Vapcell P42A 21700 45A 4200mah Battery

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SKU: E15416AM01S

Vapcell P42A 21700 – Powerhouse of Performance

Unveiling the Vapcell P42A 21700 battery, a marvel of modern engineering designed to deliver unmatched performance and reliability. This battery is poised to power a wide array of high-drain devices, ensuring you stay charged for all your needs.

Robust and Reliable Design

The Vapcell P42A comes in the INR21700 size format, measuring at 20.5*70.2mm, making it compatible with a variety of devices that require high-capacity power sources. Crafted with a nominal voltage of 3.6V which peaks at an end-of-charge voltage of 4.20V, and with a safe end-of-discharge voltage of 2.50V, this battery is built for efficiency and safety.

High Capacity for Extended Use

With a typical capacity of 4200mAh, achieved at a 0.2C discharge rate, the P42A offers longevity and sustained performance. It ensures a minimum capacity of 4000mAh, promising consistent power output for your devices. Weighing in at a maximum of 70g, it's a lightweight power solution that doesn't compromise on energy density.

Quick and Efficient Charging

The internal resistance is kept at a maximum of 11mOhm, which allows for a standard charge at 1500mA, with a CCCV 100mA cut-off. The standard charging time is approximately 4 hours, but for those on the go, the P42A also supports a quick charge current of 3000mA, slashing waiting times significantly.

Exceptional Discharge Rates and Temperature Tolerance

This battery boasts a max continuous discharge current of 30A, making it suitable for high-drain applications. It operates within a charging temperature range of 0°C to 45°C and a discharging temperature range of -20°C to 75°C, ensuring versatility in various environmental conditions. For storage, it is recommended to keep the battery in temperatures ranging from -5°C to 35°C with humidity levels maintained between 45-75%RH.

The Vapcell P42A 21700 45A 4200mAh battery stands as a testament to Vapcell's commitment to providing superior power solutions, catering to the needs of users who demand the best in terms of performance, capacity, and reliability. Whether for vaping devices, flashlights, or any other high-powered gadgets, this battery is set to exceed expectations.

  • Model: INR21700
  • Size: 20.5*70.2mm
  • Nominal voltage: 3.6V
  • End-of-charge voltage: 4.20V
  • End-of-discharge Voltage: 2.50V
  • Typical Capacity: 4200mAh (0.2C discharge)
  • Min capacity: 4000Ah (0.2C discharge)
  • Weight: Max: 70g
  • Internal resistance: Max: 11mOhm (AC 1kHz)
  • Standard Charge: 1500mA,CCCV 100mA cut-off
  • Charging Time: 4hours(standard charge)
  • Quick Charge Current: 3000mA
  • Max Continuous Discharge Current: 30A
  • Operating Temperature: Charging: 0°C ~ 45°C, Discharging: -20°C ~ 75°C
  • Storage: Temperature -5°C ~ 35°C, Humidity
  • Standard environmental condition: Temperature: 23±5°C, Humidity: 45-75%RH
  • 1 x Vapcell P42A 21700 Battery
Delivery & Return

Delivery Information


Shipping Prices


Royal Mail First Class Shipping:

  • First class shipping is 1-3 working days
  • Same day dispatch Monday to Friday orders placed before 4.00 pm. (Excluding Bank holidays)
  • Deliveries are made on weekdays and Saturday
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£2.99 under £30


£2.49 over £30


FREE - spend over £60


Royal Mail Second Class Shipping:

  • 2-5 working days
  • Same day dispatch Monday to Friday orders placed before 4.00 pm. (Excluding Bank holidays)
  • Deliveries are made on weekdays
  • Signature required

£1.99 under £30


FREE - spend over £30


DPD Next Working Day Main Land:

  • Next working day
  • UK Mainland
  • Deliveries made Monday to Friday (excl. Weekends & Bank Holidays)
  • Fully tracked service
  • Signature required

£4.49 under £30


£3.99 over £30 


FREE - spend over £60


DPD SAT - Saturday Delivery:

  • Next working day
  • UK Mainland
  • Deliveries need to be made by Friday 4 PM ( If an order is placed after this time it will be sent the following Monday via DPD Next Day Service and you will be reimbursed the difference. )
  • Fully tracked service
  • Signature required

£8.49 under £40


£7.99 over £40


£5.99 over £60


UPS International:

  • Delivery times depend on the country
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Fixed rates, calculated at checkout


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During this very uncertain time, due to staff shortages. Returns are being dealt with within 48 hours of receiving.
Sorry for any inconvenience.


  • PayPal Refunds will be instant.
  • International parcel refunds / claims cannot be processed until 28 days have passed without scan or delivery.
  • Card refunds will be processed at the end of every working day and can take 1-3 working days.
    Return Exceptions
  • Some items can not be returned if they are opened unless faulty.
  • Merchandise that has been used or altered may not be accepted for return or exchange.
  • We don't accept mods back that do not charge, we recommend using an external charger rather than charging through the mod where possible for battery safety.
  • Original packaging must be kept to gain any refunds/replacements

Faulty items

  • Please allow 48 hours after we have received your item to investigate the fault
  • If deemed faulty, we will offer you store credit to place a new order through our site - giving you a new invoice & warranty from purchase date
  • If an item is found not to be faulty, it will be returned to you via Royal Mail 2nd class tracked service and will not be eligible for a refund or replacement.
  • If found faulty within 30 days of purchase date, you are entitled to either a store credit or refund.
  • If found faulty after 30 days but within our 90 day warranty, you will either be offered a repair or store credit.

Batteries, Chargers and Variable Voltage Mods

These items come with a one month guarantee and have a life expectancy of 3-6 months. This does not affect your statutory rights. The guarantee covers any manufacturer defects and covers any repairs, or replacements, if deemed to be faulty or beyond repair. If the product has been damaged in any way by the customer we reserve the right to refuse a refund or return.

Mechanical Mods

A 30 days manufacturer’s guarantee is applied to all mechanical mods. Please note that Mechanical Mods are for experienced users ONLY. ECIG ONE accepts no responsibility for the potential damage caused by the incorrect assembling of any mechanical mod. Incorrect building of the mechanical mod can cause damage to your equipment and as such ECIG ONE accepts no responsibility for the damage caused as this damage is the result of improper construction.

E-Liquids and Drip Tips

Our warranty does not extend to these items due to the nature of the products. For health and safety reasons, as well as hygiene, we cannot offer warranty on either. This is unless our staff determine that the item received is the incorrect item or if there are any other extenuating circumstances.

Atomizers, Clearomizers and Cartomizers

If a product is Dead on arrival. The customer must contact us within 24 hours from receiving the item in order for the warranty to be applicable. 

Contacting us after this allotted period will mean that we cannot offer a refund or return. Please note that this also applies to multipacks. 

Tanks/RDA/RDTA are covered on dead or damaged on arrival we do give a 30 day warranty which if there is any fault with the tank we will refund or replace after the 30days we will not offer a refund or replacement.