21700 Lithium Battery

Showing 3 of 3 products
Filter Products

Filter Products

Showing 3 of 3 products


The highest price is <span class='money'>$30.95</span>


Showing 1 -3 of 3 items

1. Is the 21700 Battery More Durable Than the 18650?

Yes. 21700 batteries are superior to 18650 batteries in terms of energy density, internal resistance, heat dissipation, safety, and manufacturing process. 21700 batteries have a higher energy density. For the same volume, 21700 cells have better endurance and relatively longer life.

At the same time, the charging and discharging efficiency of the 21700 lithium ion battery is higher, the heat generation is lower, and the loss of battery life is less.
Besides, the production process of 21700 rechargeable batteries is more advanced compared to 18650, which can better ensure the consistency and stability of the battery.
21700 batteries are versatile and widely used in motorcycle batteries including portable, power, miniature, and smart batteries. In addition, these batteries provide DC power and standby power for high-capacity electric batteries in cars, ships, aircraft, unmanned vehicles, and more. They are also used in other applications, such as powering home lighting systems.
Most 18650 chargers can charge 21700 batteries since they are similar in size and fit into the same charger slot. However, it is best to check the charger's specifications to ensure that it supports charging 21700 cells.

Additionally, verify the charger's compatibility list or follow the charger's instructions to make sure the battery size matches. These measures can help to ensure safe charging.
Sure. Feel free to contact our customer service team at sales@batteryint.com for your specific needs.
When contacting us, please provide essential information. Include the type of equipment the 21700 rechargeable battery will power. This helps determine if a capacity or power battery is needed. Also specify the operating voltage and capacity range you require.

Moreover, if your battery setup includes connectors, we would appreciate clear images from multiple angles and both the front and back. We look forward to crafting the perfect battery solution for you!
21700 batteries usually have a long life, generally up to 3-5 years, but actual life will depend on storage conditions and frequent charging and discharging. It is recommended that they are stored in a dry and cool environment to avoid high temperatures and humidity. And it's best to check the battery status regularly to ensure safety and performance.
When using 21700 batteries, use a charger specifically designed for them and follow the manufacturer's charging guidelines to avoid overcharging or over-discharging.
When storing, keep the batteries in a dry environment, avoid extreme temperatures, and ensure that they are partially charged before long-term storage. Besides, regular use is recommended to maintain optimum performance.
Customers can return or exchange the product without any reason within 7 days of receipt.
A full refund or replacement is available within one year if the product has quality issues or damages. Additionally, we offer a 24-hour rapid refund service to enhance our service quality and your satisfaction.