Vapcell K30 18650 3000mAh 15A Battery

18650 Li-ion INR · 3000mAh capacity · 15A continuous discharge · 3.6V nominal · Flat top · No BMS protection circuit.

The Vapcell K30 is a high-quality 18650 Li-ion INR cell delivering 3000mAh capacity with a 15A continuous discharge rating — a balanced combination of capacity and current output suited to regulated mods and sub-ohm vaping. Flat top, unprotected (no BMS circuit), and rated for standard CC/CV charging at up to 3A rapid charge. A reliable, consistent cell from Vapcell. Browse our full Vape Batteries & Chargers range for all available cells and chargers.

Key Specifications

🔋 3000mAh Capacity

3000mAh nominal capacity (2950mAh minimum rated) — strong capacity for an 18650 cell, providing good battery life in regulated mods and sub-ohm devices

⚡ 15A Continuous Discharge

15A CDR — suitable for regulated mods and moderate sub-ohm builds. Delivers a reliable, consistent current output without excessive heat build-up under normal use

🔌 3.6V Nominal · 11.1Wh Energy

3.6V nominal voltage with 11.1Wh total energy — standard 18650 voltage profile compatible with all regulated 18650 vape mods

🔧 Li-ion INR Chemistry

INR (lithium nickel manganese cobalt oxide) chemistry — a stable, high-drain cell type well-suited to vaping applications, offering a good balance of capacity, discharge rate, and thermal stability

📌 Flat Top · 18mm × 65mm

Standard 18650 flat top format — Ø18mm × 65mm dimensions compatible with the vast majority of 18650 vape mods and dual-battery devices

⚠️ Unprotected — No BMS Circuit

No built-in BMS protection circuit — standard for vape mod batteries. Protection is provided by the mod itself. Not suitable for use in unregulated or mechanical mods without appropriate user knowledge

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Fogstar Energy 3000 18650 Battery

3000mAh 18650 high power cell from Fogstar Energy

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Vape Batteries & Chargers — Full Range

Browse all 18650 cells and chargers at Vapin Loud

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Full Technical Specifications

Brand	Vapcell
Model	K30
Battery Size	18650 (Ø18mm × 65mm)
Chemistry	Li-ion INR (rechargeable)
Nominal Voltage	3.6V
Nominal Capacity	3000mAh
Minimum Rated Capacity	2950mAh
Energy	11.1Wh
Continuous Discharge Current (CDR)	15A
Discharge Cut-off Voltage	2.7V
Standard Charging Current	800mA CC
Rapid Charging Current	3000mA (3A) CC
Charging Method	CC/CV — 4.2V ± 0.05V, cut-off 150mA
Charging Temperature Range	0°C to 45°C
Top Type	Flat top
Colour / Wrap	Gold
Weight	48g max
BMS Protection Circuit	No — unprotected cell

Educational Guide: 18650 Batteries for Vaping

What Is an 18650 Battery?

The 18650 is the most widely used rechargeable cell format in the vaping industry. The name refers to its dimensions — 18mm diameter by 65mm length. These cells power the vast majority of regulated box mods and many sub-ohm devices. They are rechargeable Li-ion cells that are charged externally (in a dedicated charger) or via the mod's built-in USB charging circuit.

What Does CDR Mean and Why Does It Matter?

CDR stands for Continuous Discharge Rating — the maximum current (in amps) a cell can safely deliver continuously. The Vapcell K30 has a 15A CDR, which is suitable for regulated mods operating at moderate wattages. Using a cell beyond its CDR rating generates excessive heat and can damage the cell. For regulated mods with built-in protection, the mod's chipset will typically limit current draw to safe levels — but it is still important to use a cell with an appropriate CDR for the device.

What Does 'Unprotected' Mean?

An unprotected cell has no built-in Battery Management System (BMS) circuit. This is standard for vape mod batteries — the protection (overcharge, over-discharge, short circuit) is provided by the mod's chipset rather than the cell itself. They should only be used in regulated devices with appropriate protection circuits, and never in mechanical or unregulated mods without thorough knowledge of battery safety.

How Does the Vapcell K30 Compare to Other 18650 Cells?

The K30 sits in the mid-range of the 18650 market — 3000mAh capacity with a 15A CDR. For customers who prioritise higher capacity, the ODBXT 3800mAh or Fogstar Energy 4000 offer more mAh. For customers who need higher discharge rates, the Molicel P28A is a popular high-drain option. Browse the full Vape Batteries & Chargers range for all available cells.

Frequently Asked Questions

What is the capacity of the Vapcell K30?

The Vapcell K30 has a nominal capacity of 3000mAh, with a minimum rated capacity of 2950mAh.

What is the continuous discharge rating?

The Vapcell K30 has a continuous discharge rating (CDR) of 15A, suitable for regulated mods at moderate wattages.

Is the Vapcell K30 flat top or button top?

The Vapcell K30 is a flat top cell, compatible with the vast majority of 18650 vape mods.

Does the Vapcell K30 have a protection circuit?

No — the Vapcell K30 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 voltage and current?

The K30 charges via CC/CV at 4.2V (±0.05V). Standard charging current is 800mA; rapid charging is supported at up to 3000mA (3A). Charging temperature range is 0°C to 45°C.

Where can I buy the Vapcell K30?

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 Information

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 K30 18650 3000mAh 15A Gold Rechargeable Battery