WhatsApp Icon

Medical Device Battery • Infrared Thermometer

Infrared Thermometer Battery Pack (INR14500 3.7V 900mAh)

A rechargeable AA-size (14500) lithium solution for handheld non-contact thermometers—supporting instant boot-up, multi-day standby, and safer operation with integrated PCM protection.

3.7V
Nominal Voltage
900mAh
Nominal Capacity
14500
AA-Size Form Factor
Image placeholders are included below. Replace URLs anytime to update images.

Suggested hero image: handheld IR thermometer in clinic/public screening scenario.

1) Project Snapshot

Device / Scenario
Handheld non-contact infrared thermometer for clinics and public health screening.
Key Target
Instant boot-up, multiple-day standby, ergonomic fit.
PKNERGY Customization
14500 cylindrical cell + custom-fit holder, integrated PCM, optional plug-in connector.

A handheld IR thermometer requires fast power-up for sensor and display initialization, while also maintaining charge during standby. PKNERGY provides a drop-in rechargeable 14500 solution designed for stable output, safer discharge behavior, and plug-and-play electrical compatibility.

2) Market & Use Case Trends

Where infrared thermometers are used: clinical triage & outpatient use, public area temperature checks (schools/airports/events), and home healthcare (including pediatric care).

Across modern medical diagnostics, many brands are shifting from disposable alkaline batteries to rechargeable systems to improve device uptime, reduce recurring maintenance, and minimize waste. In high-frequency screening environments, long standby and instant response become key user requirements.

3) Key Battery Requirements for This Device

Performance requirements
  • Stable 3.7V output for instant sensing & LCD boot
  • Standby-friendly low self-discharge to preserve charge
  • Peak current support for buzzer, MCU, and display bursts
Integration & safety requirements
  • AA-size cylindrical form factor to fit existing molds
  • Rechargeable cycle life to reduce replacement frequency
  • Safer discharge behavior with integrated PCM protection

4) How the Battery Is Integrated

  • Installation location: standard AA battery holder (14500 size)
  • Role: primary (and only) power source
  • What it powers: infrared sensor module, MCU, buzzer, and LCD display

For compact medical devices that require flexible shapes or custom cavities, PKNERGY can also provide
custom lithium polymer batteries
and
custom LiFePO4 batteries.

5) Solving End-User Pain Points

Pain Point 1: Frequent alkaline battery replacement
Problem: In high-volume screening environments, disposable AA batteries can require frequent swaps, increasing maintenance workload and waste.
PKNERGY solution: A rechargeable INR14500 Li-ion cell (3.7V 900mAh) designed for stable output and extended standby.
Result: Reduced replacement frequency and operating cost, improved uptime, and less disposable battery waste.
Pain Point 2: Inconsistent performance with low-grade cells
Problem: Voltage drop can lead to sensor lag, boot failures, or unstable display behavior during frequent use.
PKNERGY solution: Stable 3.7V platform plus integrated PCM protection for safer and more consistent discharge behavior.
Result: Faster boot-up and more stable measurement workflow in daily operation.
Pain Point 3: Fit/connector mismatch with device mold
Problem: Some replacement batteries do not match the casing, terminals, or connector requirements, causing installation friction or unreliable contact.
PKNERGY solution: Precisely matched 14500 form factor with correct terminals, shrink wrap options, and optional plug-in connector or welded tabs.
Result: Plug-and-play integration with minimal mechanical or electrical changes.

6) Product Images

Replace these image URLs with your WordPress Media Library links (recommended: 1200px+ wide, JPG/PNG).

Battery external view — best placed near specs and overview.

PCM/terminal/connector detail — best placed in safety & customization section.

7) Battery Specification (INR14500)

Parameter Value Why it matters
Cell Model INR14500 AA-size cylindrical rechargeable type
Nominal Voltage 3.7V Supports rapid boot for sensor & display logic
Capacity 900mAh Enables multi-day standby in typical usage
Size 14 × 50 mm Matches standard AA holder for easy integration
Charge / Discharge Limit 4.2V / 2.5V Safe operating window for continuous duty
Current Charge 0.5A / Discharge 1A Supports peak draw during sensing and alerts
Cycle Life ≥ 300 cycles @ 80% DOD Long-lasting under frequent use
Weight ~ 20g Lightweight for handheld ergonomics

8) Safety & Reliability

Integrated PCM protection
  • Over-voltage / under-voltage protection
  • Over-current and short-circuit protection
  • Safer discharge behavior for healthcare usage
Quality control & customization
  • Functional test + insulation check + capacity verification
  • Terminal options: welded tabs / wire leads / contact plates
  • Shrink color and connector matching available

Need other device power designs? Explore:
Portable Detection Device Power Solution ·
Consumer Electronics Power Solution ·
Security Devices Power Solution

9) Off-the-Shelf vs PKNERGY Custom (Quick Comparison)

Feature Off-the-Shelf Battery PKNERGY Custom Pack
Fit & Compatibility Generic AA cell, mixed terminal standards Precisely matched casing, terminals, and holder
Output Stability Variable, may drop under peak load PCM-stabilized behavior for more reliable boot
Safety Features Limited or inconsistent protection Full protection circuit and QC process
Terminal Options Fixed Plug, spot-weld, wire leads, custom contact plates
Supply Chain Support Inconsistent sourcing Scalable, documented production support

10) FAQs

How long does the battery last?
In typical handheld usage, it can support hundreds of measurements per charge plus multiple-day standby. Actual runtime depends on display brightness, buzzer usage, and measurement frequency.
Is the battery suitable for medical devices?
The pack includes an integrated protection circuit (PCM) for safer operation. If your project requires specific compliance documentation, share your target market and standards and we can align the solution accordingly.
Can it replace AA alkaline batteries directly?
It can be used as a rechargeable solution in AA-size holders, but device electrical design must support the lithium system (including charging method and input range). Share your device model/spec and we’ll confirm compatibility.
Can you adjust terminals or add connectors?
Yes. We can provide welded tabs, wires, plug types, or custom contact plates based on your device holder and assembly process.
How fast can I get samples?
We can support sampling with spec sheet and drawing support once key requirements are confirmed (holder type, terminals/connector, and charging method).

11) Contact Cassie — PKNERGY

Need a rechargeable 14500 (AA-size) battery solution for infrared thermometers or other medical handheld devices? Send your device requirements and we’ll recommend the best configuration, terminals, and protection strategy.

Email: sale4@pknergy.com

Social:
YouTube ·
X ·
Facebook ·
TikTok ·
LinkedIn