Molicel P42A 4200mAh 21700 batteries are flat-top batteries designed specifically for powering vaping devices and can be used to power any mod device that takes replacement 21700 batteries.
The batteries boast a powerful, long-lasting 4200mAh capacity to reduce charging frequency.
What is the difference between a 21700 and an 18650 mAh battery?
21700 batteries are larger than 18650 batteries, with a size of 21 x 70 mm, as opposed to 18 x 65 mm. They also have a larger battery capacity, which means they can go for longer between charges. The exact battery capacity depends on the brand and battery used.
Can I charge Molicel P42A 4200mAh 21700 batteries overnight?
Lithium batteries should not be left unattended when charging. It is also important to use an appropriate charger, such as the Veho Plug Adaptor. For more information see our battery safety infographic.
What does battery mAh mean?
mAh means ‘milliamp hours’ and basically indicates how long the battery lasts. The larger the mAh of your battery, the longer it will last and the less you will need to recharge it.
What does ‘Amps’ mean in batteries?
Amps (displayed as ‘A’) affects the amount of power the battery is able to produce as Power (Watts) = Amps x Voltage.
Batteries with higher amp ratings will allow a vape device to produce more wattage.
Do note: Battery life is also dependent on the wattage you use the device at as well as amp rating. For example, a 1500mAh battery used at 30W will not last as long as a 1000mAh battery used at 12W.
- Model: INR21700-P42A
- Manufacturer: E-One Moli Energy Corp.
- Size: 21700
- Top Cap: Flat
- Weight: 66g
- Measurements: 21.2mm x 70.1mm
- Maximum charging current: 8.4A
- Maximum discharging current: 45A
- Maximum voltage: 4.2V
- Nominal voltage: 3.6V
- Capacity: 4200mAh
- Maximum Discharge Rate: 30A
Whats in the Box?
- 1 x Molicel P42A 4200mAh 21700 Battery
At E-Cigarette Direct we pride ourselves on providing you with superb after-sales support, and aim to provide rapid replacements for any faulty device under warranty. This page details the warranties you get with your device, and how to get a replacement.
Your charger comes with a 12 month warranty.
All mods and batteries are under warranty for three months.
All clearomisers (tanks) with the exception of CE5 clearomisers are under warranty for six months. CE5 clearomisers (tanks) are under warranty for one month.
Please note - these warranties do not apply to the coil within a clearomiser or tank which is a consumable product as below.
Coils are a consumable product, and as such, will be replaced only if faulty on arrival. Please let us know within 5 days of receipt if your new coil does not work.
What does your warranty mean?
We guarantee that your device is, and will remain, free from defects for the period of the warranty. Please note - this applies to faulty products, and not accidental damage (e.g. dropping on a hard floor!)
The above warranties are subject to our terms and conditions. Please see our full warranty information for further details.
What if the warranty has run out?
We're still here to help! Many problems can be diagnosed and solved (or we can point you towards one of our helpful guides), so send us an email, give us a call for advice or pop into one of our stores for face-to-face support and help.
How do I get a replacement?
In the unlikely event you have a problem with your device, just contact our friendly customer service team on [email protected]
You’ll need to return the item (we can cover a free delivery charge). If we are unable to diagnose and solve your issue, we’ll send you a replacement by Royal Mail First Class. It helps if you have your order number, but if not our team should be able to find your order using your email address.
Delivery & Returns
Hassle Free Returns plus Free Delivery On Orders Over £15
Usually next working day*
Usually 2-4 working days*
Up to £14.99 £3.99 £2.49 £15 to £19.99 £1.99 FREE £20 + FREE -
*Estimated delivery time based on working days and does not include weekends or Bank Holidays. Delivery times vary depending on location so please take into account typical service expectations in your area.
Unfortunately, we can no longer deliver to EU addresses outside the UK due to new EU regulations.
Hassle-Free Returns - & 90 Days to Change Your Mind
Need to return an item? We aim to make the process as easy as possible (it’s also free!)
Just send an email to our friendly customer service team on [email protected], give us a call on 01792 852843 or contact us on chat.
When can I make a return?
When you have an unwanted present or have changed your mind - you’ve got 90 days to decide! Please note this only applies when you have not used the product, and it is in a resalable condition.
You have a faulty product under warranty.
You can see our full returns policy in our terms and conditions.
Not in the UK?
You can see the full list of countries we deliver to here.
The Right and Wrong Ways to Treat Batteries!
Battery Safety Information
- Ensure you use the correct charging equipment for your e-cig (see below).
- Charge batteries on a hard surface.
- Turn your battery off when not in use.
- Use damaged batteries.
- Leave charging batteries unattended.
- Allow contact between your batteries and water.
- Carry in a pocket with coins or keys. (The Kbag is a great way to carry batteries securely and safely).
- Expose your battery to sunlight, extreme heat or cold.
For more information see our E-Cig Battery Safety Infographic.
Recommended Charging Equipment
We recommend the Veho Plug Adaptor and the Nitecore Intelli charger (for external batteries). Both are high quality devices from a reputable manufacturer, have performed well in testing and have the right voltage output for e-cigs.
Extending Your E-Cig Battery Life
With regular usage, your e-cig battery will usually last for 3 months, although they can last longer. The following steps can help extend the life of your battery
1. Cleaning your battery terminal. The most effective way to do this is to use a cotton swab soaked in alcohol, but you can also clean it with a tissue or a cotton swab.
2. Keeping your battery charged. Keeping some charge in your battery can extend your battery life, especially if you go for some time without using it.