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Efest 21700 5000mAh 10A Batteries 2-Pack

Brand: Efest
Product Code: Efest 21700 Batteries
Availability: In Stock
$24.95 $21.95

Efest 21700 5000mAh 10A Rechargeable Batteries 2-Pack

The Efest 21700 2-pack are high-precision lithium-mn IMR format rechargeable batteries. The Efest 21700 rechargeable batteries hold a great maximum capacity of 5000mAh. Moreover, the Efest IMR 21700 rechargeable batteries are perfect for vape devices and mods. Besides, the Efest IMR 21700 5000mAh batteries employ a flat top plus contact. Therefore, the Efest IMR 21700 5000mAh batteries have a 10A maximum discharge current.

Efest 21700 Batteries Design

The Efest 21700 batteries, designed in purple, weigh 85 grams and measure 21mm by 70mm—the Efest 21700 batteries produced on the most up-to-date machinery feature cutting-edge technologies and product quality control. The Efest 21700 batteries employ durability and perfectly meet all the requirements. Besides, each battery housed in a brand-named cardboard box has a code sticker to verify its authenticity on the official website. 

Efest 21700 Vape Batteries QR Code

The Efest 21700 vape batteries feature a QR code under a protective layer. Moreover, the Efest 21700 vape batteries also feature a QR code printed in the same place on all batteries. The QR code guarantees the originality of the Efest 21700 vape batteries.

Efest 5000mAh batteries Specs

The Efest 5000mAh batteries have a 10A self-discharging rate and long process energy. Also, the Efest 5000mAh batteries are crafted with an entire lifecycle and are better to recharge with the portable Efest iMate R2 charger. Moreover, the Efest 5000mAh batteries need to use with protective devices because they are not protected. The Efest batteries have been certified by CE, RoHS, FCC, and MSDS. 


PET Material

Wear Resisting

Scratch Prevention

Long Term Working

Well-Deserved Reputation


Brand: Efest

Model: IMR 21700 Batteries

Max Discharge: 10A

Capacity: 5000mAh

Max Charging Current: 4A

Standard Charging Current: 2A

Nominal Voltage: 3.7V

Charge Voltage: 4.2V


Positive Side: Flat Top

Chemistry: Li-Ion Battery

Lifecycle: ~ 500

Protection: No

Memory Effect: No

European certification: RoHS, CE

Charging Time: 3 Hours

Length: 70mm [+/- 1mm]

Diameter: 21mm [+1mm /- 1mm]

Charging Temperature Range: 0C-45C

Discharging Temperature: -20C-75C

Weight: 85g

Color: Purple

Efest 21700 Batteries Includes:

2x Efest 21700 Batteries

Safety Tips

The Efest batteries do not have a protection card; please follow these operating conditions:

Charge completely to 4.2V before first utilizing;

Do not charge above 4.2V or above;

Do not discharge below 2.5V;

Do not change the charge of the battery;

Do not short the (+) and (-) terminal of the batteries with metal;

Always observe polarity;

Prevent storage of the battery at a temperature above 45С, protect from fire;

Do not allow contact with water, and never charge them on a wet surface;

Do not drop, scratch, or utilize a damaged one;

After prolonged storage, dialing the rated battery capacity may take several charge/discharge cycles;

If the batteries are no longer usable, recycle them correctly rather than throw them away;

Keep the batteries away from children, pets, and sunlight.

Notice:  The Efest reliable and high-quality batteries are excellent for the most potent vapes, mods, and other high-energy devices. Do not overcharge the Li-Ion batteries or leave them unattended when charging—the Efest batteries retail as one or as two in a box.

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WARNING: This product can expose you to chemicals including nicotine, which is known to be harmful in the State of California to cause birth defects or other reproductive harm. For more information, go to
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