HL18650G Wide-Temp 18650 LFP Battery 1500 Cycles

18650G Long Cycle Life 18650 LiFePO4 Battery

1500+ cycle wide temperature LFP cell with high safety, and stable -40℃ to +85℃ performance for industrial and outdoor devices.

Key Advantages of HL18650G LiFePO4 Battery

Built for long cycle life, safer LiFePO4 chemistry, wide-temperature operation, and 5C+ high-rate discharge in industrial and outdoor devices.

HL18650G wide temperature Long Cycle Life Battery Performance Validation

Access detailed test data, including rate discharge, temperature performance, and aging results, to support battery selection for industrial and outdoor applications.

HL18650G Applications for Industrial and Outdoor Devices

HL18650G wide temperature long-life LiFePO4 battery supports industrial, outdoor, monitoring, tracking, and smart lock devices with stable output, repeated recharge cycles, and reduced maintenance needs.

Common Challenge

HL18650G Solution

Frequent battery replacement in outdoor and industrial devices

1500+ cycle life helps reduce replacement frequency and long-term maintenance cost

Remote equipment exposed to cold, heat, and humidity

-40°C~+85°C wide-temperature discharge supports stable operation in harsh environments

Safety concerns in unattended industrial equipment

LiFePO4 chemistry provides better thermal stability for safer long-term use

Peak current required during startup or operation

7.5A max discharge current supports short-term high power output when needed

Battery packs require easy integration and stable supply

Standard 18650 format supports flexible pack design, replacement, and mass production

HL18650G Applications for Industrial and Outdoor Devices

Ni-MH Replacement for Automotive Backup

HL18650T enables higher voltage integration, fewer cells and reliable backup performance for demanding automotive applications.

Evaluation Point	Automotive Ni-MH	UltraXel HL18650T	Replacement Consideration
Cell Voltage	1.2V per cell	3.6V per cell	Fewer cells may be required to achieve the same system voltage
Pack Configuration	Multiple cells required for voltage matching	18650 cell-based customized pack	Evaluate pack size, connector and installation space
Temperature Reliability	Limited performance under prolonged high-temperature standby	Designed for −40°C to +85°C operation	Compare standby requirements under actual vehicle conditions
High-Temperature Aging	Faster degradation under elevated temperatures	>90% capacity recovery after 80°C aging test	Validate long-term standby reliability
Backup Power Performance	Depends on Ni-MH cell and pack design	Stable backup power performance for emergency loads	Check wake-up current and system voltage requirements

Evaluating a Ni-MH replacement?
Share your voltage, charging method, emergency load and installation space for an assessment.

Evaluate Your Ni-MH Replacement

Also Suitable For

Custom 18650 LiFePO4 Battery Pack Support

UltraXel provides custom battery pack support based on HL18650G wide temperature long cycle battery cells, including voltage, capacity, BMS, NTC, connectors, housing, and wide-temperature testing for industrial and outdoor applications.

Support Area

Details

Cell Selection

HL18650G or other UltraXel Battery Cell

Pack Design

Series / parallel configuration for voltage and capacity needs

Protection System

BMS, NTC, overcharge, overdischarge, and short-circuit protection

Mechanical Customization

Housing, connector, wire, label, and installation structure

Validation Testing

Temperature, aging, vibration, cycle life, and safety tests

Application Fit

Outdoor monitoring, telemetry, automotive, and industrial devices

Key Performance Highlights

-40°C to +85°C Operating Temperature

1600mAh Typical Capacity

5C Max Continuous Discharge

≈60% Capacity Retention at -40°C

Recovery capacity after high temperature aging

> 70% Recovery Capacity After 1000h @ 85°C Aging

Electrical Specifications

Typical Capacity (0.2C)

1600mAh

Minimum Capacity (0.2C)

1500mAh

Nominal Voltage

3.20V

Working Voltage

2V – 3.65V

Max Charge Current

1.6A

Max Continuous Discharge Current

7.5A

Charge Temperature

-20°C ~ +60°C

Discharge Temperature

-40°C ~ +85°C

Reliability Performance

Cycle Life

>1500 Cycles

-40°C Capacity Retention (0.2C)

>60%

Recovery Capacity After 1000h @ 85°C Aging

>70%

Mechanical Specifications

Diameter

18.25 ± 0.2 mm

Height

64.95 ± 0.2 mm

FAQ About 18650 lithium ion battery cycle life

What is a long life cycle battery?

A long life cycle battery supports repeated charge and discharge cycles while maintaining stable performance. HL18650G is a 18650 LiFePO4 battery with 1500+ cycles, suitable for automotive T-Box backup power, outdoor monitoring equipment, solar signage, industrial sensors, and remote IoT devices.

Which battery has the longest battery life?

Battery life depends on chemistry, temperature, discharge rate, and charging conditions. LiFePO4 batteries usually offer longer cycle life, and HL18650G is designed for long-term industrial, outdoor, and automotive electronics applications.

What is the typical lithium ion battery cycle life?

Lithium ion battery cycle life varies by chemistry and operating conditions. UltraXel HL18650G offers 1500+ cycles, making it suitable for low-maintenance devices such as remote telemetry systems, industrial IoT gateways, outdoor monitoring equipment, and sensors.

Which batteries last 10 years?

Some LiFePO4 batteries can support long service life when used under proper voltage, temperature, and charging conditions. UltraXel HL18650G helps reduce replacement frequency in outdoor signage, industrial sensors, T-Box backup systems, and remote monitoring equipment.

How long do lithium iron phosphate batteries last?

Lithium iron phosphate batteries usually last longer than many standard lithium-ion batteries. UltraXel HL18650G uses LiFePO4 chemistry and supports 1500+ cycles for industrial, outdoor, automotive, and IoT applications.

Why is HL18650G suitable for automotive T-Box backup power?

T-Box backup batteries need to handle heat, cold, vibration, and long standby time. HL18650G wide temperature battery uses safer LiFePO4 chemistry and supports -40℃~+85℃ operation for stable in-vehicle backup power.

Why choose HL18650G for solar outdoor signage?

Solar outdoor signage faces long-term outdoor exposure and day-night temperature changes. UltraXel HL18650G offers 1500+ cycle life and wide-temperature performance, helping reduce battery replacement frequency after installation.

Is HL18650G suitable for outdoor monitoring equipment?

Yes. Outdoor monitoring equipment often works in remote locations with high maintenance costs. HL18650G wide temperature battery provides long cycle life and stable output in cold and hot environments.

Why is HL18650G a good choice for industrial sensors?

Industrial sensors need reliable power under temperature fluctuation and harsh site conditions. HL18650G uses a standard 18650 LFP format, making it suitable for battery pack integration and low-maintenance operation.

Can HL18650G support field instruments and detectors?

Yes. Field instruments and detectors may require peak power during startup or operation. UltraXel HL18650G wide temp battery supports high-rate discharge and stable wide-temperature output for meters, inspection tools, and portable detectors.