Vapcell U30 18650 3000mAh 30A/45A Battery

18650 Li-ion INR · 3000mAh capacity · 30A continuous discharge · 45A max pulse · Gold wrap · Unprotected · High-drain cell for demanding regulated mods.

The Vapcell U30 is a high-drain 18650 Li-ion INR cell delivering 3000mAh capacity with a 30A continuous discharge rating and 45A max pulse — one of the highest CDR ratings available in an 18650 format. Designed for regulated mods running at higher wattages and demanding sub-ohm builds where a standard 15–20A cell would be pushed to its limits. Flat top, unprotected (no BMS), and rated for 3A rapid charging. Browse our full Vape Batteries & Chargers range for all available cells and chargers.

Key Specifications

⚡ 30A Continuous Discharge / 45A Max Pulse

30A CDR with 45A max pulse — one of the highest discharge ratings in the 18650 format, suited to high-wattage regulated mods and demanding sub-ohm builds

🔋 3000mAh Capacity

3000mAh nominal capacity (2900mAh minimum rated) — solid capacity for a high-drain cell, balancing discharge performance with usable battery life

🔧 Li-ion INR · 11.1Wh

INR chemistry — thermally stable, high-drain cell type well-suited to vaping applications. 3.7V nominal, 11.1Wh total energy

🔌 3A Rapid Charging

Supports rapid charging at up to 3A via CC/CV at 4.2V — charge faster with a compatible dedicated charger

🌡️ Wide Operating Temperature Range

Charge: 0°C to 45°C · Discharge: -20°C to 60°C — reliable performance across a wide range of conditions

⚠️ Unprotected — No BMS Circuit

No built-in BMS — standard for vape mod batteries. Protection is provided by the regulated mod's chipset. Only use in regulated devices

More 18650 Batteries

Vapcell M35A 18650 3500mAh 20A Battery

Higher capacity at 3500mAh with 20A CDR — ideal for customers prioritising battery life

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Vapcell K30 18650 3000mAh 15A Battery

Same capacity at 15A CDR — a more moderate option for standard regulated mods

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Molicel P28A 18650 Battery

High-drain 18650 cell from Molicel — popular alternative for high-performance vaping

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ODBXT 3800mAh 18650 Battery

High-capacity 18650 cell at 3800mAh — for customers prioritising maximum battery life

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Vapcell Q2S-C USB-C Battery Charger

Dual-slot USB-C charger compatible with the U30 and all 18650 cells

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Batteries & Chargers — Full Range

Browse all 18650 cells and chargers at Vapin Loud

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Full Technical Specifications

Brand	Vapcell
Model	U30
Battery Size	18650
Chemistry	Li-ion INR (rechargeable)
Nominal Capacity	3000mAh
Minimum Rated Capacity	2900mAh
Energy	11.1Wh
Continuous Discharge Current (CDR)	30A
Max Pulse Discharge	45A
Discharge Cut-off Voltage	2.7V
Standard Charging Current	1.5A CC
Rapid Charging Current	3A CC
Charging Method	CC/CV — 4.2V
Charging Temperature	0°C to 45°C
Discharge Temperature	-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 U30's 30A CDR places it firmly in the high-drain category — most 18650 cells are rated at 10–20A. This higher discharge rating means the U30 can safely deliver more current to demanding devices without excessive heat build-up, making it suitable for regulated mods running at higher wattages where a standard cell would be operating near its limits.

What Is the Difference Between CDR and Max Pulse Discharge?

CDR (Continuous Discharge Rating) is the maximum current a cell can safely deliver continuously. Max pulse discharge (45A for the U30) is the peak current the cell can handle for very short bursts — such as the initial firing pulse of a regulated mod. In normal regulated mod use, the CDR is the more relevant figure. Never exceed the CDR for sustained use.

How Does the U30 Compare to the Vapcell K30 and M35A?

The Vapcell K30 offers 3000mAh at 15A CDR — a solid mid-range cell for moderate wattage use. The Vapcell M35A steps up to 3500mAh at 20A CDR. The U30 matches the K30's capacity but doubles the CDR to 30A, making it the right choice for customers who need maximum discharge headroom in an 18650 format.

Who Should Use the U30?

The U30 is best suited to vapers using regulated mods at higher wattages (typically 80W+) where a standard 15–20A cell may run warm under sustained use. It is also a good choice for dual-battery mods where the combined load per cell is higher. Browse the full Vape Batteries & Chargers range for all available options.

Frequently Asked Questions

What is the continuous discharge rating of the U30?

The Vapcell U30 has a continuous discharge rating (CDR) of 30A, with a max pulse discharge of 45A.

What is the capacity?

3000mAh nominal capacity, with a minimum rated capacity of 2900mAh.

Does the U30 have a protection circuit?

No — the U30 is an unprotected cell. Protection is provided by the regulated mod's chipset. Only use in regulated devices.

What are the charging specs?

Standard charging at 1.5A; rapid charging at up to 3A. CC/CV method at 4.2V. Charging temperature range: 0°C to 45°C.

How does the U30 compare to the K30?

Both have 3000mAh capacity, but the U30 has a 30A CDR vs the K30's 15A — making the U30 the better choice for high-wattage regulated mods and more demanding builds.

Where can I buy the Vapcell U30?

Order online at vapinloud.co.uk with fast UK delivery, or pick it up in person at any of our five stores — Eltham, Plumstead, Welling, Crayford, or Hoo.

⚠️ Important Safety Warning

18650 rechargeable Li-ion batteries can be dangerous if used improperly. 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.

🛒 Available now at Vapin Loud — shop online at vapinloud.co.uk or visit us in-store at our Eltham, Plumstead, Welling, Crayford or Hoo locations. Need help? Contact our team.

📦 Stock Availability Notice
Please contact our store or visit us in person to check availability before ordering. Our team is happy to help — email us at sales@vapinloud.co.uk.

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Vapcell U30 18650 3000mAh 30A/45A Rechargeable Battery