The Efest IMR 18650 3500mAh battery can be used in a range of vape devices and kits.
The 18650 is the most common rechargeable battery and offers a good balance between power output and battery capacity. Always check compatibility between your device and battery before use.
Check out our Battery Safety Guide for tips on keeping your batteries in tip-top condition.
Please Note: The Pulse Discharge Rate refers to the maximum output of a fully charged battery, the Continuous Discharge Rate refers to the maximum power output of a battery regardless of its level of charge.
We always recommend that you do not attempt to work outside of the max Continuous Discharge Rate when using these batteries with an unregulated or regulated vape device.
THERE ARE RISKS ASSOCIATED WITH THE SPECIALIST BATTERIES USED IN E-CIGARETTES. YOU MUST FOLLOW THESE SAFETY REQUIREMENTS. WE WILL NOT BE LIABLE FOR DAMAGE CAUSED BY IMPROPER USE OR STORAGE OF BATTERIES.
If liquid leaking from a battery gets in your eyes, don’t rub your eyes, wash them with clean water and seek medical attention immediately. Ensure that the battery is disposed of immediately and that any liquid that has leaked from the battery is contained and removed as it may cause explosion or fire.
Each country has its own rules on the disposal of batteries. Please ensure that you dispose of the batteries in accordance with local regulations.
For more information about battery safety please see our Safety Tips For Vape Batteries.
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By Richard from Prudhoe
At 3500 mAh you get a long lasting battery, especially at the wattages I use - generally 40/50 watts maximum. Sometimes I've used one at around 20 watts when I'm going back to the old MTL days on my Aspire Nautilus. Yes, it's still going & coils still available.
Anyway, at these sub 50 wattages, you're safe from exposing yourself to the low 10 amp discharge rate.
So if you're a high watt and/or unregulated mod vaper, I'd go for something safer.
For some reason they're a fraction larger than other batteries but have only been a bit of a tight squeeze in a couple of my mods. No real problem here though.
Anyway, whatever wattage I vape at, they last a long time - noticeably longer than others I've used.
I have a few of these now & I've never had a problem.
So, overall, good value for money.
By Natab from Nottinghamshire
I’ve always preferred the efest batteries to the Samsung ones as I feel they last longer and hold charge better. For me the price is a better value for the product you receive which is why this is the only battery I buy