Shenzhen Doublepow Energy Technology Co., Ltd.

Detailed Parameters of 18650 2000mah 3.7v Rechargeable Lithium ion Cell Battery 

Detailed Image of 18650 2000mah 3.7v Rechargeable Lithium ion Cell Battery

Our Rechargeable Battery Certifications

As one of the best professional Rechargeable Battery Manufacturers and Suppliers in China, our company and factory have been awarded the certificate for compliance with the standard ISO9001:2000.

We comply with the Battery Standards,all of our batteries has been tested strictly before leaving factory, to ensure that meet the CE, EMC,SGS requirement and RoHS,UN38.3,MSDS,Drop Test and other laws and regulations.

About Us - Professional Battery Manufacturer and Supplier in China

Shenzhen Doublepow Energy Technology CO., LTD., specializes in the R&D, manufacture, sales and service of various rechargeable battery, battery charger and consumer electrionics. Established in 2012, located in Shenzhen,China.

Our Factory We are proud of our state of the art facility using advanced processing equipment and is approved by the ISO 9001:2008, which span a total of 10,000 square meters, we can turn out over 2,000,000 pcs batteries and 1,000,000 pcs battery chargers monthly production capacity.	Our Team. Compared to other brands, the most valuable asset of "Doublepow" is our team, we have the most professional and top designers who have been in the battery industry for many years, all they are experienced and famous people in this industry.   Our OEM/ODM team spares no effort to meet the needs of all our customers, whether it"s project development, application solutions, or technical support, with customer needs as our top priority.
Our Brands "Doublepow" brand is a professional rechargeable battery manufacturer, we design and manufacture a range of high-quality rechargeable batteries,battery charger and related products. "Doublepow" products have been quite well-known in the domestic market and inside the industry, more and more consumer selected and use of our products,they can get a very enjoyable experience from the use of our products.	Our Products 1. Lithium ion Battery; 2. NiMH Battery and NiCD Battery,CR2,CR123A Battery Universal Battery; 3. Button Cell Battery(Non-rechargeable); 4. Battery Pack and Other Recycle Rechargeable Batteries; 5. Universal and Multifunctional Battery Charger for 1.2V 3.2V 3.7V 9V Battery;

1. What is an 18650 battery?

The 18650 battery is a lithium-ion cell classified by its 18mm x 65mm size, which is slightly larger than a AA battery. They’re often used in flashlights, laptops, and high-drain devices due to their superior capacity and discharge rates. 18650s come in both flat and button top styles, and usually boast 300-500 charge cycles.

2. How long does an 18650 battery last?

Most 18650 batteries will last between 300 and 500 charge cycles, but battery lifetime can be extended far beyond those numbers if charged regularly before complete discharge. All batteries degrade over time, but you’ll often get over a year or two of life from an 18650 depending on your use.

3. What is the best 18650 battery?

The best 18650 battery depends on the needs of the device you use it in. You should choose an 18650 that is slightly above your device"s minimum discharge requirement, and then focus on charge capacity. 

4. What are unprotected 18650s, and are they safe?

Most batteries include protection circuit boards (PCBs) to monitor a battery’s discharge rate and internal temperature. Unprotected cells are often used by experienced users who build battery packs or use 18650s for electronic cigarette and vaping purposes, which often need higher discharge rates than protection circuits allow.

All of our unprotected lithium cells come with a warning regarding improper usage, and we encourage you to read it over before buying an unprotected cell.

5. Why choose lithium over alkaline chemistry?

Lithium batteries are a great option for today"s high-end electronics as these cells typically have higher capacities than their alkaline counterparts. Although rechargeable batteries tend to cost a little more than standard alkaline batteries up front, these costs have reigned in because you won"t need to replace rechargeable batteries nearly as often as alkaline cells.

Of course, these upfront costs are lower when you purchase your rechargeable batteries at Battery Junction. Our selection of 18650 rechargeable batteries from the Titanium Innovations, Samsung, LG, and Nitecore brands are typically priced well below retail and can be even cheaper when purchased in bulk. 

We have just about every size of rechargeable battery that you need, with products including protected and non-protected cells. The protected cells feature a patented Internal PCB protection against under voltage and over voltage. These protected cells are best used in single cell applications because the protection is based on the correct voltage of a single cell.

If you attempt to bundle protected cells as a battery pack, this defeats the purpose of the protection. Battery Junction also has rechargeable batteries in stock that do not have PCB protection and these batteries are perfect for pack building. The bottom line is that if you are a remote control car or airplane enthusiast in need of batteries to build battery packs for these devices, or if you have a high-quality Nitecore or Fenix flashlight that you need to power, Battery Junction is your best source for very high-quality rechargeable batteries available at very reasonable prices with fast shipping on most items.

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