Welcome to ANCI Website!
Certificate query
Follow WeChat
Anci Weibo
Sitemap
中文
anciContact Us
Service Hotline
net01@gtggroup.com
Mobile: 18826804895
FAX: 0769-85075898
E-mail: net01@gtggroup.com
Address: No. 11, headquarters 2 Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province
How to Obtain CB Certification for Power Banks: A Step-by-Step Practical Guide
Edit: ANCI 2026-05-15 180
1 Select NCB & Define Certification Strategy
CB certification must be applied through an NCB (National Certification Body). Major NCBs include:
| NCB | Characteristics | Best For |
|---|---|---|
| CQC | Largest Chinese NCB | Multi-market export, CQC domestic cert |
| CVC | Strong in battery/appliance sector | Battery products, Europe export |
| TÜV / SGS / UL | International recognition | US/EU markets, brand requirements |
Tip: If your cell supplier already has CB certification from a specific NCB, choose the same NCB for整机 certification to maximize report mutual recognition and minimize re-testing.
2 Prepare Application Documents & Technical File
Complete documentation is essential for efficient certification:
A. Application Documents
• CB certification application form (NCB-specific format)
• Model difference declaration (if applying for series coverage)
• Factory information form (name, address, contact)
B. Technical Documentation
• Product user manual (specifications, warnings)
• Circuit schematic, PCB layout
• BOM with key component certificates (cell CB/UL, IC certifications)
• Cell datasheet (safety parameters, discharge curves)
• Battery pack structure diagram, exploded view
• Product label/nameplate design (including warnings)
• BMS protection circuit description
C. Key Component Certificates
• Cells: IEC 62133-2 CB certificate or UL 1642/2054 certificate
• Protection IC: Relevant certifications (if available)
• Other key components: MOSFET, NTC certifications
3 Submit Samples for Testing
Send samples to a CBTL (CB Testing Laboratory) recognized by the NCB:
Sample Requirements
• Cells: 20-30 pieces (for IEC 62133-2 cell-level tests)
• Complete units: 5-10 units (for pack-level and整机 safety tests)
Testing Duration
• Full IEC 62133-2: 4-6 weeks
• If cells already CB certified: 2-3 weeks (reduced cell tests)
Test Scope
• Cell level: continuous charging, overtemperature, short circuit, forced discharge, mechanical, thermal abuse
• Pack level: overcharge/overdischarge/overtemperature/short circuit protection, free fall
• System level: IEC 62368-1整机 safety (if required)
4 Factory Inspection
CB certification requires factory inspection to verify production consistency control:
- Quality Management System: ISO 9001 certificate, quality manual, procedures
- Incoming Inspection: Cell inspection records, key component inspection records
- Production Control: Work instructions, in-process inspection records
- Final Inspection: Final inspection specifications, shipment inspection records
- Key Component Consistency: Control of key components between certified and shipped products
Factory inspection is required annually. Certificate validity is maintained through successful inspections. Inspection failure may result in certificate suspension or revocation.
5 Obtain CB Certificate & Convert to Target Market Certifications
After testing passes and factory inspection is completed, the NCB issues the CB Test Certificate. Validity: typically 3 years.
CB Certificate Utilization
- Direct Acceptance: Some markets/buyers directly accept CB certificates
- Conversion: Convert CB report to target market certification (CE, UL, PSE, KC, etc.)
- Test Reduction: When applying for other certifications, CB report reduces re-testing
For more power bank CB certification services, visit AnCi Testing.
Common Questions
Q: What's the difference between CB and CCC certification?
CCC is China's mandatory certification for the Chinese market only. CB is an international mutual recognition system for 50+ countries. CB testing is based on IEC standards; CCC testing is based on GB standards (technically aligned with IEC). A CB report can accelerate CCC application.
Q: If cells already have CB certification, does the整机 need re-testing?
Cell CB certification covers some tests, but the整机 still requires pack-level tests (overcharge/overdischarge/overtemperature/short circuit protection, free fall, etc.). BMS-cell matching must also be verified. Choosing the same NCB as the cell certification facilitates report mutual recognition.
Q: How to prepare for factory inspection?
Ensure QMS documents are complete (ISO 9001, quality manual, procedures). Prepare incoming inspection records for cells and key components. Document production control and final inspection. Maintain key component consistency records. Consider pre-inspection consultation to identify gaps.
This article is generated with AI assistance. Content is for reference only and does not constitute any certification commitment or legal advice.
Contact: net01@gtggroup.com | More services: AnCi Testing
Online Application
Global certification testing, please look for ANCI
Leave a message, certified engineers 1 to 1 technical guidance!
