NITECORE Ci4 QUADRUPLE BATTERY CHARGER
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PRODUCT DESCRIPTION
Nitecore Ci4 Four-Slot USB-C Battery Charger for Li-ion, Ni-MH Cells
The Nitecore Ci4 is a four-slot battery charger designed for simultaneously charging a range of rechargeable cells. It is compatible with both Li-ion (Lithium-ion) batteries, including popular sizes such as 18650 and 21700, and Ni-MH/Ni-Cd batteries (Nickel-metal Hydride/Nickel-cadmium). This broad compatibility allows it to charge various battery types commonly used in vaping devices and other portable electronics.
The charger incorporates an optimized IMR battery charging program. This program continuously monitors the entire charging cycle to help ensure that the cut-off voltage always remains within safe limits. This precise management aims to contribute to the extended lifespan of the compatible batteries.
Equipped with a USB-C charging port, the Ci4 can support a maximum input charging current of 3000mA when charging a single battery. The current output scales down when more slots are in use (e.g., 1500mA for two slots, 750mA for four slots in Fast Charge Mode). This higher current capability can reduce the time required to fully charge compatible batteries. The USB-C port is reversible, simplifying connection, and automatically detects Quick Charge (QC) or Power Delivery (PD) input. This allows the charger to draw power from various sources, enhancing flexibility for users in different environments.
The Nitecore Ci4 features a dual external protection system. This system is designed to provide both efficient heat dissipation and enhanced durability, making the charger suitable for use in varied conditions. The charger is constructed from durable, fire-retardant PC materials for enhanced safety during operation.
Multiple safety features are integrated into the Ci4. These include reverse polarity protection, which helps prevent damage if a battery is inserted incorrectly, and short circuit prevention. The charger automatically selects between three charging modes—Constant Current (CC), Constant Voltage (CV), and –dV/dt—based on the battery type and status. It also automatically detects the battery's power level and terminates charging upon completion to prevent overcharging. An over-discharged Li-ion battery activation function can attempt to revive certain deeply discharged Li-ion cells. The device also includes an energy-saving function and straightforward power indication for user convenience.
Specifications
- Input: QC/PD 5V⎓2A / 9V⎓2A / 12V⎓1.5A 18W (MAX)
-
Independent Outputs:
- Battery: 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 Chemistries: IMR/Li-ion, Ni-MH/Ni-Cd
- Compatible Li-ion/IMR Sizes: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 21700, 22500, 22650, 25500, 26500, 26650, 26700
- Compatible Ni-MH/Ni-Cd Sizes: AA, AAA, AAAA, C, D
- Single Slot Max Output: 3000mA
- Charging Modes: Automatic selection (CC, CV, –dV/dt)
- Safety Features: Over-discharged Li-ion battery activation, Reverse polarity protection, Short circuit prevention, Dual external protection
- Material: Durable fire-retardant PC materials
- Certifications: RoHS, CE, FCC, CEC
- Dimensions: 148 x 105 x 37mm (5.83″ x 4.13″ x 1.46″)
- Weight: 191.4g (6.75 oz)
Package Contents
- 1x Nitecore Ci4 Battery Charger
- 1x USB-C Cable
SHIPPING INFO
SHIPPING POLICY
Gas City Vapes offers same day shipping on all Domestic orders placed before 1pm MST with the exception of Holidays and weekends.
Last updated: February 3, 2026
If you do not see any available shipping options during checkout, please contact us directly so we can make alternative shipping arrangements for your order.
Proof of Age Required
Shipping in Canada
- British Columbia - Appx 3 Business Days
- Alberta - Appx 3 Business Days (Calgary = 1 Day, Edmonton = 2 Days)
- Saskatchewan - Appx 4 Business Days (Saskatoon & Regina = 3 Days)
- Manitoba - Appx 4 Business Days
- Ontario - Appx 4 Business Days
- Quebec - NO SHIPPING
- New Brunswick - Appx 8 Business Days
- Nova Scotia - Appx 8 Business Days
- PEI - Appx 8 Business Days
- Newfoundland - Appx 8 Business Days
- Nunavut - NO SHIPPING
- Northwest Territories - NO SHIPPING
- Yukon - Appx 13 Business Days
Please note all shipping times are appx and may be delayed if you live in a remote area of your province or if the shipping carrier has weather delays. If you require your package sooner than we offer with the free shipping option you can upgrade to Xpresspost for a fee and usually gets to you in half the amount of time.
United States Shipping
IMPORTANT UPDATES FOR U.S. CUSTOMERS
Due to the new U.S. Customs and Border Protection regulations, the way we ship orders to the United States is temporarily changing. Effective August 29, 2025, the U.S. has eliminated the duty-free exemption for all packages from Canada.
What This Means for Your Order:
New Orders (placed after August 28, 2025): We have temporarily suspended the ability to place U.S. orders directly through our website. We are actively working to implement a new system that will allow us to properly collect and prepay all required duties and taxes at the time of your purchase.
Orders Already Shipped (placed before August 29, 2025): IF your order was shipped before this change took effect, but has not arrived in the U.S., there's a significant risk of delay or refusal by U.S. Customs. Packages shipped under the old rules may be returned to us as non-compliant. Unfortunately, once a package is in transit, we have no control over its clearance process. We will monitor your tracking information and contact you immediately if we see any issues.
Need to Order Now? We're committed to serving our loyal U.S. customers. If you need to place an order and are having troubles or not seeing any shipping options at checkout, please contact us directly via phone or email. We will process your request manually and discuss any potential implications.
We sincerely apologize for any inconvenience this may cause and thank you for your patience as we navigate these complex changes. We appreciate your business and are working hard to make our U.S. shipping process as seamless as possible in compliance with all new regulations.
International Shipping Disclaimer
- You, the buyer, are responsible for any VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc. required by your country for importing consumer goods. We do not collect this beforehand, and cannot give you an estimate of the cost - charges vary around the world.
- As an international consumer, please do your research to ensure there are no surprise charges when clearing your package through customs, and to have an idea of what the additional cost may be. If you are unfamiliar with customs fees and charges, please speak to your local postal or customs office for more information. It is your full responsibility to verify the customs, duties charges, and procedures in your country prior to placing your order.
- If customs fees and charges are refused at the time of delivery, your order will be returned and you will not receive a refund for shipment costs.
Delivery Timing
Gas City Vapes Inc. does not guarantee at any time a certain delivery date or time frame for delivery for any product or order. Any listed time for a shipping method is an estimate only. For orders with deadlines please order well in advance.
Shipping Terms
Gas City Vapes Inc. is not responsible for lost, misplaced, or delayed shipments or damaged freight by the freight carriers after they have been dispatched.
Gas City Vapes Inc. cannot be held responsible / liable for lost or stolen packages that have delivery confirmation to the address that was provided. The customer accepts full responsibility to file any claim(s) with carrier for damaged and/or lost shipments.
We are not responsible for mis-delivery errors via carrier, or incorrect shipping info.
If you have any further questions please feel free to contact us at
sales@gascityvapes.com
RETURNS & WARRANTY
Returns, Refunds & Warranty
At Gas City Vapes, we want to ensure you are satisfied with your purchase. Please read our policy below regarding returns, warranties, and exchanges.
1. Final Sale & Non-Returnable Items
For sanitary and safety purposes, the following items are Final Sale and cannot be returned or exchanged once purchased or shipped, unless dead-on-arrival (DOA):
- E-Liquid and liquid products
- Disposable Vapes
- Pre-filled pods (including STLTH pods)
- Replacement Coils and Pods
- Rechargeable Batteries
- Atomizers / Tanks
- Opened or used non-defective items
2. Change of Mind (Unopened Items)
If you change your mind about a purchase, you may return unopened and unused items within 30 days of purchase for a full refund.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day return window.
- Condition: Items must be in their original, sealed packaging.
- Shipping: The customer is responsible for return shipping costs. Shipping charges are non-refundable.
3. Hardware Warranty (Defects)
Hardware purchased directly from our website is covered by a 30-Day Limited Warranty from the date of delivery.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day warranty.
- Coverage: This warranty covers manufacturing defects. It does not cover normal wear and tear, cosmetic issues (scratches/discoloration), accidents, abuse, disassembly, or user error.
- Packaging Requirement: Manufacturers require the original packaging (including outer sleeves and warranty cards) to process claims. Do not discard your packaging, or we may be unable to process your warranty.
- Compatibility: We do not guarantee compatibility between different items unless otherwise states. Incompatibility is not a valid reason for return.
- Cannabis/CBD Warning: Atomizers and devices sold here are for use with e-liquids only unless otherwise states. Use of cannabis/CBD oils or similar substances voids the warranty immediately.
4. Dead on Arrival (DOA) & Missing Items
Please inspect your package immediately upon delivery. Claims for "Dead on Arrival", missing items, or physical damage must be reported within 48 hours of delivery.
5. Incorrect Shipments
If we made a mistake and sent the wrong item, we will fix it at no cost to you.
- We will provide a pre-paid shipping label for you to return the incorrect item.
- Once the incorrect item is received back at our facility, we will immediately ship the correct product to you.
- Note: We cannot ship the replacement until the incorrect item is received or confirmed in transit.
6. Fees & Shipping Costs
- Return Shipping: Customers are responsible for return shipping costs for non-defective returns. We cover shipping costs for approved warranty replacements on our own shipping errors.
-
Restocking Fee (15%): A 15% fee may be deducted from your refund if:
- Returns are opened and found to be non-defective.
- Items are not cleaned/emptied prior to return
- The package was refused by the customer or carrier (shipping costs are also deducted in this case).
- Refund Methods: Refunds are issued to the original payment method or as store credit. We are not responsible for refunds to prepaid cards that are no longer in the customer's possession. We may require a copy of Photo ID to process certain refunds.
How to Initiate a Return
To start a return or warranty claim, please email us within the 30-day window.
Email: sales@gascityvapes.com
Please include the following in your email:
- Full Name
- Order Number
- Detailed explanation of the issue
- Photo or video proof of the defect (if applicable)
Once approved, you will receive further instructions. Replacements are shipping after the defective item is approved for warranty.
Nitecore Ci4 Four-Slot USB-C Battery Charger for Li-ion, Ni-MH Cells
The Nitecore Ci4 is a four-slot battery charger designed for simultaneously charging a range of rechargeable cells. It is compatible with both Li-ion (Lithium-ion) batteries, including popular sizes such as 18650 and 21700, and Ni-MH/Ni-Cd batteries (Nickel-metal Hydride/Nickel-cadmium). This broad compatibility allows it to charge various battery types commonly used in vaping devices and other portable electronics.
The charger incorporates an optimized IMR battery charging program. This program continuously monitors the entire charging cycle to help ensure that the cut-off voltage always remains within safe limits. This precise management aims to contribute to the extended lifespan of the compatible batteries.
Equipped with a USB-C charging port, the Ci4 can support a maximum input charging current of 3000mA when charging a single battery. The current output scales down when more slots are in use (e.g., 1500mA for two slots, 750mA for four slots in Fast Charge Mode). This higher current capability can reduce the time required to fully charge compatible batteries. The USB-C port is reversible, simplifying connection, and automatically detects Quick Charge (QC) or Power Delivery (PD) input. This allows the charger to draw power from various sources, enhancing flexibility for users in different environments.
The Nitecore Ci4 features a dual external protection system. This system is designed to provide both efficient heat dissipation and enhanced durability, making the charger suitable for use in varied conditions. The charger is constructed from durable, fire-retardant PC materials for enhanced safety during operation.
Multiple safety features are integrated into the Ci4. These include reverse polarity protection, which helps prevent damage if a battery is inserted incorrectly, and short circuit prevention. The charger automatically selects between three charging modes—Constant Current (CC), Constant Voltage (CV), and –dV/dt—based on the battery type and status. It also automatically detects the battery's power level and terminates charging upon completion to prevent overcharging. An over-discharged Li-ion battery activation function can attempt to revive certain deeply discharged Li-ion cells. The device also includes an energy-saving function and straightforward power indication for user convenience.
Specifications
- Input: QC/PD 5V⎓2A / 9V⎓2A / 12V⎓1.5A 18W (MAX)
-
Independent Outputs:
- Battery: 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 Chemistries: IMR/Li-ion, Ni-MH/Ni-Cd
- Compatible Li-ion/IMR Sizes: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 21700, 22500, 22650, 25500, 26500, 26650, 26700
- Compatible Ni-MH/Ni-Cd Sizes: AA, AAA, AAAA, C, D
- Single Slot Max Output: 3000mA
- Charging Modes: Automatic selection (CC, CV, –dV/dt)
- Safety Features: Over-discharged Li-ion battery activation, Reverse polarity protection, Short circuit prevention, Dual external protection
- Material: Durable fire-retardant PC materials
- Certifications: RoHS, CE, FCC, CEC
- Dimensions: 148 x 105 x 37mm (5.83″ x 4.13″ x 1.46″)
- Weight: 191.4g (6.75 oz)
Package Contents
- 1x Nitecore Ci4 Battery Charger
- 1x USB-C Cable
SHIPPING POLICY
Gas City Vapes offers same day shipping on all Domestic orders placed before 1pm MST with the exception of Holidays and weekends.
Last updated: February 3, 2026
If you do not see any available shipping options during checkout, please contact us directly so we can make alternative shipping arrangements for your order.
Proof of Age Required
Shipping in Canada
- British Columbia - Appx 3 Business Days
- Alberta - Appx 3 Business Days (Calgary = 1 Day, Edmonton = 2 Days)
- Saskatchewan - Appx 4 Business Days (Saskatoon & Regina = 3 Days)
- Manitoba - Appx 4 Business Days
- Ontario - Appx 4 Business Days
- Quebec - NO SHIPPING
- New Brunswick - Appx 8 Business Days
- Nova Scotia - Appx 8 Business Days
- PEI - Appx 8 Business Days
- Newfoundland - Appx 8 Business Days
- Nunavut - NO SHIPPING
- Northwest Territories - NO SHIPPING
- Yukon - Appx 13 Business Days
Please note all shipping times are appx and may be delayed if you live in a remote area of your province or if the shipping carrier has weather delays. If you require your package sooner than we offer with the free shipping option you can upgrade to Xpresspost for a fee and usually gets to you in half the amount of time.
United States Shipping
IMPORTANT UPDATES FOR U.S. CUSTOMERS
Due to the new U.S. Customs and Border Protection regulations, the way we ship orders to the United States is temporarily changing. Effective August 29, 2025, the U.S. has eliminated the duty-free exemption for all packages from Canada.
What This Means for Your Order:
New Orders (placed after August 28, 2025): We have temporarily suspended the ability to place U.S. orders directly through our website. We are actively working to implement a new system that will allow us to properly collect and prepay all required duties and taxes at the time of your purchase.
Orders Already Shipped (placed before August 29, 2025): IF your order was shipped before this change took effect, but has not arrived in the U.S., there's a significant risk of delay or refusal by U.S. Customs. Packages shipped under the old rules may be returned to us as non-compliant. Unfortunately, once a package is in transit, we have no control over its clearance process. We will monitor your tracking information and contact you immediately if we see any issues.
Need to Order Now? We're committed to serving our loyal U.S. customers. If you need to place an order and are having troubles or not seeing any shipping options at checkout, please contact us directly via phone or email. We will process your request manually and discuss any potential implications.
We sincerely apologize for any inconvenience this may cause and thank you for your patience as we navigate these complex changes. We appreciate your business and are working hard to make our U.S. shipping process as seamless as possible in compliance with all new regulations.
International Shipping Disclaimer
- You, the buyer, are responsible for any VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc. required by your country for importing consumer goods. We do not collect this beforehand, and cannot give you an estimate of the cost - charges vary around the world.
- As an international consumer, please do your research to ensure there are no surprise charges when clearing your package through customs, and to have an idea of what the additional cost may be. If you are unfamiliar with customs fees and charges, please speak to your local postal or customs office for more information. It is your full responsibility to verify the customs, duties charges, and procedures in your country prior to placing your order.
- If customs fees and charges are refused at the time of delivery, your order will be returned and you will not receive a refund for shipment costs.
Delivery Timing
Gas City Vapes Inc. does not guarantee at any time a certain delivery date or time frame for delivery for any product or order. Any listed time for a shipping method is an estimate only. For orders with deadlines please order well in advance.
Shipping Terms
Gas City Vapes Inc. is not responsible for lost, misplaced, or delayed shipments or damaged freight by the freight carriers after they have been dispatched.
Gas City Vapes Inc. cannot be held responsible / liable for lost or stolen packages that have delivery confirmation to the address that was provided. The customer accepts full responsibility to file any claim(s) with carrier for damaged and/or lost shipments.
We are not responsible for mis-delivery errors via carrier, or incorrect shipping info.
If you have any further questions please feel free to contact us at
sales@gascityvapes.com
Returns, Refunds & Warranty
At Gas City Vapes, we want to ensure you are satisfied with your purchase. Please read our policy below regarding returns, warranties, and exchanges.
1. Final Sale & Non-Returnable Items
For sanitary and safety purposes, the following items are Final Sale and cannot be returned or exchanged once purchased or shipped, unless dead-on-arrival (DOA):
- E-Liquid and liquid products
- Disposable Vapes
- Pre-filled pods (including STLTH pods)
- Replacement Coils and Pods
- Rechargeable Batteries
- Atomizers / Tanks
- Opened or used non-defective items
2. Change of Mind (Unopened Items)
If you change your mind about a purchase, you may return unopened and unused items within 30 days of purchase for a full refund.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day return window.
- Condition: Items must be in their original, sealed packaging.
- Shipping: The customer is responsible for return shipping costs. Shipping charges are non-refundable.
3. Hardware Warranty (Defects)
Hardware purchased directly from our website is covered by a 30-Day Limited Warranty from the date of delivery.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day warranty.
- Coverage: This warranty covers manufacturing defects. It does not cover normal wear and tear, cosmetic issues (scratches/discoloration), accidents, abuse, disassembly, or user error.
- Packaging Requirement: Manufacturers require the original packaging (including outer sleeves and warranty cards) to process claims. Do not discard your packaging, or we may be unable to process your warranty.
- Compatibility: We do not guarantee compatibility between different items unless otherwise states. Incompatibility is not a valid reason for return.
- Cannabis/CBD Warning: Atomizers and devices sold here are for use with e-liquids only unless otherwise states. Use of cannabis/CBD oils or similar substances voids the warranty immediately.
4. Dead on Arrival (DOA) & Missing Items
Please inspect your package immediately upon delivery. Claims for "Dead on Arrival", missing items, or physical damage must be reported within 48 hours of delivery.
5. Incorrect Shipments
If we made a mistake and sent the wrong item, we will fix it at no cost to you.
- We will provide a pre-paid shipping label for you to return the incorrect item.
- Once the incorrect item is received back at our facility, we will immediately ship the correct product to you.
- Note: We cannot ship the replacement until the incorrect item is received or confirmed in transit.
6. Fees & Shipping Costs
- Return Shipping: Customers are responsible for return shipping costs for non-defective returns. We cover shipping costs for approved warranty replacements on our own shipping errors.
-
Restocking Fee (15%): A 15% fee may be deducted from your refund if:
- Returns are opened and found to be non-defective.
- Items are not cleaned/emptied prior to return
- The package was refused by the customer or carrier (shipping costs are also deducted in this case).
- Refund Methods: Refunds are issued to the original payment method or as store credit. We are not responsible for refunds to prepaid cards that are no longer in the customer's possession. We may require a copy of Photo ID to process certain refunds.
How to Initiate a Return
To start a return or warranty claim, please email us within the 30-day window.
Email: sales@gascityvapes.com
Please include the following in your email:
- Full Name
- Order Number
- Detailed explanation of the issue
- Photo or video proof of the defect (if applicable)
Once approved, you will receive further instructions. Replacements are shipping after the defective item is approved for warranty.
NITECORE Ci4 QUADRUPLE BATTERY CHARGER FAQ
Get answers to questions frequently asked about the NITECORE Ci4 QUADRUPLE BATTERY CHARGER.
Our customer support is available by phone or email 7 days a week: 10:00am-8:00pm.
.What battery types are compatible with the Nitecore Ci4 charger?
The Nitecore Ci4 charger is compatible with both IMR/Li-ion (Lithium-ion) and Ni-MH/Ni-Cd (Nickel-metal Hydride/Nickel-cadmium) battery chemistries, including common vaping battery sizes such as 18650 and 21700.
What is the maximum charging current when using the Nitecore Ci4 charger?
The Nitecore Ci4 can deliver a maximum charging current of 3000mA when charging a single battery. The current per slot adjusts based on the number of batteries being charged simultaneously (e.g., 1500mA for two, 750mA for four in Fast Charge Mode).
Does the Nitecore Ci4 charger support USB-C input for power?
Yes, the Nitecore Ci4 features a USB-C charging port that supports Quick Charge (QC) and Power Delivery (PD) input, allowing it to be powered from various compatible sources.
What safety features are integrated into the Nitecore Ci4 battery charger?
The Nitecore Ci4 includes reverse polarity protection, short circuit prevention, over-discharged Li-ion battery activation, and a dual external protection system for thermal management and durability.
Does the Nitecore Ci4 automatically detect battery type and cease charging when complete?
Yes, the Nitecore Ci4 automatically detects the inserted battery's power level and selects the appropriate charging mode. It also automatically terminates the charging process once the battery is fully charged.
