3S 11.1V 21700 Lithium Battery Pack

21700 battery pack is an upgraded option of the 18650 battery pack, offering larger capacity, higher energy density, and faster efficiency. With 15 years of experience in customizing 11.1V 21700 battery packs, we deeply understand our customers’ needs and have the expertise to support them in developing their 3S 11.1V 21700 lithium battery pack solution. Furthermore, our 3S 11.1V 21700 battery pack is widely used in high-power medical devices, IoT equipment, and power tools.

Features of Custom 11.1V 21700 Li-ion Battery Packs

• High-Quality Cells: We use 21700 cells from brands like BAK, Samsung, and Panasonic to ensure high performance and a long lifespan.
• High Safety: The built-in UL-certified protection circuit board provides overcharge, over-discharge, and short-circuit protection. Moreover, we also conduct raw material inspections, pack testing, and aging tests during production to ensure your product’s safety.
• Customization Options: Choose from different capacities and discharge rates, with various connector options like XT30 and DC ports to ensure compatibility with a wide range of devices.
• Multiple Enclosure Choices: You can choose from PVC shrink wrap, metal casings, and waterproof designs to suit different environmental requirements.