Wide-Temperature Smart Lock Battery | UltraXel
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Smart Lock Battery

Wide-Temperature Smart Lock Battery Solutions

UltraXel provides rechargeable lithium cells and custom battery packs for logistics locks, shared bicycle locks and outdoor smart locks, supporting reliable power in extreme temperatures and demanding operating conditions.
−40°C to +85°C · 14500 & 18650 Cells · Custom Battery Packs
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Battery Challenges & Solutions

Outdoor smart locks require reliable power across extreme temperatures, long standby periods and high-current unlocking. UltraXel provides wide-temperature cells and custom battery packs to meet these demands.

Key Battery Challenges

Cold-Weather Unlocking

Cold temperatures reduce available capacity and increase voltage drop when the lock motor starts.

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Prolonged Heat Exposure

Sunlight and hot outdoor enclosures accelerate battery degradation and reduce usable capacity.

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Peak Current Demand

Motor activation, positioning and wireless transmission create short current peaks that can cause voltage drops or protection shutdowns.

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Long Standby & Limited Solar Charging

Continuous standby consumption and periods of limited sunlight can deplete the battery before maintenance or recharging.

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Limited Installation Space

Compact lock housings restrict battery dimensions, capacity and connector placement.

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UltraXel Solutions

Low-Temperature Power

Select cells supporting discharge down to −40°C, matched to unlocking current and the lock’s minimum operating voltage.

High-Temperature Durability

Select cells with documented high-temperature storage performance, evaluating capacity retention and recovery after heat exposure.

Matched Output & Protection

Match cell current capability, pack configuration and protection thresholds to the device’s peak loads.

Application-Based Capacity

Size capacity around standby current, unlocking frequency, communication demand and the required period without sufficient charging.

Compact Custom Packs

Configure 14500 or 18650 packs with application-specific dimensions, protection, temperature sensing and connectors.

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Battery Challenges & Solutions

Outdoor smart locks require reliable power across extreme temperatures, long standby periods and high-current unlocking. UltraXel provides wide-temperature cells and custom battery packs to meet these demands.
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Reliable Unlocking In Extreme Temperatures

Recommended Battery Cells for Smart Locks

Hl 14500 R

HL14500R — Compact Wide-Temperature Power

NCM | 3.6V | 750mAh | 14500
A compact lithium-ion cell for shared bicycle locks, logistics locks and outdoor smart locks requiring wide-temperature performance in limited installation space.
Key Advantages
• −40°C to +85°C discharge capability
• Compact 14500 format for space-constrained lock designs
• 750mAh nominal capacity for standby and unlocking loads
• Supports custom configurations, including 1S1P and 1S2P packs

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Hl14500S

HL14500S — Long Cycle Life for Rechargeable Locks

LiFePO₄ | 3.2V | 500mAh | 14500
A rechargeable lithium iron phosphate cell for solar-powered bicycle locks and other smart locks requiring repeated charging and compact battery integration.
Key Advantages
• Wide-temperature discharge capability
• Approximately 87–88% capacity retention after 1,000 cycles under specified test conditions
• Compact 14500 format for integrated battery compartments
• Supports custom 1S2P packs with application-specific protection and connectors
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Hl18650Y

HL18650Y — Higher Capacity for Extended Runtime

NCM | 3.6V | 3200mAh | 18650
A higher-capacity lithium-ion cell for logistics and tracking locks requiring extended runtime, low-temperature operation and resistance to heat exposure.
Key Advantages
• −40°C to +85°C discharge capability
• 3200mAh nominal capacity for longer intervals between charging
• Demonstrated approximately 35 minutes of 6W discharge at −30°C after 80°C storage for 30 days under specified test conditions
• Supports custom battery packs matched to voltage, runtime and installation requirements
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Need a Cell or Custom Battery Pack?
We support cell selection and custom car audio battery packs based on voltage, runtime, operating temperature, power and installation requirements.
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Wide-Temperature Performance & Reliability

Explore discharge, high-temperature aging and cycle-life data for HL14500R, HL14500S and HL18650Y cells to support battery selection for outdoor smart locks.

HL14500R— Compact Wide-Temperature Power

Wide Temperature Discharge
Wide-Temperature Discharge Performance

Discharge curves show voltage and available capacity across temperatures from −40°C to +85°C, providing a reference for outdoor smart lock battery selection.

Key Data: −40°C to +85°C Discharge
High Temperature Aging

Capacity After High-Temperature Aging

Approximately 90% of initial capacity remains after 42 days of aging at 85°C / 4.1V, providing a reference for evaluating backup energy in smart locks exposed to prolonged summer heat.

Key Data: Approx. 90% of Initial Capacity | 85°C / 4.1V / 42 Days
Room Temperature Cycle Life
Room-Temperature Cycle Life

Approximately 94% capacity retention after 500 cycles at 1C charge and 1C discharge, supporting capacity planning for rechargeable smart locks with repeated charging and unlocking cycles.

Key Data: Approx. 94% Capacity Retention | 500 Cycles | 1C Charge / 1C Discharge

HL14500S— Long Cycle Life for Rechargeable Locks

Wide Temperature Discharge Performance
Wide-Temperature Discharge Performance

Discharge curves show voltage and available capacity from −40°C to +85°C under a 13W load using a 1S2P configuration, providing a reference for evaluating outdoor smart lock power across seasonal temperatures.

Key Data: −40°C to +85°C Discharge | 13W | 1S2P
Low Temperature Discharge After Aging
Low-Temperature Discharge After Aging

After 42 days of aging at 85°C / 3.65V, the cell delivers approximately 7 minutes of 6W discharge at −20°C, providing a reference for evaluating cold-weather unlocking capability after prolonged summer heat exposure.

Key Data: Approx. 7 Minutes at −20°C / 6W | After 85°C / 3.65V / 42 Days Aging
Room Temperature Cycle Life1
Room-Temperature Cycle Life

Approximately 87–88% capacity retention after 1,000 cycles across the tested rates, providing a reference for evaluating capacity over repeated charging in rechargeable smart locks.

Key Data: Approx. 87–88% Capacity Retention | 1,000 Cycles | Room Temperature

HL18650Y— Higher Capacity for Extended Runtime

Wide Temperature Discharge Performance2

Wide-Temperature Discharge Performance

Discharge curves show approximately 70% of room-temperature capacity available at −40°C under the plotted test conditions, providing a reference for sizing outdoor smart lock batteries for winter standby and unlocking.

Key Data: −40°C to +85°C Discharge | Approx. 70% Capacity at −40°C
Low Temperature Discharge After Aging2

Low-Temperature Discharge After Aging

After 30 days of aging at 80°C / 4.05V, the cell delivers approximately 35 minutes of 6W discharge at −30°C, providing a reference for evaluating winter power availability in smart locks after prolonged summer heat exposure.

Key Data: Approx. 35 Minutes at −30°C / 6W | After 80°C / 4.05V / 30 Days Aging
Room Temperature Cycle Life2

Room-Temperature Cycle Life

Approximately 84% capacity retention after 500 cycles at 0.5C charge and 1C discharge, providing a reference for planning standby capacity and charging intervals in rechargeable smart locks over repeated use.

Key Data: Approx. 84% Capacity Retention | 500 Cycles | 0.5C Charge / 1C Discharge

Applications For Smart Lock Battery

Wide-temperature cells and custom battery packs for smart locks exposed to cold weather, prolonged heat and changing outdoor conditions.
Logistics & Cargo Tracking Lock Battery

Logistics & Cargo Tracking Lock Battery

Power for cargo and container locks operating across transport climates, supporting electronic unlocking, location tracking and data transmission.

Shared Bicycle Lock Battery

Shared Bicycle Lock Battery

Rechargeable battery solutions for year-round outdoor use, matched to motor activation, wireless connectivity and solar or vehicle-powered charging.

Outdoor Smart Door Lock Battery

Outdoor Smart Door Lock Battery

Battery solutions for outdoor entrances and unattended facilities, with cell selection focused on cold-weather unlocking and high-temperature durability.

Industrial Cabinet & Equipment Lock Battery

Industrial Cabinet & Equipment Lock Battery

Wide-temperature battery solutions for electrical cabinets, telecom enclosures and industrial equipment locks requiring reliable remote access and extended standby operation.

Cold Chain & Cold Storage Lock Battery

Cold Chain & Cold Storage Lock Battery

Low-temperature battery solutions for refrigerated transport and cold storage access, matched to standby duration, unlocking current and charging conditions.

Solar-Powered Smart Bicycle Lock Battery Solution

Solar-Powered Smart Bicycle Lock Battery Solution

UltraXel offers HL14500R and HL14500S 1S2P battery configurations for solar-powered shared bicycle locks. These rechargeable lithium solutions support Ni-MH replacement design, combining wide-temperature discharge capability with compact dimensions and reduced weight.

Key Benefits

  • Wide-Temperature Power: Selected cells support discharge from −40°C to +85°C.
  • Compact & Lightweight: Approximately 25g per pack, compared with approximately 80g for the original Ni-MH configuration.
  • Two Chemistry Options: NCM and LiFePO₄ configurations to match voltage, capacity and cycling requirements.

Battery Pack Comparison

Specification HL14500R-1S2P HL14500S-1S2P Original Ni-MH Pack
Chemistry NCM LiFePO₄ Ni-MH
Nominal Voltage 3.6V 3.2V 3.6V
Minimum Capacity 1400mAh 960mAh Approx. 900–1000mAh
Maximum Discharge Current 7A 4.8A Approx. 0.3A
Weight Approx. 25g Approx. 25g Approx. 80g
Dimensions 52.5 × 30.5 × 16.5mm 52.5 × 30.5 × 16.5mm Approx. 53 × 43 × 15mm
Compared with the original Ni-MH configuration, both UltraXel 14500 packs reduce weight by approximately 69% and offer higher rated discharge currents for smart lock integration.
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From Cell Selection to Custom Battery Pack

Custom battery packs engineered around your device requirements.
01
Cell Selection
NCM / LiFePO₄
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02
Pack Configuration
Voltage · Capacity
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03
Protection
PCM / BMS · NTC
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04
Wiring
Connectors · Cables
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05
Mechanical Structure
Size · Structure
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06
Charging Match
Grid · Solar · USB / DC
Customize Your Battery Pack

Smart Lock Battery Safety, Protection & Certification

UltraXel provides wide-temperature lithium-ion cells and custom battery pack solutions with safety protection and application-specific validation for outdoor smart locks.
Electrical Protection

Electrical Protection

Overcharge, over-discharge, overcurrent, and short-circuit protection tailored to pack requirements.

Temperature Monitoring and Charging Safety

Temperature Monitoring & Charging Safety

NTC sensing and charging controls to help prevent charging outside specified temperature limits.

Reliable Pack Integration

Reliable Pack Integration

Custom cell configurations, insulation, wiring, and connectors for secure installation.

Quality and Certification Support

Quality & Certification Support

Applicable UN38.3 documentation, quality management systems, and project-specific certification support.

Quality & Compliance

ISO 9001  |  UN38.3  |  Project-Specific Certification Support

Applicability depends on the model, pack configuration and target market.

Customize Smart Lock Battery Project

UltraXel supports Environmental Monitoring devices with cell selection, custom battery packs and application-based design.

What We Offer

电池

Battery Cell Selection

14500, 18650, 21700 and 32140 options.

记事本

Custom Battery Packs

Custom voltage, capacity, BMS and connectors.

插头

Application Matching

Solutions matched to load, temperature and space.


Contact Form

For a faster response, email [email protected] or complete the form below.
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FAQ

Smart locks may use alkaline batteries, Ni-MH batteries or rechargeable lithium battery packs, depending on their design. Outdoor and industrial locks require battery selection based on voltage, operating temperature, standby consumption and unlocking current.
Selected UltraXel battery solutions are designed for a service life of 5+ years under specified operating conditions. Actual service life depends on temperature exposure, charging patterns, depth of discharge and usage frequency.
Yes, when the lock supports the battery’s chemistry, voltage range and charging requirements. NCM and LiFePO₄ cells require different charging settings and should be matched to the device’s power system.
Choose cells with documented low-temperature discharge and high-temperature aging performance. Selected UltraXel cells support discharge from −40°C to +85°C. Final pack selection should also consider voltage under load, protection settings and separate charging temperature limits.
A replacement design may be possible, but voltage compatibility, charging control, protection and battery-level indication must be reviewed. Similar dimensions or nominal voltage alone do not make a lithium pack a direct replacement.
Yes. UltraXel provides cell selection and custom battery packs matched to your lock’s voltage, runtime, peak current, operating temperature and installation space. Customization includes pack configuration, protection circuits, temperature sensing, wiring and connectors.
Smart lock battery packs may require overcharge, over-discharge, overcurrent, short-circuit, and temperature protection, depending on their configuration. Applicable UN38.3 transport documentation and product safety certification requirements should be confirmed for the selected cells, battery pack design, and target market. UltraXel supports project-specific battery protection design and validation.

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+86 18122950916

+86 18122950916