Against the backdrop of continuous breakthroughs in new energy technology, Far East Battery has launched the 21700-6500mAh cylindrical lithium-ion battery, pushing the industry’s capacity ceiling beyond the previous 6000mAh benchmark. This cell not only maintains Far East Battery’s technical strengths in ultra-wide temperature ranges and high energy density but also breaks the physical limits of cylindrical batteries with an 8.3% capacity increase. It injects innovative momentum into the light mobility, smart home, and industrial energy storage markets.
From Consumer Electronics to Industrial Energy Storage: Comprehensive Coverage
As the core unit of lightweight battery packs, the launch of the 21700-6500mAh cell will directly drive upgrades across multiple industries:
1.Consumer Electronics: In smart flashlights and portable power stations, a single cell delivers the runtime equivalent of two traditional 18650 batteries while reducing weight by 20% and volume by 15%;
2.Light Mobility Market: Delivers higher energy-density power sources for e-bikes and e-scooters, extending range by 12%-15% at equivalent battery pack capacity;
3.Industrial Applications: For industrial inspection robots and AGVs, its ultra-wide temperature range ensures reliable operation in extreme environments from -30°C (cold storage) to 60°C (outdoor settings).
Dual Leap in Capacity and Performance
Far East 21700 6500mAh Battery Cell adopts a third-generation high-nickel ternary cathode material system and silicon-carbon anode material. Through nanoscale electrode coating technology and a multi-tab structure design, it achieves a single-cell capacity of 6500mAh and an energy density exceeding 310Wh/kg—all while maintaining the standard dimensions of 21.65mm in diameter and 70.95mm in height.
Compared to the previous-generation 6000mAh product, this cell delivers an 8.3% increase in capacity and a 3.3% boost in energy density, with a cycle life of 1000 charges. It remains fully operational even in extreme temperatures ranging from -40°C to 60°C.
Lab test results show that the cell can deliver 6520mAh capacity (23.5Wh energy output) at 0.2C discharge rate. Even under high-rate 2C discharge, it still provides 6300mAh capacity, meeting the power demands of drones, smart home devices, and other applications. Additionally, its AC internal resistance is kept below 20mΩ, ensuring high safety and stability.