red indicator of the corresponding slot will flash quickly to inform the user.
Energy Saving Function
All the indicators will be automatically off if there is no battery inserted into the slot.
Overtime Charging Protection
The Ci4 will separately calculate the charging time of each battery. When the uninterrupted charging time exceeds 10 hours in one slot, it will automatically cease the charging process of this slot and display a fully charged status. This is to prevent possible overheating or even explosion due to battery quality issue.

Precautions

1. The charger is restricted to charging Li-ion, IMR, Ni-MH/Ni-Cd rechargeable batteries only. DO NOT use the charger with other types of batteries as this could result in battery explosion, cracking or leaking, causing property damage and/or personal injury.

2. Moderate heat from this product is to be expected during the charging process, which is normal.

3. Ambient Temperature of Usage: -10~40℃ (14~104℉); Temperature of Storage: -20~60℃ (-4~140℉)

4. Carefully read all labels on the device to ensure batteries are installed correctly.

5. Please connect this charger to power supplies with the input voltage stated in the specifications of the user manual.
   If the input voltage is too low or too high, it may lead to malfunctions, or even a fire.

6. DO NOT charge batteries if there is any sign of faulty or short circuit.

7. The charger is only to be used by adults above 18 years old. Children under this age must be supervised by an adult when using the charger.

8. DO NOT leave the product unattended while it is connected to a power supply. Unplug the product at any sign of malfunction.

9. DO NOT attempt to charge primary cells such as Zinc-Carbon, Lithium, CR123A, CR2, or any other unsupported chemistry due to risk of explosion and fire.

10. DO NOT charge a damaged IMR battery as doing so may lead to charger short-circuit or even explosion.

11. DO NOT charge or discharge any battery having evidence of leakage, expansion/swelling, damaged outer wrapper or case, color-change or distortion.

12. Use the original adapter and cord for power supply. To reduce the risk of damage to the power cord, ALWAYS pull by the connector rather than the cord. DO NOT operate the charger if it appears damaged in any way.

13. DO NOT expose the device to direct sunlight, heating devices, open flames, or rain and snow environment; avoid extreme high or extreme low ambient temperatures and sudden temperature changes.

14. Store the device in ventilated areas. DO NOT use the device in moist environment and keep away from any combustible materials.

15. Avoid any shock or impact to the device.

16. DO NOT place any conductive or metal object in the device to avoid short circuiting and explosions.

17. DO NOT overcharge or over-discharge the batteries. Please recharge the battery as soon as the power runs out.

18. Unplug the device and remove all batteries when it is not in use.

19. DO NOT disassemble or modify the device as doing so will render the product warranty invalid. Please refer to the warranty section in the manual for complete warranty information.

20. DO NOT misuse in any way! Use for intended purpose and function only.

Disclaimer

This product is globally insured by Ping An Insurance (Group) Company of China, Ltd. NITECORE shall not be held responsible or liable for any loss, damage or claim of any kind incurred as a result of the failure to obey the instructions provided in this user manual.

Warranty Details

Our authorized dealers and distributors are responsible for warranty service. Should any problem covered under warranty occurs, customers can contact their dealers or distributors in regards to their warranty claims, as long as the product was purchased from an authorized dealer or distributor. NITECORE’s Warranty is provided only for products purchased from an authorized source. This applies to all NITECORE products.
To be qualified for warranty, please refer to the “IMPORTANT WARRANTY NOTICE” section on top to validate your product.
Any DOA / defective product can be exchanged for a replacement through a local distributor/dealer within the 15 days of purchase. After 15 days, all defective/malfunctioning NITECORE® products can be repaired free of charge for a period of 12 months (1 year) from the date of purchase. Beyond 12 months (1 year), a limited warranty applies, covering the cost of labor and maintenance, but not the cost of accessories or replacement parts.
The warranty is nullified if the product(s) is/are:

1. broken down, reconstructed and/or modified by unauthorized parties
2. damaged from wrong operations (i.e. reverse polarity installation, installation of non-rechargeable batteries or failure to obey the warnings)
3. damaged by batteries leakage.
   For the latest information on NITECORE® products and services, please contact a local NITECORE® distributor or send an email to service@nitecore.com.

All images, text and statements specified herein this user manual are for reference purpose only. Should any discrepancy occur between this manual and information specified on www.nitecore.com, information on our official website shall prevail. SYSMAX Innovations Co., Ltd. reserves the rights to interpret and amend the content of this document at any time without prior notice.

Validation code and QR code on package can be verified on NITECORE

website

The charger must be used with NITECORE’s official cords. Official cords are identified with clearly printed NITECORE on the plug. During charging, third party cords can cause malfunction, overheat and even fire on the charger. Damages from using unofficial cords cannot be covered by official warranty. The charger is restricted to charging Li-ion, IMR, Ni-MH/Ni-Cd rechargeable batteries only. DO NOT use the charger with other types of batteries as this could result in battery explosion, cracking or leaking, causing property damage and/or personal injury.

Safety Instruction for Lithium-ion Batteries

1. Charging Voltage
   Lithium-ion (Li-ion) batteries have strict requirement on voltage control. Charging Li-ion batteries with electric voltage beyond safety standard can lead to battery damage and explosion.

2. 3.7V Li-ion Batteries / IMR Batteries
   3.7V Li-ion batteries are the most common rechargeable Lithium batteries. The wraps of these batteries are often marked with 3.6V/3.7V signs. An inserted battery will be automatically charged in the 4.2V standard charging mode if our chargers identify it as a Li-ion battery.

3. 3.8V Li-ion Batteries
   3.8V Li-ion batteries are quite rare. These batteries also have a 3.7V mark on their wraps. However, its vendor often informs the buyer that the battery needs to be charged with 4.35V power. The Ci4 charger will not provide adequate voltage to charge the 3.8V Li-ion batteries.

4. 3.2V LiFePO4 Batteries

5. Charging Current
   For all rechargeable Lithium batteries (including Li-ion and IMR batteries), we suggest not using current larger than 1C for charging. For small capacity batteries, the charging current must be smaller than 1C. C=Capacity of a battery. For example, 1C in a 2600mAh rechargeable Lithium battery is 2.6A. 1C in a 3400mAh rechargeable Lithium battery is 3.4A.
   Excessively large charging current will lead to great amount of heat, and consequently battery damage and explosion.

6. Precautions

7. DO NOT short circuit the battery in any way.

8. DO NOT use a 3.7V/3.8V Lithium battery when its voltage is lower than 2.8V, otherwise it can be over-discharged, and/or prone to explosion at next charging.

9. We strongly recommend batteries with protective circuit. For batteries without protective circuit (such as IMR
   batteries), please stay alert for over-discharge and short circuit.

10. DO NOT discharge a battery with a discharging current larger than its maximum rated current.

11. Long-term Storage
    The best storage voltage for 3.7V/3.8V rechargeable Lithium batteries is 3.7V. Voltage being too low or too high can damage your battery during storage. You can discharge a battery to 3.7V, or charge it to 3.7V in a charger before you keep it in long-term storage.

References

• NITECORE
• GmbH.de
• Nitecore Markenshop | Taschenlampen, Akkus und mehr | Nitecore

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