Vapcell 21700 S41 4100mAh

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Product image
Variant Name
Battery Size
4100mAh
Battery Capacity
4100mAh
45 Amp
Discharge
45 Amp
3.7V
Voltage
3.7V
  • Description
  • Reviews
  • Delivery

Meet the Vapcell S41 21700 Battery a high-drain INR cell engineered for serious performance. From regulated and mechanical mods to pro-grade torches and custom electronics, the S41 delivers outstanding, 4100mAh capacity with a 45A continuous discharge rating. Built by Vapcell, a brand respected for consistency and safety, this cell balances raw output with dependable longevity and low internal resistance.

Power & Endurance for Demanding Setups

Massive 4100mAh Capacity

Enjoy longer runtimes without sacrificing punch. The S41’s large capacity means fewer swaps and steadier performance across your day.

45A Continuous, Up to 70A Pulse

Designed for high-wattage builds and power-hungry tools, the S41 provides a 45A CDR with headroom for up to 70A pulse (with adequate cooling and cut-off protection). Expect strong, consistent voltage delivery under heavy load.

6A Quick Charge Ready

Reduce downtime with quick charge up to 6A (use a compatible charger). The cell follows CCCV charging to 4.20V with a 100mA cut-off for optimal health.

Built for Harsh Conditions

Engineered to perform from -20°C to 70°C (discharge) and charge safely from 0°C to 45°C. The robust INR chemistry and tight QC help ensure stability, low impedance, and long cycle life.

Technical Details That Matter

  • Cell type: INR21700
  • Typical capacity: 4100mAh (min 4000mAh)
  • Nominal voltage: 3.6V
  • Charge termination: 4.20V
  • Discharge cut-off: 2.50V
  • Standard charge: 3.0A (CCCV, 100mA cut-off)
  • Quick charge: 6.0A
  • Operating temps: Charge 0–45°C / Discharge -20–70°C
  • Storage: -5–35°C
  • Dimensions: Ø21.5mm × 70.5mm
  • Weight: ~70–72g

Expect low internal resistance for brisk ramp-up and stable output. In properly configured setups, the S41 sustains demanding draws with consistent voltage and reliable thermal control, while maintaining capacity across hundreds of cycles.

Why Choose This Product?

  • High headroom output: 45A CDR for serious power needs
  • Long runtime: 4100mAh capacity keeps you going
  • Fast turnaround: Up to 6A quick charging
  • Wide temperature tolerance: Works from -20°C to 70°C (discharge)
  • Trusted brand: Vapcell quality and consistency

What’s in the Box?

  • 1 × Vapcell S41 21700 Battery (Red)

Important Safety Notes

  • Do not short, puncture, overcharge, or over-discharge. Always use a compatible, high-quality charger.
  • Never carry loose cells—store in a non-conductive protective case.
  • Match cells when used in pairs/sets and replace as a set.

Ready to unlock serious high-drain performance? Add the Vapcell S41 21700 to your kit today and experience dependable power that keeps up with your most demanding builds.

  • All orders are sent in discreet packaging.
  • Delivery is free for all orders over £50. Otherwise, delivery is £3 to £12 depending on the service you plan to purchase.
  • You can return your product up to 14 days after receiving your order. Please make sure that the products are not used or damaged.

UK Shipping

Service Overview: Reliable tracked delivery service.

Delivery Time: 2 to 4 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday for orders placed before 2:30 PM (excluding Bank Holidays).
  • Deliveries are made weekdays and on Saturday.
  • NOT GUARANTEED SERVICE

Cost: £3.00 (Free over £50)

Service Overview: Fast, door-to-door courier service.

Delivery Time: Next day for most UK postcodes. View postcode exclusions

Key Features:

  • Full end-to-end tracking with live updates.
  • Same-day dispatch Monday to Friday for orders placed before 1:00 PM (excluding Bank Holidays).
  • Deliveries made on weekdays (some areas deliver Saturday).
  • Signature required on delivery.
  • Battery Restrictions: None: DPD imposes no additional restrictions on batteries.
  • NOT GUARANTEED SERVICE

Cost: £3.50 (Free over £50)

Service Overview: Parcels are delivered to a nearby DPD Pickup Point or Drop-Point for customer collection.

Delivery Time: Next day for most UK postcodes. View postcode exclusions

Key Features:

  • Notifications sent via email/SMS when parcel is ready for collection.
  • No signature required—customer collects in person.
  • Ideal if you’re not available at home for doorstep delivery.
  • Battery Restrictions: None: DPD imposes no additional restrictions on batteries.
  • NOT GUARANTEED SERVICE

Cost: £3.50 (Free over £50)

Service Overview: Reliable standard delivery service.

Delivery Time: 2 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday for orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.

Cost: Price Based On Address

Service Overview: Faster tracked delivery service.

Delivery Time: Up to 1 to 2 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday for orders placed before 2:30 PM (excluding Bank Holidays).
  • Deliveries are made weekdays and on Saturday.
  • NOT GUARANTEED SERVICE

Cost: £4.00

Service Overview: A cost-effective express service for less time-sensitive deliveries.

Delivery Time: Next business day delivery by the end of the day to most UK destinations.

Key Features:

  • Lower-cost option compared to UPS Express®.
  • Includes tracking and proof of delivery.
  • Suitable for urgent but not time-critical shipments.

Cost: Price Based On Address

Service Overview: Guaranteed next-day delivery service.

Delivery Time: Next day.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday for orders placed before 2:30 PM (excluding Bank Holidays).
  • Deliveries are made weekdays and on Saturday.

Cost: £9.00

Service Overview: A time-definite delivery service for urgent shipments.

Delivery Time: Next business day delivery by 10:30 AM or 12:00 PM to most UK locations.

Key Features:

  • Ideal for time-critical shipments.
  • Includes tracking and proof of delivery.
  • Money-back guarantee if the delivery commitment is not met.

Cost: Price Based On Address

International Shipping

Delivery Time: 3-10 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:30 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • NOT GUARANTEED SERVICE
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Weight + Address

Delivery Time: 3-10 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:30 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • NOT GUARANTEED SERVICE
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Weight + Address

Delivery Time: 2-4 working days.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Address

Delivery Time: Next Business Day EU.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Address

Delivery Time: Next Business Day EU By 10:30am.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Address

Delivery Time: 2 Business Day.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Address

Delivery Time: 1-2 Business Day.

Key Features:

  • Tracked to delivery point.
  • Same day dispatch Monday to Friday orders placed before 2:00 PM (excluding Bank Holidays).
  • Deliveries are made weekdays.
  • Delays caused by Customs are completely out with our control.

Cost: Price Based On Address

Vapcell 21700 S41 4100mAh FAQ

The Vapcell S41 21700 battery offers a 4100mAh typical capacity with a 45A continuous discharge rating for high-drain devices.
Yes. With a compatible charger, the Vapcell S41 supports quick charging up to 6A using a CCCV profile to 4.20V.
No. It is an unprotected high-drain cell intended for experienced users and devices designed for 21700 batteries.
Discharge from -20°C to 70°C and charge from 0°C to 45°C, with storage recommended between -5°C and 35°C.
It’s ideal for high-wattage vape mods, powerful flashlights, tools, and custom electronics requiring high-current 21700 cells.

Price Match Promise



Vaping 101 offers the lowest prices in the UK guaranteed. We constantly check our prices against competitors to offer our customers the best deal available.

If you find a price cheaper elsewhere in the UK (in stock), please just let us know. Fill out the contact form on our website and we will send you a unique discount code.

Batteries are not part of the price match.

***Please note, evidence of a cheaper price is required (a link to the price). Unfortunately, we do not offer this guarantee on sites like eBay, Amazon, etc. This is simply due to difficulty knowing if items are genuine. Must be a legitimate UK-based website operating within UK Law for comparison. Price match items must be in stock and like-for-like. Must be an advertised price.

All items on Vaping 101 are genuine manufactured originals.

Any questions, please don't hesitate to contact us.

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