Nitecore Ci2 Dual Slot Universal Battery Charger 3000mAH
The Nitecore Ci2 Dual Slot Universal Battery Charger is a USB-C charger with two independent slots and a maximum output of 3000mA into a single slot. It supports a wide range of rechargeable cells, from 18650 and 21700 batteries used in vape mods to batteries used in everyday devices. The Nitecore Ci2 Dual Slot Universal Battery Charger 3000mAh is available at Vape Wave UK, offering convenient charging for compatible rechargeable batteries. It suits adult vapers who want one charger for several battery sizes. You can compare it with the rest of our vape batteries and chargers. This is an accessory only. It does not include batteries or a vape device.
Compact USB-C Design
The Ci2 charges through a USB-C port, so you can power it from a phone adapter, laptop, power bank or solar panel. That makes it easier to use away from a wall socket than a mains-only charger. According to Nitecore, it measures 148 x 65 x 37mm and weighs about 120g without a cable, which keeps it easy to pack.
LED indicators show charging progress, so you can check the state of each cell at a glance.
Dual Slot Charging and Battery Compatibility
Each slot works independently, so two cells of different sizes can charge at the same time. The charger handles Li-ion and IMR cells from 10440 up to 26700, including common vape mod sizes such as 18650, 20700, and 21700. It also supports Ni-MH and Ni-Cd batteries in AA, AAA, AAAA, C, and D formats. The charger detects the cell type and selects a suitable charging mode automatically. Nitecore lists CC, CV, and -dV/dt modes, chosen without any input from you. Always check the markings on a battery before inserting it.
Performance Up to 3000mA Charging
With a compatible QC or PD adapter, a single slot can charge at up to 3000mA. When both slots are in use, each runs at up to 1500mA. Actual charging time depends on the capacity, size, and condition of each battery, and on the power source you use.
For the fastest result with one cell, use a suitable adapter and charge a single battery. For routine top-ups of a pair, the dual slot setup still keeps waiting time reasonable.
Who the Nitecore Ci2 Is For
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Run a mod on 18650, 20700 or 21700 cells and charge them in pairs
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Use more than one battery size or type
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Want to charge from a power bank or USB-C adapter while travelling
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Prefer automatic charging without manual settings
If you only need basic two-slot charging at a lower price, the AWT C2-2A Intelligent Battery Charger is worth comparing.
What’s Included
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1 x Nitecore Ci2 Charger
Nitecore Ci2 Specifications
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Feature |
Details |
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Product |
Nitecore Ci2 Dual Slot Universal Battery Charger |
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Brand |
Nitecore |
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Type |
External battery charger |
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Charging slots |
2, independent |
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Input |
USB-C, 5V/2A, 9V/2A, 12V/1.5A (18W max) |
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Output |
4.2V (Li-ion), 1.48V (Ni-MH/Ni-Cd) |
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Max current |
3000mA single slot, 1500mA per slot with two cells |
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Compatible cells |
Li-ion/IMR 10440 to 26700; Ni-MH/Ni-Cd AA, AAA, AAAA, C, D |
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Charging modes |
CC, CV and -dV/dt, selected automatically |
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Indicators |
LED charging status |
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Dimensions |
148 x 65 x 37mm |
Safety Information
Nitecore lists built-in protections including reverse polarity, short circuit, overcharge and over-time protection. These help guard against common mistakes, but they do not replace sensible handling.
Inspect each cell before charging. Do not charge batteries with torn wrap, dents, or other damage. Insert cells with the positive and negative ends matching the markings. Stay nearby while charging, use a hard, non-flammable surface, and remove batteries once they are full. Keep the charger and batteries away from children and pets. This product is for adults aged 18 and over, as set out in our age verification policy.
Maintenance Tips
Unplug the charger and remove all batteries before cleaning. Wipe the contacts with a dry, lint-free cloth to clear dust. Keep liquids away from the slots, and use an undamaged USB-C cable rated for the power you need.
Storage Tips
Store the charger in a cool, dry place away from direct sunlight and moisture. Carry spare batteries in a protective case so the terminals cannot touch metal objects. Avoid leaving cells in the charger when they are not charging.
Returns and Refunds
Vape Wave follows UK consumer rules. You can cancel within 14 days of receiving your order, and goods returned for a change of mind should be unused and in their original packaging. If your charger is faulty, damaged, or incorrect, email support@vapewave.co.uk with your order number and photos, and we will arrange a suitable solution. Full details are in our Return and Refund Policy.
Related Products
Nitecore Intellicharger NEW i2 Charger
AWT C2-2A Intelligent Battery Charger
Golisi Needle 4 Compact Battery Charger
Efest Soda Dual Battery Charger
FAQs
Which batteries can the Nitecore Ci2 charge?
The Nitecore Ci2 supports compatible rechargeable lithium-ion and IMR batteries, including common sizes such as 18650, 20700, and 21700. It may also support Ni-MH and Ni-Cd batteries in formats such as AA, AAA, AAAA, C, and D, depending on the exact model specifications. Always confirm compatibility before charging.
Does the Nitecore Ci2 charge 21700 batteries?
Yes, the Nitecore Ci2 is listed as supporting compatible 21700 lithium-ion batteries, alongside other common battery formats used in devices with removable batteries. Check your battery specifications before use.
How fast does the Nitecore Ci2 charge?
Charging speed depends on the power supply, battery type, and charging conditions. The stated maximum current may reach 3000mA in a single slot with a compatible power source, while charging two batteries may reduce the current available to each slot.
Can I charge two different battery sizes at once?
Yes, the independent charging slots are designed to manage compatible batteries separately. This allows you to charge batteries of different supported sizes at the same time, provided each battery is suitable for the charger.
How is the Nitecore Ci2 powered?
The charger uses a USB-C input and can be powered by a compatible USB power adapter or another suitable power source. For optimal performance, follow the manufacturer's recommended input specifications.
What does 3000mAh in the title mean?
Battery capacity is measured in mAh, whereas charging current is measured in mA. If the specification refers to a maximum charging current of 3000mA, that is a current rating rather than battery capacity. Confirm the manufacturer's specifications before using this figure in the product title.
Does the Nitecore Ci2 have safety protection?
The charger is designed with safety features intended to help protect against issues such as reverse polarity, short circuits, overcharging, and excessive charging time. Always follow the manufacturer's instructions and handle rechargeable batteries carefully.
Can I charge a pod kit with this charger?
No, the Nitecore Ci2 is intended for compatible removable batteries rather than vape devices with built-in batteries. Integrated-battery pod kits should be charged using the charging port and cable recommended by the device manufacturer.
Is it safe to leave batteries charging overnight?
Avoid leaving batteries charging unattended for extended periods. Follow the manufacturer's safety instructions, charge on a stable, non-flammable surface, and remove batteries when charging is complete.
Does the charger come with batteries or a power adapter?
Batteries and a USB power adapter may be sold separately. Check the product listing and package contents to confirm whether a USB-C cable or any additional accessories are included.
Do I need to be 18 to buy this charger?
Vape Wave UK sells age-restricted vaping products to customers aged 18 and over. Age-verification checks may apply in accordance with store policies and applicable UK requirements.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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