BHL18650-2200-US Ultra-Safe Low-Temperature Lithium-Ion Cell | Features & Applications
Ⅰ. Core Product Advantages
The BHL18650-2200-US is a 18650 steel-shell cylindrical low-temperature power cell developed for special power supply equipment operating in high and low temperature environments. It effectively solves the common pain points of conventional lithium batteries, including capacity attenuation at low temperatures, thermal runaway under high current, and structural damage in harsh working conditions.
Basic Parameters: Rated 2200mAh/3.7V with an energy density of 181Wh/kg. Standard cell dimensions are 18.4×65.1mm with a single cell weight ≤45g. It features internal resistance ≤28mΩ, supports 3C continuous discharge at 6.6A and 11A instantaneous peak current. The maximum charging current is 1.1A with standard 0.2C CC/CV charging support. It enables pre-charge recovery for over-discharged cells and delivers excellent consistency in series-parallel assembly, greatly reducing the risk of thermal imbalance in battery packs.
1. Ultra-Wide Temperature Range & Stable Extreme Cold Output
Operating temperature limits: charging from 0℃ to 40℃, discharging from -40℃ to 55℃. The cell retains ≥95% capacity at 55℃ and delivers full rated capacity at room temperature. It maintains over 80% capacity at -40℃ extreme cold with a discharge cut-off voltage of 2.5V. No external heating module is required, making it suitable for polar equipment, cold storage devices and open-air facilities in cold regions while reducing overall equipment thermal management costs.
2. Long Cycle Life & Low Self-Discharge for Maintenance-Free Operation
It retains more than 80% rated capacity after 1500 charge-discharge cycles under standard working conditions and maintains ≥85% residual capacity after 30-day full-charge static storage at room temperature. For long-term storage, a state of charge of 10%~35% is recommended. Stored in dry environments at -20℃~45℃, it only requires supplementary charging once a year, perfectly fitting long-term unattended equipment applications.
3. Multiple Safety Certifications with Zero Thermal Runaway Under Extreme Conditions
The cell has passed full-range safety tests including overcharge, overdischarge, short circuit, 135℃ thermal shock, high-low temperature alternation, three-axis vibration and drop, with zero fire or explosion incidents. Adopting an integrated steel-shell structure, its surface temperature is controlled below 60℃ during charging and within 70℃ during discharge. Combined with protective circuits for overcharge, overdischarge and overcurrent prevention, it meets strict safety standards for military and emergency equipment.
4. High Weather Resistance for Stable Operation in Complex Environments
It maintains structural integrity and ≥95% capacity retention after 10~55Hz three-axis vibration, high-low temperature humidity and drop tests. The anti-aging purple outer film provides excellent moisture and ultraviolet resistance. Assembled packs feature voltage difference ≤20mV, internal resistance difference ≤6mΩ and internal temperature deviation ≤5℃, effectively avoiding local overheating and capacity degradation.
5. Standardized Specification for Efficient Mass Assembly
Featuring universal 18650 dimensions with standardized protective packaging (100pcs per inner box, 200pcs per outer box). Only resistance welding and laser welding are permitted, while tin welding is prohibited. It supports flexible series-parallel configuration with simple fuse matching for series circuits. The battery pack can be designed with waterproof and anti-static structures. Slight liquid leakage will not erode the protection board, eliminating the need for customized molds and accelerating mass production deployment.
Ⅱ. Industry Application Scenarios
Cold-Region Individual Emergency Equipment：Ideal for cold-region rescue lighting, border individual power supplies and low-temperature emergency starting devices. Relying on stable -40℃ ultra-low-temperature discharge and instantaneous high-current output, it supports long-term field duty in extreme cold environments.
Plateau & Polar IoT Monitoring Devices：Suitable for weather stations, forest fire monitoring cameras, pipeline inspection instruments and cold storage sensing equipment. Its low self-discharge performance reduces maintenance frequency, while outstanding humidity and vibration resistance adapts to year-round temperature fluctuation scenarios.
Special Communication & Low-Altitude Aircraft：Applicable to Beidou positioning terminals, outdoor radio stations and cold-region surveying UAVs. 3C high-power discharge ensures reliable startup and continuous power supply, and the lightweight cell structure effectively extends equipment endurance.
Industrial Low-Temperature Energy Storage Equipment：Widely used for outdoor base station backup power, mining detectors, cold chain AGVs and low-temperature power tools. Excellent high and low temperature resistance and comprehensive safety protection adapt to high-frequency start-stop industrial working conditions.
Vehicle-Mounted Outdoor Portable Energy Storage：Perfect for RV parking power, camping energy storage and vehicle-mounted emergency power supplies. Compatible with standard 18650 module solutions, it delivers stable power output during static storage and driving under variable temperature conditions.
Ⅲ. Product Summary
The BHL18650-2200-US cell features a core advantage of ultra-wide operating temperature ranging from -40℃ to 55℃. It integrates six core strengths: 3C high-power discharge, 1500 long cycle life, full-dimensional safety protection, superior environmental weather resistance and universal standardized dimensions. Custom-developed for special industrial equipment in cold regions, it is supported by complete charge-discharge guidelines, professional PACK design specifications and a sound quality warranty system, serving as the optimal lithium cell solution for low-temperature special power supporting scenarios.
