

The Efest IMR 18650 3500mAh-20A Battery offers an excellent balance between performance and lifespan.
This battery is capable of delivering 20A in pulse mode, and thanks to its low resistance down to 0.3Ω, it allows for Sub-Ohm use with adequate powers up to 50W safely.
Equipped with a "flat top" type positive pole, the technology used is based on Lithium-Manganese (Li-Mn). The maximum charging voltage of this battery is 4.2V.
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The Efest IMR 18650 3500mAh-20A battery allows for safe Sub-Ohm use with powers up to 50W thanks to its 20A capacity in pulse mode and a low resistance down to 0.3Ω. This versatile battery is ideal for mechanical Mods and electronic Box Mods, offering excellent battery life. The safer (non-explosive) IMR technology based on Lithium-Manganese (Li-Mn) is used with a flat "flat top" positive pole and a maximum charge voltage of 4.2V.
It is strongly recommended to use a 3.7V charger adapted for the Efest IMR 18650 3500mAh-20A battery, which combines performance and battery life. Allow about 2 to 2.5 hours of charge with a Luc V2-LCD Efest charger or the Digicharger D2 Nitecore. Respect charging and discharging intensities and follow safety rules to ensure an optimal life cycle of your batteries.
In case of malfunction of an accessory related to batteries, quickly identify the problem and replace it. Regularly check the resistances of clearomizers, atomizers and rebuildables. Do not use a resistor that has lost its resistive capacity.
Features:
Brand: Efest
Model: 18650
Capacity: 3500mAh
Nominal voltage: 3.7V
Max charge voltage: 4.2V
Max discharge voltage: 2.5V
Max discharge current: 20A
Max charge current: 3A
Nominal charge voltage: 1.6A
Chemistry: Li-Mn (Lithium-Manganese) non-explosive
Protection: Unprotected Battery
Positive pole: Flat top (flat) without nipple
Minimum resistance: 0.25Ω
Dimensions: 65.4 mm x 18.3 mm
Weight: 55 g
Usage:
Use an adapted charger that regulates the charge.
Always fully charge the batteries upon receipt.
Respect the maximum charge and discharge voltages given by the manufacturer.
For flat top batteries, use a magnet to ensure the positive connection on certain Mods.
Do not store batteries with too low a voltage, this degrades their capacity and lifespan. Store them at a voltage higher than 3.6V.
Store batteries in a dry, ventilated and temperate place, in a storage box.
Avoid short circuits and transport batteries in a separate storage box.
Regularly inspect battery-related accessories, especially resistors.
Recycle used batteries in a suitable container.
Data sheet
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