IMREN 21700 4000mAh 35A Rechargeable Lithium Battery (2 Batteries/Pack)

$20.00 $28.99

In stock

IMREN 21700 4000mAh 35A Steady Current High Drain Rechargeable Battery


The battery is rated by IMREN Lab at 4000mAh, with a pulse and burst rate of 35.12A. Built specifically for devices that need a stable current and long time use. Stability security and high burst rate were the top concern when we designed. It allows for consistent performance and reliability, backed by rigorous testing for safety and quality assurance. You deserve a reliable power source that you can trust.


  • [Big Capacity] Enjoy an impressive 4000mAh capacity, providing extended runtime for your devices, reducing the need for frequent recharging.
  • [Steady High Drain] With a robust 35A steady current, this battery is tailor-made for high-drain applications like mods, ensuring consistent and reliable power output.
  • [Enhanced Performance] Elevate your devices' performance with this high-quality battery, ensuring smooth and uninterrupted operation even in demanding scenarios.
  • [Longevity] Benefit from its long cycle life, which allows for numerous charge-discharge cycles without significant capacity loss, ensuring a longer-lasting power solution.
  • [Versatility] Suitable for a wide range of devices and applications, from mods to high-performance flashlights, the IMREN 21700 4000mAh is a versatile power solution for various needs.

Bulk Discounts & Prices

We also provide bulk prices and discounts for buyers.

The price will be automatically reduced when you checkout. Please send us if you found anything wrong with the price. We will resolve this for your order(s).

Quantity Discount
3-5 Packs 2% off
6-9 Packs 5% off
10-100 Packs 8% off
Above 100 Packs 12% off


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Generally, orders are shipped within 2-3working days of order confirmation/payment. Orders made on the weekends might experience delays.

Our warehouse only operates on Monday – Friday during standard business hours, except on holidays. In these instances, we take steps to ensure shipment delays will be kept to a minimum.

Shipping Policy

If you need to amend your delivery address because there is a missing house number or postcode, this will be free of charge.

If we can't change the address for you, we'll let the courier know so they can make the change before delivering your order. A $5 fee will apply after a successful amendment.

If the order has been delivered to the original address successfully, a $15 amendment fee will apply.

There is a 1% chance that the products are damaged during shipping. If this happens, please contact our customer service team immediately.

All logistics time is the time required after the parcel is sent. The warehouse will normally send the package out within 24 hours. If you place an order on Saturday and Sunday (Or Holidays), your package will be send out on Monday(Or the first work day after the holiday)

Total Delivery Time = Processing Time + Shipping Time (depending on your location)

You can read more details on the Shipping Policy

Returns Policy

If you are unhappy with your purchase, as long as you contact us within 30 days of the receipt of the item, we will process your return/exchange request. Any request after 30 days will not be honored. Please make sure to contact us by email: at first. You can read more details on the Return & Refund Policy page.