Rechargeable battery China ROHS 10 test process
Date：2025-08-21 11:33:46 Classification
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The complete process and key points for the 10 China RoHS testing items for rechargeable batteries, integrated from the latest regulations and practical guides:
I. Core Testing Process
1. Confirming the Scope of Application
- Rechargeable batteries, including lithium-ion batteries and nickel-metal hydride batteries, are subject to China RoHS 2.0 (GB/T 26572) and require testing for 10 hazardous substances:
- Heavy metals: lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr⁶⁺)
- Flame retardants: polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE)
- Plasticizers: phthalates (DEHP, BBP, DBP, DIBP).
- Special Standards: Zinc-manganese/alkaline batteries must additionally comply with GB 24427 (limits of mercury, cadmium, and lead).
2. Prepare Application Materials
- Basic Documents: Application Form, Product Model List, Technical Specifications, Bill of Materials (BOM);
- Sample Requirements:
- Quantity: 3-4 complete batteries (must be fully charged and then completely discharged to prevent short circuits during transportation);
- Pretreatment: Insulate and wrap metal parts to prevent contact short circuits.
3. Laboratory Testing
- Testing Methods:
- Heavy Metals/Flame Retardants: XRF Scanning + Chemical Analysis;
- Phthalates: GC-MS/HPLC testing required (focus on plastic components).
- Limit Requirements:
| Substance Category | Limit Value |
| Lead/Mercury/Hexavalent Chromium, etc. | ≤0.1% |
| Cadmium | ≤0.01% |
| Phthalates | ≤0.1% (single item) |
4. Obtaining Reports and Labels
- Obtain a CNAS/CMA-certified compliance report upon passing the test;
- Products must be affixed with a green "e" label indicating the hazardous substance content, environmentally friendly use period, and recycling symbol.
II. Key Notes
1. Exemptions
- Mercury exemption: ≤2% for button batteries, ≤0.0005% for other batteries;
- Cadmium exemption: Only for batteries used in medical/emergency equipment (certification required).
2. Cycle and Cost
- Cycle: Normally 5-7 working days, with o-phenyl ester testing extended to 10 days;
- Cost:
- Basic 10 items: ￥1,000–￥1,500;
3. Collaborative Certification Recommendations
- Exports to the EU require the addition of the 10 EU RoHS items (the requirements for o-phenyl ester are the same, but the cadmium limit is stricter);
- Power batteries require the addition of the GB 31241 safety standard.
III. Efficiency Strategies
- Report Integration: If the module has already been tested for 6 RoHS items, the 4 o-phenyl ester items can be tested separately and consolidated into a single report to reduce costs;
- Institution Selection: Prioritize laboratories with battery testing qualifications (such as Dezewei Certification);
Operational Flowchart:
A [Confirm product type] --> B [Prepare samples and BOM]
B --> C [Select CNAS laboratory]
C --> D [Test for 10 hazardous substances]
D --> E [Does it meet the standards? }
E -->|Yes|F[Obtain report + affix green 'e' mark]
E -->|No|G[Retest after correcting materials]
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