18650 3.2V 1200mAh Special Lithium Battery

Technical parameters and characteristics
Basic parameters
The nominal voltage is 3.2V, the charging cut-off voltage is 3.6-3.65V, and the discharging cut-off voltage is 2.0-2.5V (in some scenarios, it can be reduced to 2.0V).
Typical capacity: 1200mAh, energy: approximately 3.84Wh, internal resistance: about 30mΩ (18650 cylindrical type), cycle life: ≥2000 times (capacity retention rate > 80%), supports 3C discharge (3.6A), charging time: approximately 4.5 hours (5A charger).
Size: 18650 cylindrical (diameter 18mm, length 65mm), weight approximately 40-45g; Supports customized packaging (such as square aluminum shells, soft packages).
Temperature range: The optimal operating temperature is 15-35℃. At low temperatures (-20℃), the capacity retention rate is approximately 60-70%. At high temperatures (60℃), aging accelerates. A temperature control system is required.

Materials and Structures
The positive electrode material is lithium iron phosphate (LiFePO₄), the negative electrode uses carbon/graphite, the electrolyte is an organic solvent + lithium salt, and the separator is a polyolefin porous membrane.
Structural advantages: The olivine-type crystal structure is stable, with a thermal decomposition temperature above 600℃ and no risk of thermal runaway, making it suitable for high-safety scenarios.
Core advantage
Safety
It has passed the needle-puncture, compression and overcharge tests without combustion or explosion, and complies with international safety standards such as UN38.3, IEC62133, CE and RoHS.
It has no memory effect, supports charging and using at any time, and has a low self-discharge rate (monthly self-discharge rate < 5%).
Durability
It has a long cycle life (≥2000 times), which is 4 to 8 times that of lead-acid batteries. High-temperature resistant (operating at -20℃ to 75℃, with a peak temperature resistance of 350-500℃).
Environmentally friendly and non-toxic, the total life cycle cost is one fourth of that of lead-acid batteries.
Performance
The energy density is approximately 130-170Wh/kg, supporting high current charging and discharging (3C discharge temperature rise < 40℃), and the voltage platform is stable (3.2-3.3V fluctuation < 5mV).

Application scenarios
Energy Storage and Power
Home energy storage, solar/wind energy storage, UPS backup power supply, communication base stations, electric bicycles, low-speed electric vehicles (such as golf carts), forklifts, AGVs (Automated Guided Vehicles).
It is particularly suitable for scenarios that require high safety and long service life, such as energy storage power stations, fire emergency lighting, and fire alarm systems.
Consumer Electronics and Industry
Power banks, security equipment, medical devices (such as portable ultrasound equipment), power tools (such as electric drills, lawn mowers), smart door locks, small fans, solar street lamps.
Special scenarios
Shipping/railway transportation, renewable energy storage (photovoltaic/wind power), outdoor adventure equipment, medical equipment (such as pacemakers, portable blood glucose meters).