3.7V 450mAh LiPo Battery (AS702035): Certifications, UN38.3 & Safety Documents
Published by A&S Power | Battery Certification & Compliance
Introduction
When you source a 3.7V 450mAh LiPo battery for a wearable, IoT device, portable electronics, or compact medical instrument, the electrical specs are only half the story. The other half is documentation: safety certifications, transportation test reports, material safety data sheets, and packaging validation. Without these documents, your battery cannot ship by air, cannot pass regulatory review, and cannot be integrated into a certified end product.
This article uses our AS702035 3.7V 450mAh lithium polymer battery as a real-world case study. We break down every certificate and test report that backs this 10g cell—from CE and RoHS compliance to UN38.3 transportation testing, MSDS, 3-meter stacking tests, and 1.2-meter drop tests. If you are evaluating small LiPo batteries for your product, this is exactly the documentation package you should demand from your supplier.
The AS702035 is available for OEM/ODM orders on our product page. For a broader look at compact battery options, see our small LiPo battery complete guide.
AS702035 Product Overview
The AS702035 is a compact lithium polymer battery designed for portable and space-constrained applications. Here are the key specifications from the official product specification (Version 1.0):
| Parameter | Specification |
|---|---|
| Model | AS-702035-0450-112 (cell: 702035) |
| Chemistry | Lithium Polymer (LiCoO2 cathode) |
| Nominal Voltage | 3.7V |
| Rated Capacity | 450mAh (minimum 450mAh at 0.2C discharge, 3.0V cut-off) |
| Energy | 1.665Wh |
| Cell Dimensions | 6.8mm (T) × 20.0mm (W) × 34.0mm (L) max. |
| Weight | Approx. 10.0g (±1.0g) |
| Charge Voltage / Cut-off | 4.20V (max 4.23V) / 3.00V |
| Standard Charge | 90mA (0.2C), approx. 5.25h |
| Max Charge / Discharge Current | 450mA (1.0C) / 450mA (1.0C) |
| Internal Resistance | ≤90mΩ (cell) / ≤150mΩ (with PCM & wires) |
| Operating Temperature | Charge: 0°C to +45°C; Discharge: -10°C to +50°C |
| Certifications | CE, RoHS, UN38.3 |
At just 10g and 6.8mm thick, this cell is well-suited for wearable devices, portable electronics, IoT sensors, Bluetooth accessories, and compact medical devices. For other form factors in the same family, explore our AS401230 3.7V 120mAh cell .
Safety Certifications
The AS702035 carries the following safety and compliance certifications, as stated in the official product specification (Section 1):
| Certification | What It Covers | Status for AS702035 |
|---|---|---|
| CE | Conformité Européenne marking required for products sold in the European Union. | Completed. |
| RoHS | Restriction of Hazardous Substances—limits lead, mercury, cadmium, hexavalent chromium, PBB, PBDE, and 4 phthalates. | Pass. |
| UN38.3 | UN transportation testing for lithium batteries—mandatory for air and sea shipment. | Completed. Report DSP26080634-2. |
CE and RoHS are baseline requirements for market access in the EU and most global markets. For a detailed breakdown of all lithium battery safety standards, read our lithium battery safety and compliance guide.
UN38.3 Transportation Testing
UN38.3 is mandatory for any lithium battery shipped by air or sea. The AS702035 completed the full UN38.3 test program (Revision 8) at Dongguan ZRLK Testing Technology Co., Ltd., with report number DSP26080634-2, issued on August 28, 2026. All 8 test items passed.
The test used multiple sample groups: battery packs B01–B18 at full charge (1 cycle and 25 cycles), and cells C01–C30 at 50% charge and full discharge states. Here is what each test involves and the AS702035 results:
| Test | What It Simulates | AS702035 Result |
|---|---|---|
| T.1 Altitude Simulation | Low-pressure environment at 15,000m (11.6 kPa) for 6 hours—simulates cargo hold during air transport. | Pass. 0.00–0.01% mass loss, ≥99.9% residual voltage. No leakage, venting, or fire. |
| T.2 Thermal Test | 7 cycles between +75°C and -40°C, 6 hours each—simulates extreme temperature swings during transport. | Pass. No leakage, venting, disassembly, rupture, or fire. |
| T.3 Vibration | Sinusoidal vibration 7–200Hz, 3 axes—simulates vehicle and aircraft vibration during shipping. | Pass. No leakage, venting, disassembly, or fire. |
| T.4 Shock | Half-sine shock 150g, 6ms, 3 axes—simulates impact during handling and transport. | Pass. No leakage, venting, disassembly, or fire. |
| T.5 External Short Circuit | Short terminals with ≤0.1Ω conductor at 55°C—worst-case short circuit scenario. | Pass. No fire, no explosion, no rupture. |
| T.6 Impact / Crush | Crush between flat plates—simulates physical damage to the cell. | Pass. No fire, no disassembly. |
| T.7 Overcharge | Charge at 2x rated current or higher to verify protection circuit activates. | Pass. No fire, no disassembly. |
| T.8 Forced Discharge | Force discharge in reverse polarity at 1x rated current—simulates reverse installation. | Pass. No fire, no disassembly. |
The UN38.3 test summary (report DSP26080634-3) is the document you provide to airlines and freight forwarders. Without a valid UN38.3 summary, lithium batteries are refused at the airport. We include this summary with every shipment.
MSDS Overview
The Material Safety Data Sheet (MSDS) for the AS702035 (report DSP26080634-1, issued August 28, 2026) follows ISO 11014:2009 and GB/T 16483-2008 standards, and references IATA DGR 67th edition and IMDG 42-24 for transport classification.
Transport classification (from Section 14):
- UN Number: UN3480 (Lithium ion batteries)
- Hazard Class: 9 (Miscellaneous dangerous goods)
- Watt-hour rating: 1.665Wh (well below the 100Wh threshold for most restrictions)
- Air (IATA DGR 67th): Eligible under PI965 Section II for batteries alone, PI966/PI967 for packed with or contained in equipment. State of charge must not exceed 30%.
- Sea (IMDG 2024): Shipped per IMDG Code with proper packaging and documentation.
The MSDS also covers first-aid measures, fire-fighting procedures, accidental release handling, storage conditions, and disposal guidance. We provide the full MSDS PDF with every order and upon request for regulatory submissions.
Shipping & Packaging Validation Tests
Beyond UN38.3 cell-level testing, the AS702035 shipping packaging has been independently validated for transport durability. Both tests were conducted by ZRLK in August 2026.
3-Meter Stacking Test (Report DSP26080634-5)
This test verifies that the outer carton can withstand the weight of other packages stacked on top during warehouse and transport storage.
| Parameter | Value |
|---|---|
| Packaging | 5-layer corrugated carton |
| Battery Model | 702035 (3.7V 450mAh 1.665Wh) |
| Test Standard | UN Model Regulations 6.1.5 (3m stacking) |
| Duration | 24 hours |
| Result | Pass. No cell leakage, no carton deformation, no instability. |
1.2-Meter Drop Test (Report DSP26080634-4)
This test simulates accidental drops during handling. The package is dropped from 1.2 meters onto a rigid surface per UN Model Regulations Special Provision 188.
| Parameter | Value |
|---|---|
| Drop height | 1.2 meters |
| Test Standard | UN Model Regulations Special Provision 188 |
| Battery Model | 702035 (3.7V 450mAh 1.665Wh) |
| Result | Pass. Carton not cracked, contents not damaged, no leakage. |
These packaging tests matter because even a cell that passes UN38.3 can be damaged in transit if the outer packaging fails. We validate both the cell and the shipping carton. For OEM-specific packaging and branding options, see our custom battery packaging solutions.
Protection Circuit Module (PCM)
The AS702035 pack includes an integrated protection circuit module with premium components. This is what prevents the cell from entering unsafe conditions during charging and discharging:
| Component | Part Number | Manufacturer |
|---|---|---|
| Protection IC | S-8261DAA-M6T1U | Seiko Instruments |
| MOSFET (charge/discharge control) | 8205A | — |
PCM protection parameters:
- Over-charge protection voltage: 4.28 ± 0.025V
- Over-discharge protection voltage: 3.00 ± 0.050V
- Over-current protection: 1.0–4.0A
- Normal operation current consumption: ≤7μA (minimal standby drain for long shelf life)
The Seiko S-8261 series is a widely trusted protection IC in the wearable and portable electronics battery industry, known for tight voltage tolerance and low power consumption.
Why Full Certification Matters for OEM Buyers
When you source a LiPo battery from an uncertified supplier, you inherit three risks that can kill your product launch:
- Shipping rejection. Airlines require a valid UN38.3 test summary before accepting lithium battery cargo. No UN38.3 = your goods stay at the origin airport. The AS702035 has UN38.3 (DSP26080634-2) plus the required test summary (DSP26080634-3), MSDS (DSP26080634-1), and packaging tests (DSP26080634-4/5).
- Regulatory delay. If your end product requires CE, RoHS, or other market-access certification, the battery inside must have its own compliance documentation. A consumer-grade cell without proper certification will stall your device approval by months. The AS702035 holds CE and RoHS compliance.
- Field failure and liability. Cells without proper protection circuits and safety testing can swell, leak, or catch fire under abuse conditions. The AS702035 uses a Seiko-based PCM with over-charge, over-discharge, and over-current protection, and has passed short-circuit, crush, overcharge, and forced discharge tests with zero fire or explosion.
For medical device OEMs, the documentation bar is even higher—see our custom medical batteries page for ISO 13485-aligned quality and traceability requirements. Not sure whether LiPo or Li-ion is right for your project? Read our LiPo vs Li-ion comparison.
Frequently Asked Questions
1. Is the AS702035 UN38.3 certified?
Yes. The AS702035 passed all 8 UN38.3 tests (Revision 8) at ZRLK laboratory. Report number DSP26080634-2, issued August 28, 2026. The UN38.3 test summary (DSP26080634-3) is available for shipping documentation.
2. What is the watt-hour rating of the 3.7V 450mAh battery?
The rated energy is 1.665Wh (3.7V × 0.45Ah). This is well below the 100Wh threshold, simplifying air and sea transport compliance under UN3480.
3. Does the battery include a protection circuit?
Yes. Every AS702035 pack includes an integrated PCM with Seiko S-8261DAA-M6T1U IC and 8205A MOSFET, providing over-charge (4.28V), over-discharge (3.00V), and over-current (1.0–4.0A) protection. Normal operation current consumption is ≤7μA.
4. What is the maximum state of charge for shipping?
Per IATA DGR and the MSDS, lithium-ion cells must be shipped at a state of charge (SoC) not exceeding 30% of rated capacity. We ship all AS702035 cells at the required SoC level.
5. Can the battery be shipped by air?
Yes. With a 1.665Wh rating and valid UN38.3 test report, the AS702035 qualifies for air transport under UN3480 Section II. The air transport identification report is available for download. We also provide sea transport documentation.
6. Can I customize the capacity, voltage, or connectors?
Yes. As an OEM/ODM manufacturer, we offer custom dimensions (from 0.4mm ultra-thin), capacities from 10mAh to 10,000mAh+, multi-cell configurations (7.4V, 11.1V, 14.8V), custom connectors (JST, Molex, solder pads), and OEM labeling. Request a custom quote →
7. How long is the sample lead time?
Standard samples typically ship within 2–4 weeks. Mass production takes 4–6 weeks after sample approval. Custom configurations may require additional development time.
8. Where can I buy the AS702035 battery?
Visit the AS702035 product page for pricing and ordering, or contact us directly for OEM/ODM inquiries.
Download AS702035 Certificates & Documentation
All AS702035 certification documents are available for immediate download. The core certificates are below; the full package (air transport report, sea transport report, UN38.3 summary, stacking test, drop test) is available on request.
- CE, RoHS compliant
- UN38.3 full test report + shipping summary (DSP26080634-2 / -3)
- MSDS (DSP26080634-1), 3M stacking test (DSP26080634-5), 1.2M drop test (DSP26080634-4)
- Air & sea transport identification reports
- Seiko S-8261DAA-M6 PCM with over-charge, over-discharge, and over-current protection