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Imren 21700 3750mah 40A

Brand: Imren
Product Code: Imren 21700 3750mAh
Availability: In Stock
$19.95 $11.95

IMREN 21700 Battery 3750mAh 40A

The IMREN 21700 battery 3750mAh 40A is a rechargeable battery that employs 3750mAh and features a cylindrical form with a lithium-iron-phosphate structure. In addition, the IMREN 21700 battery 3750mAh 40A employs a flat top and gold wrapper for more durability. Moreover, the IMREN 21700 40A rechargeable battery holds a continuous discharge rate of 25 Ampers and a maximum discharge rate of 40 Ampers. Therefore, the IMREN 3750mAh 21700 battery is the best option for protective devices. 

IMREN 3750mAh 21700 Rechargeable Battery Design

The IMREN 3750mAh 21700 rechargeable battery is modest in size, weighs 47 grams, and designed in the yellow shade, and has dimensions of 21mm by 70mm. More than that, the IMREN 3750mAh 21700 rechargeable battery feature a 40A discharge current rating and has long cycle life. In addition, the IMREN 3750mAh 21700 rechargeable battery is packed in a branded ABS material box and then in a cardboard box with an IMREN logo design. Furthermore, the IMREN 3750mAh 21700 rechargeable battery has a printed QR code with a scratch-off authenticity sticker. Thanks to this code, the user scans the originality of the battery on the official IMREN website.

IMREN 21700 Battery 3750mAh 40A Lifespan

The IMREN 21700 battery 3750mAh 40A manufactured on the most modern equipment utilizes innovative technologies and strict quality management of the products. As a result, the IMREN 21700 battery 3750mAh 40A features durability and fulfills all the stated parameters. The IMREN 21700 40A battery charges in ~ three hours, and 3200mAh provides a long operating time. Moreover, the IMREN 21700 battery 3750mAh 40A feature around 500 cycles, like most rechargeable batteries. Such a type of battery is better to charge with a Nitecore i2 Charger.


Brand: IMREN

Model: IMR 21700 

Continuous Discharge: 25A

Maximum Discharge: 40A

Capacity: 3750mAh

Nominal Voltage: 3.7V

Charge Voltage: 4.2V


Positive Side: Flat Top

Material: Li-Ion Chemistry

Life Cycle: 500+ Charges/Recharges

No Protection

No Memory Effect

Rechargeable: Yes

Charging Time: ~ 3 Hours

Operating Temperature:

Charging: 0 ~ 45°C

Discharge: -20 ~ 60°C

Storage temperature:

1 month: -20 ~ 60°C

3 months: -20 ~ 40°C

1 year: -20 ~ 25 ° C

Length: 70mm [+/- 0.1mm]

Diameter: 20mm [+1mm /- 1mm]

Weight: 47g

Color: Yellow


1x IMREN 21700 3750mAh Battery

Safety Advice
The IMREN  battery doesn`t 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 batteries;
Do not short the (+) and (-) terminal of the battery with metal;
Always observe polarity;
Prevent storage of the battery at a temperature above 45°С, 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 battery is no longer usable, recycle it correctly rather than throwing it away;
Keep the battery away from children, pets, and sunlight.

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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 www.P65Warnings.ca.gov.
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