6000mAh 21700 Lithium Ion Cell

About Battewill

Battewill is a professional lithium battery manufacturer specializing in custom lithium battery packs and 21700 lithium cells. We focus on high-performance power battery solutions for drones, industrial robots, AGVs and cordless power tools. Our factory delivers cells with strict quality control, built-in safety protections, customizable connectors and BMS systems. With R&D and sales centers in Shenzhen, we supply stable 6000mAh 21700 cells and battery packs to global industrial buyers, providing one-stop power supply solutions for intelligent equipment.

Product Features

• High capacity 6000mAh 21700 lithium ion cell, stable continuous discharge performance
• Low internal resistance design, reduce heat generation during high-current operation
• Long cycle lifespan, maintain high capacity retention after repeated charge and discharge cycles
• Excellent wide temperature performance, works reliably in harsh working environments
• Built-in safety protection structure against overcharge, over-discharge and short circuit
• Compatible for battery pack assembly with BMS for drone, robot and power tool projects
• Consistent cell sorting, low voltage difference among batches for series-parallel connection

Product Specifications

6000mAh 21700 Lithium Ion Cell Description

The 6000mAh 21700 lithium ion cell is a high energy density cylindrical lithium cell upgraded from traditional 18650 batteries. Compared with 18650 cells, 21700 cells have larger volume and higher single cell capacity, so designers can reduce the total number of cells when assembling battery packs. This 6000mAh 21700 battery is widely used for heavy-lift drone battery packs, service robot power modules and high-load cordless power tools. Low internal resistance 21700 cells can output stable high current without severe temperature rise, which is critical for drones that need instant peak power during takeoff and hovering. According to information from NREL (National Renewable Energy Laboratory), the 21700 form factor has become a mainstream cylindrical cell standard for many portable power systems because it balances energy density, manufacturing consistency and safety performance. When building multi-series battery packs for AGV robots or garden power tools, matched 6000mAh 21700 cells with tight voltage matching help avoid uneven aging between cells, extend the whole pack service life. Buyers sourcing 21700 6000mAh cells for drone projects need to verify cell discharge rating and batch consistency, as mismatched cells may cause pack failure under heavy load.

Key Parameters & Pain Points

• 6000mAh large capacity 21700 cell: Reduce cell quantity in battery pack design, save space and weight
• Low internal resistance: Avoid overheating during high current discharge for drone and power tool use
• ≥800 cycle life: Lower replacement frequency, reduce long-term operation cost for robot equipment
• Strict cell sorting: Small voltage difference between cells, prevent single cell over-discharge in series packs
• Wide temperature range: Stable output for outdoor drones and equipment working in cold or hot environments
• Safety built-in protection: Decrease risk of thermal runaway under improper charge or short circuit conditions

Application Fields

• Industrial & Agricultural Drones: Heavy lift drone power packs, long flight time drone battery modules
• Robotics: AGV mobile robots, cleaning robots, service robots and inspection robot power supplies
• Cordless Power Tools: Electric drills, angle grinders, garden tools, portable cutting machines
• Portable Energy Storage: Small power stations, portable camping power banks
• Consumer & Industrial Portable Devices: Medical portable equipment, surveillance cameras, outdoor lighting