Medical Device Battery • Infusion Pump

INR21700 7.4V 5000mAh Battery Pack for Medical Infusion Pumps

Q: Do you support OEM engineering documents and sampling?

Yes. PKNERGY supports OEM engineering alignment from sample to mass production (structure, harness, protection strategy).

Compact, stable, and BMS-protected power designed for portable infusion devices—supporting longer runtime, reliable dosing accuracy, and safer operation in hospital and home-care environments.

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Medical Device Solution

Custom Li-Po Packs

7.4V

Nominal Voltage

5000mAh

Nominal Capacity

10A

Continuous Discharge

Tip: Replace images by updating the URL placeholders in the tags below.

Application reference: portable infusion pump power system (image for scenario illustration).

Contents

1) Market & Use Scenarios ·
2) Battery Requirements ·
3) Integration Method ·
4) Pain Points Solved ·
5) Product Images ·
6) Parameters ·
7) Safety & Reliability ·
8) FAQ ·
9) Contact

1) Infusion Pump Market & Use Scenarios

Infusion pumps are widely used in hospitals, clinics, and home healthcare settings to deliver fluids, medications, and nutrients with high accuracy.
As medical care becomes more portable and patient-centered, infusion devices increasingly need a reliable battery system to ensure continuous dosing during transport,
bedside movement, and home use. :contentReference[oaicite:0]{index=0}

Why power matters: Stable battery output directly affects dosing continuity, device uptime, and operational safety—especially when external power is unstable or unavailable.

2) Battery Requirements for Infusion Pump Applications

Clinical & user requirements

Stable voltage output for accurate flow control
Long runtime to reduce charging frequency
Compact & lightweight for portable designs
Predictable maintenance and replacement cycle

Engineering requirements

BMS/PCM protection (overcharge/overdischarge/overcurrent)
Thermal stability under continuous load
Mechanical fit within tight enclosures
Consistency for production scaling

For medical OEMs, pack structure, protection strategy, and harness routing often matter as much as cell chemistry.
Learn more: Medical Device Power Solution.

3) How the Battery Is Integrated

This project uses a custom rechargeable lithium battery pack based on INR21700 cells, engineered to fit the infusion pump enclosure.
The pack supports portable operation and can serve as backup power during power interruptions—helping ensure uninterrupted infusion delivery.

Related custom options

• Custom Lithium Polymer Battery (flexible shape for compact cavities)
• Custom LiFePO4 Battery (longer cycle life & strong safety margin)
• FAQ Center (common customization questions)

4) Key Pain Points We Solve

Runtime & workflow stability

Problem: short runtime causes frequent charging & downtime.
Solution: optimized pack capacity & discharge design for longer operation.
Value: fewer charging events, higher device availability.

Fit & dosing accuracy

Problem: tight cavities + voltage fluctuation can affect precision.
Solution: custom structure + stable discharge profile + BMS tuning.
Value: better integration and more reliable operation.

For other portable healthcare devices, you can reference:
Portable Detection Device Power Solution.

5) Product Images (Replaceable)

Below are the suggested placements for the battery pack images. You can replace each image anytime by changing the URL.

Battery external view (label + shrink wrap) — best for specs section / product overview.

Internal structure view (cells + nickel + PCM/BMS) — best for safety & reliability section.

6) Battery Parameters (INR21700 Pack)

Item	Specification
Cell Model	INR21700
Nominal Voltage	7.4V
Nominal Capacity	5000mAh
Dimensions	22.5 × 43.0 × 72.5 mm
Internal Resistance	≤ 140 mΩ
Charging Cut-off Voltage	8.4V
Discharge Cut-off Voltage	5.0V
Max Constant Charging Current	5000mA
Max Continuous Discharge Current	10000mA
Cycle Life	≥ 300 cycles (80% DOD)
Weight	Approx. 180g

Engineering note: For best results, confirm the infusion pump load profile (average/peak current, motor pulses, alarm modes). We can then tune BMS thresholds and harness gauge for both safety and dosing stability.

7) Safety Design & Reliability

Built-in protection (BMS/PCM)

Overcharge & over-discharge protection
Overcurrent & short-circuit protection
Temperature monitoring (charge/discharge)
Stable output under continuous load

Customization options

Connector type & harness length
Pack shape, insulation, mounting features
Charge/discharge limits tuned to device behavior
Alternative chemistries: LiFePO4 / Li-Po

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Industrial Automation Battery ·
Security Devices Power Solution ·
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8) FAQs

How long can the 7.4V 5000mAh pack power an infusion pump?

Runtime depends on the pump’s average and peak current plus operating modes. This configuration is designed for extended portable operation; we can estimate runtime precisely once the device load profile is confirmed.

Is the battery safe for medical environments?

The pack integrates BMS/PCM protections including overcharge, over-discharge, overcurrent, short-circuit protection, and temperature monitoring. Safety strategy can be tuned to your device’s conditions.

Can you customize size, capacity, connectors, and wiring?

Yes. Dimensions, voltage/capacity, connector type, harness length, insulation, mounting design, and BMS settings can be customized based on your infusion pump requirements.

How does cycle life affect maintenance?

This pack targets ≥300 cycles at 80% DOD. Actual service life depends on charging habits, temperature, and depth of discharge; the design can be adjusted for longer life if needed.

Do you support OEM engineering documents and sampling?

Yes. We support OEM engineering alignment from sample to mass production (structure, harness, protection strategy). You can also review common questions at
PKNERGY FAQ.

Contact— PKNERGY

Need a custom infusion pump battery pack (INR21700 / Li-Po / LiFePO4)? Send your device requirements and we’ll recommend the best configuration, connector, and BMS strategy.