It’s a cylindrical rechargeable lipo battery. The shape looks like an 18650 battery, but our cylindrical lipo batteries come in many different shapes to meet many of your requests.
In the beginning, we produced the cylindrical lipo battery for e-cigarettes. It requests the battery shape be cylindrical and have a longer working time. The other important point is the high discharge current. 18650 battery can meet E-cigarette requests, but the diameter is too big for the E-cigarette. The cylindrical lipo batteries can be made with smaller diameters, higher capacity, and higher discharge currents. We have made more than 100 batteries with diameters and heights from many E-cigarette manufacturers for their different shapes of products. After that, we also found other applications for these batteries, such as electric toothbrushes, wireless speakers, and wireless headsets.

Versatile Applications:

These cylindrical lipo batteries suit various devices, from small electronics like fitness trackers to larger gadgets like electric tools.

Customizable Features:

They can be tailored to specific size, shape, and capacity needs. They fit perfectly into any custom design with options like protective circuits, wire lengths, and connector types (JST, Molex, and Hirose).

Built-In Safety:

These cylindrical lipo batteries ensure safe operation and are equipped with overcharge, over-discharge, short circuit, and temperature control protection circuits.

High Capacity, Low Cost:

Despite their compact size, they deliver high energy density and real-rated capacity at prices that suit different budgets.

Long Cycle Life:

These cylindrical lipo batteries can last over 500 cycles with more than 80% of their capacity retained, ensuring long-term reliability.

Popular Sizes:

The most common cylindrical LiPo batteries include 18650 (18mm x 65mm), 21700 (21mm x 70mm), and 26650 (26mm x 65mm), which can be combined to increase capacity and voltage.

Stock and Custom Orders:

With a rich inventory and the ability to support custom orders, these batteries are accessible to start-ups and established manufacturers.

If you need other sizes of cylindrical shape lipo batteries, 18650/21700/26650 are a good choice. The standard lipo battery 18650 size is 18mm(diameter) x 65mm(length), the 21700 size is 21mm(diameter) x 70mm(length), and the 26650 size is 26mm(diameter) x 65mm(length). They can be made into 2S battery packs or 3P battery packs to increase the voltage and capacities.

Smaller Size | High Capacity | High C Rate Discharge Current | Lower Internal Resistance | Small Order Acceptable