HL18650Y Wide Temperature High-Capacity 18650 Battery
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HL18650Y Wide-Temperature High-Capacity Battery

Reliable Power for Outdoor & Industrial Devices from -40°C to +85°C
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High Capacity Li-ion Battery for Harsh Outdoor Environments

HL18650Y delivers 3200mAh high-capacity power with reliable wide-temperature performance from -40°C to +85°C for outdoor surveillance, GPS tracking, and industrial devices.
18650Y Consistent in Extreme Temperatures

Wide-Temperature Operation

-40°C to +85°C Stable Performance

18650Y Stable Under High Currents

High Capacity

3200mAh for Extended Runtime

18650Y Long Cycle Life

Low-Temperature Reliability

Maintains 70% Capacity at -40°C

18650Y High Temperature Storage Stability

Stable Voltage Output

Reduced Voltage Drop in Extreme Cold

18650Y Low Temperature Stability

High-Temperature Durability

Reliable After Long-Term High-Temperature Storage

18650Y Certified for Global Standards

Industrial-Grade Reliability

Built for Harsh Outdoor Applications

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Explore HL18650V Performance Insights

Proven Performance in Extreme Temperatures

HL18650Y is validated through low-temperature discharge, high-load output, thermal aging, and cycle-life testing to ensure reliable performance in harsh outdoor and industrial environments.
Download Datasheet
18650Y rate discharge
18650Y discharge at different temperature
18650Y cycle at high temperature
18650Y cycle at room temperature
18650Y at 80℃ aging
18650Y at 80℃ aging

High Capacity 18650 Battery for Harsh Outdoor Environments

Standard 18650 batteries often struggle in extreme cold, heat, and harsh outdoor environments, leading to device downtime, reduced runtime, and shortened service life. HL18650Y high capacity 18650 cell is engineered for stable outdoor operation from -40°C to +85°C.
Outdoor Surveillance

Outdoor Surveillance

Challenges
• Voltage drop in freezing temperatures
• Cameras going offline during winter

HL18650Y Solution
• Stable low-temperature discharge down to -40°C
• Reliable outdoor monitoring performance

Industrial Handheld Devices

Industrial Handheld Devices

Challenges
• Capacity fades in high-temperature environments
• Reduced runtime after long-term use

HL18650Y Solution
• Stable high-temperature durability
• 3200mAh long-runtime performance

GPS Tracking & Remote loT

GPS Tracking & Remote loT

Challenges
• Frequent charging and maintenance
• Poor long-term outdoor reliability

HL18650Y Solution
• Extended runtime for remote deployments
• Stable operation from -40°C to +85°C

Walkie-Talkies

Walkie-Talkies

Challenges
• Battery runtime drops during long outdoor operations
• Communication devices may fail in extreme cold or high-temperature environments

HL18650Y Solution
• Stable discharge performance for reliable long-duration communication
• Wide-temperature operation from -40°C to +85°C for harsh outdoor conditions

Portable Oxygen Concentrators battery

Portable Oxygen Concentrators

Challenges
• Limited battery space requires compact and lightweight power solutions.
• Long outdoor operation demands extended runtime and reliable power stability.

HL18650Y Solutions
• High energy density enables longer operating time in compact battery designs.
• Stable lithium performance supports reliable portable medical device operation.

Body-Worn Cameras

Body-Worn Cameras

Challenges
• Continuous video recording quickly drains battery power during long shifts.
• Outdoor patrol environments expose devices to cold, heat, and harsh conditions.

HL18650Y Solutions
• Provides long-lasting power for extended recording and field operations.
• Wide-temperature performance ensures stable operation in outdoor environments.

Outdoor Weather Monitoring Systems

Outdoor Weather Monitoring Systems

Challenges
• Extreme outdoor temperatures can cause unstable power supply and sensor failure.
• Remote deployment locations require long-life, low-maintenance battery solutions.

HL18650Y Solutions
• Supports stable wide-temperature operation from -40°C to +85°C for outdoor weather monitoring equipment.
• High-capacity and long-term reliability help reduce maintenance frequency and ensure continuous environmental data collection.

Standard 18650 vs HL18650Y

HL18650Y helps improve outdoor reliability, reduce maintenance frequency, and extend device operating life in harsh environments.

HL18650Y High Capacity 18650 Battery

Stable discharge down to -40°C

Stable discharge down to -40°C

90% capacity recovery after 1,000h @ 80°C

90% capacity recovery after 1,000h @ 80°C

3200mAh high-capacity, longer runtime

3200mAh high-capacity, longer runtime

Reliable long-term outdoor operation

Reliable long-term outdoor operation

Wide temperature range: -40°C to +85°C

Wide temperature range: -40°C to +85°C

Standard 18650 Batteries

Stable discharge down to -40°C

Poor performance in cold weather

90% capacity recovery after 1,000h @ 80°C

Capacity fade in high temperatures

3200mAh high-capacity, longer runtime

Shorter runtime

Reliable long-term outdoor operation

Frequent maintenance

Wide temperature range: -40°C to +85°C

Limited outdoor reliability

Custom Battery Pack Solutions

UltraXel also provides custom lithium battery pack solutions for industrial and outdoor devices, supporting both cylindrical cell integration and OEM battery system development.
High Power Output

PCM / BMS Integration

Battery protection and power management solutions

Reliable Wide-Temperature Performance

NTC Temperature Protection

Stable operation in harsh temperature environments

Compact & Lightweight

Connector Customization

Customized connectors and interface solutions

Industrial-Grade Quality

Wire Harness Assembly

Flexible cable and wiring integration

Flexible Integration

OEM Battery Pack Design

Tailored lithium battery pack development

Safer Chemistry

Industrial-Grade Reliability

Designed for long-term outdoor deployment

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18650Y Product Specifications

HL18650Y is engineered for outdoor and industrial devices operating in extreme cold and high-temperature environments.

Key Performance Highlights

Wide-Temperature Performance

-40°C to +85°C

Operating Temperature

Stable 3.2V Output

3200mAh

High Capacity Energy

Compact & Lightweight

3.2A / 10A

Max charge/discharge current

Long Cycle Life

≈70%

-40℃ capacity (0.2C)

Industrial-Grade Quality

≈90%

Recovery capacity after 1000h 80°C aging

Electrical Specifications

Parameter

Specification

Typical Capacity (0.2C)
3200mAh
Nominal Voltage
3.6V
Max Continucus Discharge Current
3.2A / 10A
Charge Temperature
-20°C - 60°C
Discharge Temperature
-40~85℃

Mechanical Specifications

Parameter

Specification

Diameter
18.25±0.2mm
Height
64.95 ± 0.2 mm

Reliability Performance

Parameter

Specification

Cycle life
> 500
-40℃ capacity (0.2C)
≈ 70%
Recovery capacity after 1000h 80°C aging
≈ 90%

FAQ about High Capacity 18650 Cell

What is the highest capacity of an 18650 battery?
Most standard commercial 18650 batteries range from 2000mAh to 3500mAh. For industrial wide-temperature applications, capacity is often balanced with low-temperature performance, high-temperature durability, and long-term reliability.
UltraXel HL18650Y provides 3200mAh high-capacity performance with stable operation from -40°C to +85°C for harsh outdoor environments.
Most genuine 18650 lithium-ion batteries do not reach true 4000mAh capacity while maintaining safe industrial-grade performance. Many ultra-high-capacity claims on the market are exaggerated or designed for low-drain consumer devices.
For outdoor and industrial applications, stable performance, temperature resistance, and reliability are often more important than extreme advertised capacity.
The “most powerful” 18650 battery usually refers to high-discharge cells capable of delivering very high current output, such as 20A–40A continuous discharge. These are commonly used in power tools, robotics, drones, and industrial equipment.
For extreme outdoor applications, a balance of power, capacity, and wide-temperature stability is critical.
Most standard 18650 batteries experience severe voltage drop or shutdown below -20°C.
UltraXel wide-temperature 18650 batteries are engineered for stable low-temperature operation and can retain approximately 70% capacity at -40°C.
Outdoor surveillance devices require batteries with:
Wide-temperature performance
Long runtime
Stable voltage output
Long outdoor service life
UltraXel HL18650Y is designed for wireless outdoor cameras, solar monitoring systems, and remote surveillance deployments operating in harsh environments.
Extreme temperatures can cause:
Voltage instability
Capacity loss
Fast battery aging
Unexpected shutdowns
Standard lithium batteries are usually designed for indoor consumer electronics, while industrial outdoor systems require specialized wide-temperature battery cells.
Solar monitoring systems require batteries with:
Long cycle life
Stable outdoor performance
High-temperature resistance
Low maintenance requirements
UltraXel wide-temperature lithium-ion batteries are commonly used in remote monitoring, IoT gateways, and solar-powered surveillance systems.
Battery lifespan depends on:
  • Operating temperature
  • Charge/discharge cycles
  • Environmental conditions
  • System design
Industrial-grade wide-temperature batteries can support long-term outdoor deployment with significantly reduced maintenance frequency compared to standard consumer cells.
Yes. Wide-temperature lithium batteries are specifically designed for:
  • Extreme cold environments
  • High outdoor heat
  • Remote industrial deployment
  • Long-term outdoor reliability
  • They are widely used in:
  • Outdoor surveillance
  • GPS tracking
  • Industrial handheld devices
  • Automotive IoT
  • Smart logistics systems
For industrial and outdoor applications, the ideal lithium battery combines:
  • High energy density
  • Wide-temperature performance
  • Long cycle life
  • High safety
  • Stable outdoor reliability
No single battery chemistry is perfect for every application, but wide-temperature lithium-ion batteries are increasingly preferred for harsh-environment electronic systems.

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