26650 3.2V 3200-4500mAh LiFePO4 Rechargeable Battery

High Safety High Capacity LFP Rechargeable Cylindrical Battery

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Key Features:

Stable 3.2V nominal voltage (2.0V-3.65V working range), 3200-4500mAh high capacity for long endurance.
Advanced LiFePO4 chemistry, non-toxic, thermal-stable, compliant with RoHS, REACH, UN38.3.
Long cycle life: ≥2000 cycles (100%DOD), ≥6000 cycles (80%DOD), ≥80% capacity retention.
Wide temperature adaptability: Charging 0~45℃, discharging -20~60℃, suitable for harsh environments.
High safety: No thermal runaway, anti-overcharge/overdischarge/short circuit/impact, safe for daily & industrial use.
Low self-discharge (≤3%/month), maintains power for long-term storage.
High rate performance: Continuous discharge ≤7A, pulse ≤15A, fits high-power devices.

Core Advantages:

Cost-Effective: Long cycle life (7-8 years service life) reduces replacement frequency and overall use cost significantly compared to traditional batteries.
Superior Safety: LiFePO4 chemistry ensures no fire, no explosion even in extreme conditions (overcharge, short circuit, high temperature), safer than ternary lithium batteries.
High Energy Efficiency: Actual specific capacity ≥140mAh/g (0.2C, 25℃), energy density up to 113Wh/kg, efficient power conversion.
Strong Compatibility: Direct replacement for lead-acid, nickel-cadmium and other 26650 batteries, widely applicable to various devices.
Eco-Friendly: No heavy metals (cobalt, mercury, cadmium), green and recyclable, meeting global environmental standards.
Low Maintenance: No memory effect, no need for regular full charge/discharge, easy to use and maintain for long-term use.

Rechargeable Cylindrical Battery structure drawing

Applications:

Energy Storage: Solar energy storage, UPS, telecom 5G base station backup power, solar street lights.
Electric Devices: Electric tools, e-bikes, e-scooters, golf carts, drones, electric forklifts.
Lighting & Monitoring: LED outdoor lights, wireless security monitors, miner's lamps, LED billboards.
Industrial & Medical: Industrial equipment, portable medical devices, exploration tools, military gear.
Daily Use: Flashlights, headlamps, portable power banks, remote control toys, electric wheelchairs.

Parameter	Specification
Battery Type	26650 LiFePO4 Rechargeable Battery
Nominal Voltage	3.2V
Capacity Range	3200mAh - 4500mAh
Working Voltage Range	2.0V - 3.65V
Charging Current	≤7A (Max charging current: 6A)
Discharging Current	Continuous: ≤7A; Pulse: ≤15A (60s)
Cycle Life	≥2000 cycles (100%DOD); ≥6000 cycles (80%DOD); ≥8000 cycles (50%DOD)
Capacity Retention	≥80% after 2000 cycles
Self-discharge Rate	≤3% per month
Operating Temperature	Charging: 0~45℃; Discharging: -20~60℃
Storage Temperature	-20~45℃
Dimensions	26mm (D) × 65mm (L) (±0.2mm tolerance)
Weight	Approx. 85-92g
Internal Resistance	≤45mΩ (≤10mΩ for high-grade models)
Certifications	UL1642, UL2054, UL1973, IEC62133, UN38.3, RoHS, REACH
Charging Method	CC-CV (Constant Current-Constant Voltage), charge to 3.65V, cut-off at 0.02C
Packaging	PVC Encapsulation (Standard); Customizable Packaging Available

The 26650 3.2V 3200-4500mAh LiFePO4 Rechargeable Battery is a high-performance cylindrical lithium-ion battery, adopting advanced LiFePO4 (lithium iron phosphate) chemistry and standardized 26mm×65mm size design. It delivers stable 3.2V nominal voltage, with capacity ranging from 3200mAh to 4500mAh to meet diverse power demands, suitable for both daily and industrial high-demand scenarios. Featuring excellent safety, long cycle life and environmental friendliness, it is a reliable rechargeable power solution for overseas markets, compatible with most 26650-powered devices and easy to install and replace.