32700 6.4V 5000mAh Special Lithium Battery

Technical parameters and characteristics
Basic configuration
Voltage and Capacity: It is composed of two 32700 3.2V 5000mAh lithium iron phosphate single cells connected in series, with a nominal voltage of 6.4V, a capacity of 5000mAh, an energy of approximately 16Wh, an internal resistance of ≤12mΩ (AC 1kHz), a cycle life of ≥2500 times (1C charge and discharge, capacity retention rate ≥85%).
Physical characteristics: The dimensions are 32mm in diameter × 70mm in length ×2 sections connected in series, with a weight of approximately 240-300g. Customized packaging is supported (such as steel shell cylinders, built-in protection plates, and heat dissipation modules).
Charging and discharging performance: Supports 1.2C fast charging (6A charging, approximately 50 minutes to fully charge), maximum continuous discharge current 15A (3C), pulse discharge current 25A (5 seconds), stable voltage platform (3.2-3.3V fluctuation < 3mV), self-discharge rate < 1.5% per month.
Temperature adaptability: Operating temperature -25℃ to 65℃, storage temperature -20℃ to 45℃. At low temperatures of -25℃, the capacity retention rate is ≥70%. At high temperatures of 65℃, it is necessary to avoid full charge storage.

Materials and Structures
Cathode material: Lithium iron phosphate (LiFePO₄) adopts nano-modification + carbon coating process, with ionic conductivity increased by 30%, thermal decomposition temperature over 800℃, and no risk of thermal runaway.
Negative electrode and electrolyte: Graphite negative electrode + composite carbon coating, electrolyte containing VC/FEC additives, separator is a nano-scale polyolefin porous membrane, supporting rapid ion transport.
Packaging design: Steel shell compressive strength ≥500kgf, built-in dual safety valves +PTC explosion-proof components, supports flat head/pointed head design (pointed head with intelligent BMS protection board), compatible with standard 32700 battery compartment, and can be optionally equipped with heat dissipation fins or liquid cooling modules.

Core advantage
Safety
It has passed UL1642, IEC62133, UN38.3 and other certifications. There is no combustion or explosion in the needle puncture, compression and overcharge tests, and it meets the safety standards for air transportation.
It has no memory effect, low self-discharge rate and small long-term storage loss.
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℃ ≥75%).
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, making it suitable for scenarios that require continuous high power output.

Application scenarios
Energy storage systems: home energy storage, solar/wind energy storage, UPS backup power supply, communication base stations (dedicated for 5G base stations), small-scale energy storage power stations.
Power and Tools: Electric bicycles, electric motorcycles, electric drills, electric saws, electric screwdrivers, drones (medium-range models), AGVs (Automated guided Vehicles), electric forklifts.
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).
Special scenarios: outdoor adventure equipment, ship/railway transportation, emergency power supply (fire/rescue), renewable energy storage (photovoltaic/wind power).