26650 3.2V 3600mAh Special Lithium Battery

Technical parameters and characteristics
Basic parameters
Voltage and capacity: Nominal voltage 3.2V, charging cut-off voltage 3.65V, discharging cut-off voltage 2.5V, typical capacity 3600mAh, energy approximately 11.52Wh, internal resistance ≤25mΩ (AC 1kHz), cycle life ≥2500 times (1C charge and discharge, capacity retention rate ≥85%).
Physical properties: The dimensions are 26mm in diameter × 65mm in length (standard size of 26650), with a weight of approximately 90-110g. Customized packaging is supported (such as steel shell cylinders, built-in protective plates).
Charging and discharging performance: Supports 1.5C fast charging (5.4A charging, fully charged in about 1 hour), maximum continuous discharge current 10.8A (3C), pulse discharge current 18A (5 seconds), stable voltage platform (3.2-3.3V fluctuation < 3mV).
Temperature adaptability: Operating temperature range -25℃ to 60℃, storage temperature -20℃ to 45℃. At a low temperature of -25℃, the capacity retention rate is ≥75% (with a heating system). At a high temperature of 60℃, it is necessary to avoid full charge storage.

Materials and Structures
Cathode material: Lithium iron phosphate (LiFePO₄), nano-modification process enhances ionic conductivity, thermal decomposition temperature > 800℃, no risk of thermal runaway.
Negative electrode and electrolyte: Graphite negative electrode + composite carbon coating, electrolyte is a highly stable lithium salt organic solvent, separator is a nano-scale polyolefin porous membrane, supporting rapid ion transport.
Packaging design: Steel shell compressive strength ≥500kgf, built-in dual safety valve explosion-proof, supports flat head/pointed head design (pointed head with intelligent BMS protection board), compatible with standard 26650 battery compartment.

Core advantage
Safety
It has passed strict certifications such as UL1642, IEC62133-2:2022, and UN38.3. There is no combustion or explosion in the needle-puncture, compression, and overcharge tests, meeting the safety standards for air transportation.
It has no memory effect, a self-discharge rate of less than 2% per month, minimal long-term storage loss, and supports immediate charging and use.
Durability
The cycle life exceeds 2,500 times, which is 6 to 10 times that of lead-acid batteries. High-temperature resistant (operating at -25℃ to 75℃), with optimized low-temperature performance (3C discharge capacity at -25℃ ≥80%).
Environmentally friendly and non-toxic, its carbon emissions throughout the life cycle are 30% lower than those of ternary batteries, and it complies with the EU REACH and RoHS standards.
Performance
The energy density is approximately 140-170Wh/kg, supporting high-rate charging and discharging (3C discharge temperature rise < 35℃), with a stable voltage platform. It is suitable for scenarios that require continuous high power output, such as power tools and energy storage systems.

Application scenarios
Energy storage systems: Home energy storage (such as Tesla Powerwall compatible models), solar/wind energy storage, UPS backup power supply, communication base stations (dedicated for 5G base stations).
Power and Tools: Electric bicycles, electric motorcycles, small electric vehicles, electric drills, electric saws, electric screwdrivers, drones (long-range models), AGVs (Automated Guided Vehicles).
Lighting and equipment: High-intensity flashlights, outdoor searchlights, solar street lamps, portable medical equipment (such as defibrillators, ventilators), military equipment (such as individual soldier communication equipment, night vision devices).
Special scenarios: outdoor adventure equipment, ship/railway transportation, renewable energy storage (photovoltaic/wind power), medical implant devices (requiring high safety), emergency power supplies (fire/rescue).