21700 Battery: Replacement Lithium Ion

21700 Battery: Replacement Lithium Ion

Replacement Lithium-ion Battery, 21700 for use with the VADER, and the meter of our VoltTab. 

The Lithium Ion Battery 21700 is a high quality, reliable replacement battery for VADER and VoltTab meter. Built to perform, this lithium-ion battery is a powerful energy source to keep you going on the go.

With 21700 spec, this battery is compatible with many devices, a versatile and convenient power solution for many applications. When choosing a 21700 battery, note the difference between button top and flat top: button top batteries have an extended positive terminal which may affect compatibility with some devices, flat top batteries sit flush with the device’s contact point. A good contact between the battery and device is key to performance. Whether in the field or working on a project that requires reliable power, the BAT650 battery is the way to go to stay connected and productive.

Featuring advanced lithium-ion technology, this battery has a long lasting charge that is efficient and sustainable. The 21700 format was designed to have higher capacity and efficiency than previous models. You can count on its durability and endurance to get you through your day without having to recharge often.

Built to M.C. Miller standards, the BAT650 replacement battery is a great option for professionals and enthusiasts. The BAT650 is a protected battery with built-in safety circuits to prevent overcharging, overdischarging and short circuits. Keep your equipment powered up and ready to go with this premium battery that combines performance, reliability and longevity.

Introduction and Features

The 21700 battery is a high performance, rechargeable cell designed for high energy efficiency and power delivery. With a standard diameter of 21mm and length of 70mm, these batteries are slightly longer than the 18650 format and can hold more capacity and runtime. Key features of the 21700 battery are high capacity, high energy density and reliable performance, making them suitable for demanding applications like electric vehicles, power tools and renewable energy storage systems. The nominal voltage is typically 3.6V to 3.7V and can power a wide range of devices. Whether you need a battery for flashlights, headlamps or vaping devices, the 21700 is designed to deliver the extended runtime and efficiency for both everyday and special use.

Specifications

21700 batteries have various specifications for different applications and chemistries. The full charge voltage is 4.2V, cutoff voltage is 2.5V to 3.0V to protect the battery from over discharging. Capacity is from 3000mAh to 5000mAh, some high drain models can support continuous discharge rate of 30A, 40A or even higher. The cycle life is from 500 to over 1500 charge cycles depending on usage and maintenance. Advanced safety features like overheat protection, overcharge protection and short circuit protection are built in to ensure reliable operation. The chemistry of 21700 batteries varies, lithium iron phosphate for safety, lithium manganese oxide for high discharge rate, lithium cobalt oxide for maximum energy density. These specifications make 21700 batteries a versatile and robust option for many power needs.

Integration with Energy Systems

The integration of 21700 batteries in modern energy systems has changed the way we store and manage power. 21700 batteries are used in battery packs for solar and wind energy systems, to capture excess energy and provide a stable supply when needed. By connecting 21700 batteries to external battery management systems, users can monitor health, prevent overcharging and over discharging, to ensure optimal battery health and longevity. This seamless integration not only improves energy storage systems but also supports backup power supplies during outages, reducing grid dependence. Multiple 21700 batteries can be connected in series or parallel to create scalable solutions for specific power and performance requirements, making them an essential component in both residential and commercial renewable energy applications.