UL 1642 Tested Lithium Polymer Batteries – TÜV SÜD Certified for OEM Safety
Published by A&S Power | Battery Technology
Introduction
Battery safety is non-negotiable in OEM applications. Whether you‘re designing a medical device, a wearable, or an IoT sensor, the battery must meet rigorous safety standards to ensure reliable and safe operation.
At A&S Power, our lithium polymer batteries are tested and certified by TÜV SÜD America Inc. – a globally recognized testing and certification organization – to the UL 1642 safety standard for lithium-ion cells. This certification confirms that our batteries have passed extensive electrical, mechanical, and fire safety tests.
For a complete overview of our custom battery capabilities, check out our full guide: Custom Lithium Polymer Battery – OEM/ODM Solutions for IoT, Wearables & Medical Devices.
What is UL 1642 Testing?
UL 1642 is a safety standard developed by Underwriters Laboratories for lithium-ion cells. It covers:
- Electrical safety – overcharge, over-discharge, short circuit
- Mechanical safety – crush, impact, drop, vibration
- Fire safety – flammability and thermal runaway prevention
- Environmental safety – temperature and humidity testing
Products that pass UL 1642 testing demonstrate compliance with internationally recognized safety requirements.
Our batteries have been tested and certified by TÜV SÜD America Inc., the US-based certification body of TÜV SÜD (Technischer Überwachungsverein), a globally recognized testing organization headquartered in Germany. The certification is documented under certificate number U10U 129841 0009 Rev. 00, based on test report 68282250310701.
What This Certification Means for You
| Benefit | Why It Matters |
|---|---|
| Global market access | UL 1642 compliance is widely recognized in North America and beyond |
| Regulatory compliance | Meets safety requirements for medical, consumer, and industrial devices |
| Reduced compliance risk | Cells tested to UL 1642 standard simplify your product certification process |
| Quality assurance | Independent testing verifies battery safety and reliability |
| Supply chain confidence | Certified cells demonstrate manufacturing quality and consistency |
When you source from A&S Power, you’re not just buying a battery – you‘re buying a certified, safety-tested power solution that helps you get to market faster.
TÜV SÜD Certified Battery Models
The following lithium polymer battery models are certified by TÜV SÜD America Inc. to UL 1642 safety standards. Each model is tested to the same rigorous requirements, ensuring consistent quality across our product range.
| Model | Normal Voltage (V) | Rated Capacity (mAh) | Max Charge Voltage (V) | Recommended Charge Voltage (V) |
|---|---|---|---|---|
| 502030 | 3.7 | 250 | 4.25 | 4.20 |
| 652030 | 3.7 | 350 | 4.25 | 4.20 |
| 552035 | 3.7 | 350 | 4.25 | 4.20 |
| 253550 | 3.7 | 360 | 4.25 | 4.20 |
| 423040 | 3.7 | 530 | 4.25 | 4.20 |
| 803035 | 3.7 | 800 | 4.25 | 4.20 |
| 553640 | 3.7 | 850 | 4.25 | 4.20 |
| 483450 | 3.7 | 850 | 4.25 | 4.20 |
| 303080 | 3.7 | 850 | 4.25 | 4.20 |
| 703440 | 3.7 | 1,000 | 4.25 | 4.20 |
| 602663 | 3.7 | 1,000 | 4.25 | 4.20 |
| 624046 | 3.7 | 1,200 | 4.25 | 4.20 |
| 122543 | 3.7 | 1,400 | 4.25 | 4.20 |
| 654065 | 3.7 | 2,000 | 4.25 | 4.20 |
| 755060 | 3.7 | 3,000 | 4.25 | 4.20 |
Key parameters across all models:
- Normal Voltage: 3.7V
- Upper Limit Charging Voltage: 4.25V
- Recommended Charging Voltage: 4.20V
- Charging Temperature Range: 0°C to 45°C
Applications for TÜV SÜD Certified Batteries
Our TÜV SÜD certified Li-Polymer batteries are suitable for a wide range of OEM applications:
| Industry | Applications | Why Certification Matters |
|---|---|---|
| Medical Devices | Patient monitors, diagnostic equipment, drug delivery systems | Patient safety and regulatory compliance |
| Wearable Devices | Smartwatches, fitness trackers, smart glasses | User safety in close-contact devices |
| IoT Sensors | Environmental monitors, asset trackers, smart home sensors | Reliable, safe operation in unattended devices |
| Consumer Electronics | TWS earbuds, portable speakers, wireless devices | Consumer protection and brand trust |
| Industrial Equipment | Handheld scanners, test equipment, portable tools | Worker safety and equipment reliability |
Why Choose A&S Power for UL 1642 Tested Batteries
✅ Independent Testing
All models listed above are tested to UL 1642:2020/R:2022-10 standards and certified by TÜV SÜD America Inc., a globally recognized third-party testing organization.
✅ Wide Model Range
From 250mAh to 3,000mAh capacities, covering a broad spectrum of OEM applications.
✅ Consistent Quality
Every model meets the same rigorous safety standards – no compromise on quality.
✅ Customization Options
Custom dimensions, capacities, BMS configurations, and labeling available.
✅ Full Documentation
Test reports and certification documentation provided with every order.
Frequently Asked Questions
1. What does UL 1642 testing cover?
UL 1642 testing covers electrical, mechanical, and fire safety for lithium-ion cells, including overcharge, short circuit, crush, impact, and thermal runaway tests.
2. Are all A&S Power batteries TÜV SÜD certified?
The models listed in this article are certified. For other models, please contact our team.
3. Can I get custom batteries with UL 1642 testing?
Yes. We can wtuv-sud-certified-batteries-guide-bannerork with you to develop custom battery solutions that meet UL 1642 safety requirements.
4. What documentation do you provide?
We provide test reports, certification documentation, and compliance declarations with every order.
5. Is UL 1642 testing required for medical devices?
UL 1642 is a widely recognized safety benchmark and is often referenced for lithium-ion batteries used in medical devices and other safety-critical applications.
You can download the full TÜV SÜD test certificate (PDF) here.
Custom UL 1642 Tested Battery Solutions from A&S Power
At A&S Power, we manufacture custom lithium polymer batteries tested to UL 1642 safety standards for OEM buyers across multiple industries. Whether you need a standard model from our certified list or a fully custom solution, we deliver safety, reliability, and performance.
- ✅ UL 1642 tested cells
- ✅ Custom dimensions and capacities
- ✅ TÜV SÜD certification documentation
- ✅ CE, RoHS, and UN38.3 compliance
- ✅ OEM labeling and packaging
- ✅ Engineering support from concept to production