Vapcell U30 18650 3000mAh 30A/45A Rechargeable Battery
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Refund policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at support@londonvapestore.co.uk. Please note that returns will need to be sent to the following address: 26 Alder Close, Erith, Da18 4aj
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at support@londonvapestore.co.uk.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unused, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at support@londonvapestore.co.uk.
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PRODUCT DETAILS
Vapcell U30 18650 3000mAh 30A/45A Battery
18650 Li-ion INR · 3000mAh capacity · 30A continuous discharge · 45A max pulse · 3A rapid charge · Gold wrap · No BMS · High-drain performance cell.
The Vapcell U30 is a high-drain 18650 Li-ion INR cell built for demanding applications — delivering 3000mAh capacity with a 30A continuous discharge rating and a 45A maximum pulse discharge. This makes it one of the highest-CDR 18650 cells in the Vapcell range, suited to regulated mods running at higher wattages and sub-ohm builds that draw significant current. Rapid charging at up to 3A, wide operating temperature range, and no BMS protection circuit (standard for vape mod batteries). A serious high-drain cell for retailers serving performance-focused vapers. Browse our full Vape Batteries & Chargers Wholesale range for all available cells and chargers.
Key Specifications
⚡ 30A Continuous Discharge · 45A Max Pulse
30A CDR with a 45A maximum short pulse discharge — one of the highest discharge ratings available in an 18650 cell, suited to high-wattage regulated mods and demanding sub-ohm builds
🔋 3000mAh Capacity
3000mAh nominal capacity (2900mAh minimum rated) — strong capacity for a high-drain cell, balancing performance and battery life in a single 18650 format
🔌 Li-ion INR · 11.1Wh Energy Density
INR chemistry with 11.1Wh energy density — a thermally stable, high-drain cell type well-suited to vaping applications requiring consistent high-current output
⚡ 3A Rapid Charging
Supports rapid charging at up to 3A CC (standard charge at 1500mA) via CC/CV at 4.2V — faster recharge times for customers who use their batteries heavily
🌡️ Wide Operating Temperature Range
Charge: 0°C to 45°C · Discharge: -20°C to 60°C — a wide discharge temperature range that maintains performance in varied environments
⚠️ Unprotected — No BMS Circuit
No built-in BMS protection circuit — standard for vape mod batteries. Protection is provided by the regulated mod’s chipset. Not suitable for use in unregulated or mechanical mods without appropriate user knowledge
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Browse all 18650 cells and chargers available for wholesale
Full Technical Specifications
| Brand | Vapcell |
| Model | U30 |
| Battery Size | 18650 (18.10mm × 65.00mm) |
| Chemistry | Li-ion INR (rechargeable) |
| Nominal Capacity | 3000mAh |
| Minimum Rated Capacity | 2900mAh |
| Energy Density | 11.1Wh |
| Continuous Discharge Current (CDR) | 30A |
| Max Short Pulse Discharge Current | 45A |
| Discharge Cut-off Voltage | 2.7V |
| Charging Method | CC/CV — 4.2V |
| Standard Charging Current | 1500mA (1.5A) |
| Rapid Charging Current | 3A |
| Charge Temperature Range | 0°C to 45°C |
| Discharge Temperature Range | -20°C to 60°C |
| Wrap Colour | Gold |
| Weight | 100g |
| BMS Protection Circuit | No — unprotected cell |
Educational Guide: High-Drain 18650 Cells Explained
What Makes the U30 a High-Drain Cell?
The Vapcell U30’s 30A continuous discharge rating places it firmly in the high-drain category of 18650 cells. Most standard 18650 cells are rated at 10–20A CDR — the U30’s 30A CDR (with a 45A max pulse) means it can safely deliver significantly more current without exceeding its thermal limits. This makes it the right choice for regulated mods running at higher wattages where lower-CDR cells would be operating closer to or beyond their safe limits.
What Is the Difference Between CDR and Max Pulse Discharge?
CDR (Continuous Discharge Rating) is the maximum current a cell can safely deliver on a sustained, continuous basis. Max pulse discharge (45A on the U30) is the maximum current the cell can deliver in short bursts — typically a few seconds. In vaping, the initial firing of a coil often draws a brief pulse of higher current before settling to a sustained draw. The U30’s 45A pulse rating provides additional headroom for this initial spike, reducing stress on the cell during firing.
How Does the U30 Compare to Other Vapcell 18650 Cells?
The U30 is Vapcell’s highest-drain 18650 option in this range. The Vapcell K30 offers the same 3000mAh capacity at 15A CDR — suited to moderate wattage use. The Vapcell M35A steps up to 3500mAh at 20A CDR for customers who want more capacity with a higher discharge headroom. The U30 is the choice for customers who specifically need maximum current output and are willing to trade some capacity for a significantly higher CDR.
Why Stock High-Drain Cells?
Performance-focused vapers running high-wattage regulated mods specifically seek out high-CDR cells — they understand battery specs and will not accept a lower-rated cell as a substitute. Stocking a range of 18650 cells across different CDR profiles ensures you can serve both everyday vapers and performance users. Browse the full Vape Batteries & Chargers Wholesale range for all available options.
Frequently Asked Questions
What is the continuous discharge rating of the Vapcell U30?
The Vapcell U30 has a continuous discharge rating (CDR) of 30A, with a maximum short pulse discharge of 45A.
What is the capacity of the Vapcell U30?
The Vapcell U30 has a nominal capacity of 3000mAh, with a minimum rated capacity of 2900mAh.
Does the Vapcell U30 have a protection circuit?
No — the Vapcell U30 is an unprotected cell with no built-in BMS. Protection is provided by the regulated mod’s chipset. It should only be used in regulated devices.
What is the charging specification?
The U30 charges via CC/CV at 4.2V. Standard charging current is 1500mA (1.5A); rapid charging is supported at up to 3A. Charge temperature range is 0°C to 45°C.
What is the difference between the U30 and the K30?
Both cells offer 3000mAh capacity, but the U30 has a 30A CDR (vs 15A on the K30) and a 45A max pulse rating. The U30 is the high-drain option for higher-wattage regulated mods; the K30 is suited to moderate wattage use.
Can I buy the Vapcell U30 in bulk for wholesale?
Yes — the Vapcell U30 18650 battery is available for wholesale purchase. Please contact us directly for bulk pricing and availability.
⚠️ Important Safety Warning
18650 rechargeable Li-ion batteries can be dangerous if used improperly. The Vapcell U30 is a high-drain unprotected cell — always use in regulated devices with appropriate protection circuits. Never use in mechanical or unregulated mods without thorough knowledge of battery safety. Do not short circuit, overcharge, over-discharge, crush, puncture, or expose to extreme heat. Never use a battery with a damaged wrap. By purchasing Li-ion batteries from London Vape Wholesale, the buyer assumes all associated risks. For wholesale enquiries, please contact us directly.