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Eleaf iStick 20W 2200mAh Mod Battery

Product Code: MOS1885

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  • Low Stock


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Eleaf iStick 20W Mod

Genuine Eleaf iStick 20W mod/battery with easy-to-use variable voltage/wattage settings.

This item is intended for users with some experience of vaping. Please read our page about user levels to learn more. Please also take note of our safety notice below regarding the use of sub-Ohm coils with this device.

The box comes with a scratch sticker so you can check the authenticity of this product.

This listing is for the iStick 20W battery only. It does not come with a tank or e-liquid.

Product features

  • Battery capacity of 2200mAh
  • 5-click on/off button
  • Variable voltage 3V-5.5V
  • Variable wattage up to 20W
  • iStick 20W does not support coils lower than 1.0 Ohm (so do not use the CS/GS 0.75 Ohm coil with this device)
  • OLED screen will display battery charge level, atomizer resistance, wattage and voltage
  • Various safety protections (short circuit, atomizer short circuit, low voltage etc)
  • 10 second safety cut-off
  • USB passthrough which means you can use the device while it's charging
  • Size is 74mm x 31mm x 20mm
  • Complies with European CE and RoHS standards


  • Standard 510 male connection (ideal width for tanks up to 20mm diameter)
  • Standard eGo female connection (use the eGo adapter included)


  • When your battery is not in use, TURN IT OFF (this is how they explode in trouser pockets!)
  • DON'T leave batteries unattended while charging (disconnect if you leave the vicinity, go out or go to bed)
  • DON'T store your batteries with keys or metal objects
  • DON'T store your batteries in pockets where they're more likely to come into contact with other metal items, and dust and debris
  • DON'T charge with a charger that charges with too much current for your battery
  • Please click HERE for full details about battery storage, safety and charging

Safety Notice

Sub-Ohm tanks and coils must be used by experienced and knowledgeable users as additional safety precautions must be practiced when using these items. These products need to work on a mod/battery capable of firing at sub-Ohm resistances. So, for example, if you have a 0.5 Ohm coil in your tank, your mod/battery must be capable of firing at 0.5 Ohm resistance, or lower. You also need to ensure your device can cope with the amps. Improper use can lead to physical injury and damaged equipment.

1 x Eleaf iStick 20W 2200mAh Mod/Battery

1 x 510/eGo Adapter (so you can use both eGo and 510 style tanks)

1 x USB Charger

1 x Instruction Manual

What size mAh Mod Battery

For more information about battery capacities, ie 2200mAh, 5000mAh etc, and how long your mod battery is likely to last between charges, please see our article called what size mAh battery.

Important safety information about e-cigarette batteries and chargers

Users of electronic cigarettes must be very cautious when charging and using all types of rechargeable lithium-ion batteries and this includes built-in mod batteries.

If misused, mistreated or mishandled, lithium-ion batteries pose a serious safety issue.
Please familiarise yourself with best practice and play it safe.

  • BE AWARE - lithium-ion batteries can provide very high currents
  • BE AWARE - they can also discharge very quickly when short circuited
  • BE AWARE - when a battery discharges too rapidly it can result in overheating, rupture or explosion
  • BE AWARE - take care not to over-tighten the screwed connection because this can cause damage
  • DON'T leave batteries unattended while charging (disconnect if you go out or go to bed)
  • DON'T heat, incinerate or reverse polarity (don't put a battery in the wrong way)
  • DON'T over-charge or over-discharge
  • DON'T store your batteries with keys or metal objects because this can result in short circuit
  • DON'T store your batteries in pockets as they're more likely to come into contact with other metal items and cause a short circuit
  • DON'T charge with a charger that charges with too much current for your battery
  • DON'T USE batteries that have signs of the plastic wrapper of film peeling off because short circuits are more likely
  • DON'T over-tighten the screwed connection because this can cause damage
  • DO remove batteries from the charger as soon as they are fully charged (usually when the light turns green)
  • DO always follow the manufacturer's advice and guidance for your particular product
  • STOP using a battery if it stop performing correctly, for example if it's not holding its charge or it appears damaged in some way
  • STOP using your batteries or device if you feel excessive heating
  • ONLY use the correct charger supplied with your kit (do not mix and match components)
  • CHARGE in a fire-proof charging bag or on a fire-proof surface (never a combustible surface)
  • LOOK OUT for the CE mark that indicates chargers comply with European safety standards
  • CLEAN the battery centre pin and charger contact at least once a week with tissue or alcohol wipes
  • BATTERY PAIRS - ensure the batteries are of the same charge level, 'marry up' pairs to ensure the workload is evenly spread
  • INSPECT regularly the battery or battery area of your device for any sign of overheating such as swelling or blistering, if signs of overheating are evident, no matter how small they may be, stop using the device immediately

We will not be held responsible for damage if there is any modification of the batteries or chargers in any form.

We are not responsible for any damage or injury caused by the misuse, mishandling or mistreatment of lithium-ion batteries and/or chargers.

New batteries

All lithium e-cig batteries need to have some charge in them to stay healthy, so they come part charged and ready to use.

The first time you recharge your battery ensure you give it a full charge which could take 4-5 hours, depending on the battery.

Don't overcharge the battery, when it's charged and the light on the charger indicates charged, remove the battery from the charger.

Battery Safety Information

Important notes about charging batteries

  • Ensure you have a good quality charger.
  • Always use the correct charger for the battery you are charging.
  • Never leave batteries unattended while charging, unplug before you go to bed or go out.
  • Don't charge batteries on combustible surfaces such as carpets or surfaces that could be damaged by heat.
  • When the battery is fully charged unplug it. Ideally let the battery rest for a few hours after charging.
  • Don't let the battery drain of power completely, it's recommended to recharge the battery when it is low on power, not totally empty.
  • Don't leave the battery without any power at all when it's not in use - this can result in a less usable battery.
  • Don't heat or incinerate batteries.
  • Don't charge damaged batteries.
  • If a battery becomes hot when you're charging it, stop charging immediately and let it cool down before you handle it further.

If you're using a mod with removable batteries, the manufacturer often recommends that it is advisable to remove the batteries and to charge them separately, ie don't charge them in situ via the USB.

How to store and look after your batteries

Storing batteries properly extends the life of the battery and keeps them from becoming a safety hazard.

  • Store batteries away from metal objects including items such as keys and coins (so avoid leaving them in your pocket).
  • Store batteries in a dry, cool place which is not subjected to extremes of temperature or humidity.
  • If you live in a hot location batteries can be stored in a refrigerator (but don’t freeze them). If you do this, you must seal them in an airtight plastic bag to maintain the right moisture level.
  • When storing lithium batteries for a period of time, ideally leave them about 40% charged - this minimises degradation and allows the battery to slowly discharge itself, which is crucial for its operational health.
  • Always store batteries with the positive and negative terminals away from each other so they can’t begin conducting electricity idly.
  • Avoid storing new and old batteries together because there is a risk that the newer ones will conduct electricity into the older ones.
  • Dispose of batteries safely and in accordance with regulations (this is likely to be a specific lithium-ion facility at a recycling centre).

Regular cleaning of your e-cig battery is essential

Good clean contact between your e-cig battery and clearomizer/tank is essential for the best heat, vapour and flavour, so regular cleaning is essential (every couple of weeks or so for example).
Rubbing alcohol/surgical spirit on a Q tip/cotton bud is ideal. Clean the outside of the connection/contact area (for eGo batteries) and the inside too ensuring that you hold the battery upside down so gravity can take away any excess fluid. Paper towel can be used to dry the area if necessary.

For stubborn grime a cocktail stick is ideal for the threaded grooves, taking care not to break it off inside the battery, but don’t use anything metal.

Problems with batteries and charging - what can go wrong?

Batteries are tested before they leave the manufacturer but this doesn’t mean there will never by a faulty battery in circulation. However, if you’re having problems with a battery (and it’s relatively new) there are other things to consider and eliminate.

If you’ve purchased batteries from one source and chargers from another there may be a compatibility problem, ie a slight difference in the size of the battery thread and the tank device or, and this is much more serious, the charger may not be intended to charge your particular e-cig battery and there may be voltage issues and therefore a serious safety risk.

There is an inherent risk with the use of any battery

Use special caution when working with e-cigarette batteries as they are very sensitive to charging characteristics and may overheat or explode if mishandled or misused.
The user must ensure they have sufficient knowledge and take sufficient care in charging, discharging, assembly and storage.

Healthy Start Ltd is not responsible for damage if there is any modification of the batteries or chargers nor is Healthy Start Ltd responsible for any damage caused by the misuse and/or mishandling of any batteries and chargers.

Healthy Start Ltd will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use, due care and attention and storage of batteries.

Product Warranties

Use this link for our returns and refunds policy.

Electronic Cigarette Co (Healthy Start Ltd) offers the original buyer product warranties as set out below, which become effective from the date of purchase. During the warranty period, we will, at our discretion, repair or replace items that are defective.

These warranties give the purchaser specific limited rights, in addition to those rights under applicable local law. There are one or two exceptions, therefore, if an individual product page on our website stipulates a specific longer or shorter warranty period, that warranty takes precedent over those below.

Our warranties never provide cover for physical damage, misuse, or breakages.

Scratches and discoloration from regular use is considered normal wear and tear and is not covered by warranty.

Manufacturers are likely to require their serial number before providing a replacement item. This is due to the increasing amount of counterfeits in circulation. Please keep your packaging with the serial number, or take pictures of it before you discard it.

Batteries (eGo and 510 style)

Rechargeable e-cigarette batteries, both eGo and 510 style, come with a 28 day warranty and have a life expectancy of anything from 3 - 9 months, depending on usage and brand. The guarantee covers any manufacturing defects and any repairs, or replacements, if deemed to be faulty or beyond repair. The warranty doesn't provide for physical damage, misuse, or general wear and tear. Ensure you treat your battery well. Click here for our e-cig battery problems page for further information.


USB chargers, wall chargers, USB car chargers and other battery chargers are covered by warranty for a period of 28 days. Physical damage, misuse, and general wear and tear are not covered.


These are consumable items lasting anything from a few days to a couple of months and there is no warranty applicable. Issues with coils are often caused by improper priming, letting the tank run low or drawing too frequently. Please click here for more information about how to prime e-cig coils correctly and it will guide you through to coils burning too. Coils are sold as a single-use disposable item and are covered by a DOA (dead on arrival) warranty only.

Drip Tips/Mouthpieces

These items are non returnable and are not covered by warranty but defective items will be refunded or replaced.


Defective liquids will be replaced or refunded. This applies to e-liquid that is out of date or has a manufacturing defect.

Lithium-ion Batteries (18650 etc)

These consumable items are not covered by a warranty. Expect a typical lifetime of 300 charges when used properly.


Box style mods are covered for 90 days from date of purchase. The guarantee covers manufacturer defects and any repairs, or replacements, if deemed to be faulty or beyond repair. The warranty does not cover misuse, damage or general wear and tear. Any replacement provided does not increase the original warranty period.

Pod Kits

Pod style kits are covered for 90 days from date of purchase. The guarantee covers manufacturer defects and any repairs, or replacements, if deemed to be faulty or beyond repair. The warranty does not cover misuse, damage or general wear and tear. Any replacement provided does not increase the original warranty period.

Standard Kits

The kits comprise many parts and it's the individual parts that would be subject to their individual warranty cover, for example, an eGo or 510 style battery will usually be 30 days. Physical damage, misuse, or general wear and tear is not covered.


The tank itself should last quite some time (usually many months). The heating element inside (the atomizer or coil head) will need to be replaced regularly (1 to 2 weeks on average). Both the tank and the coil heads are covered for faulty on arrival only (DOA). Take great care not to lose the seals on the tank or it will cause it to leak.

Please be aware that plastic/polycarbonate tanks are not recommended for use with abrasive e-liquids or particularly acidic e-liquids such as some fruit flavours. Some ingredients in e-liquid can cause cracking, frosting or even melting of plastic tanks. Abrasive and acidic flavours and flavourings include, but are not limited to, absinthe, cinnamon, spearmint, citrus fruit, cola etc. Please bear this in mind if you're using an e-cig with any type of plastic tank. Glass and metal tanks are impervious to these ingredients and are suitable for all e-liquids.

Rebuildable Atomizers & DIY Wire

There is no warranty applicable but manufacturing faults are covered.

General Conditions

Healthy Start Ltd T/A Electronic Cigarette Co makes no other express or implied warranty or condition whatsoever, whether written or oral, and expressly disclaims all warranties and conditions not stated in this Limited Warranty.

To the extent allowed by the local law of jurisdiction outside of the EU. Electronic Cigarette Co disclaims all implied warranties of merchantability and fitness for a particular purpose. For all transactions, any implied warranty of condition of merchantability, satisfactory quality, or fitness for a particular purpose is limited to the duration of the express warranty set forth above, and never more than the warranty conditions.

Some states or countries/regions do not allow a limitation on how long an implied warranty lasts or the exclusion or limitation of incident or consequential damages for consumer products. In such states, or countries/regions, some exclusions or limitations of this Limited Warranty may not apply to the purchaser.


These warranties do not apply to defects resulting from misuse, physical damage, improper or inadequate maintenance, improper charging or use of alternative charging adapters, or unauthorised modifications and tampering.

Our Guide to Vaping

We have lots of useful information, guidance and helpful tips regarding vaping, plus you'll be able to read about common problems (and solutions) ...

Learn More