KEY TAKEAWAYS
China produces over 90% of the world's power banks and chargers. Most established power bank factories also manufacture GaN chargers, wireless chargers, and car chargers on shared production lines. This guide profiles major OEM/ODM manufacturers for 2026 by capacity, certifications, and MOQ.
- China produces 90%+ of the world's power banks and chargers, concentrated in three manufacturing hubs: Shenzhen (innovation, fast turnaround, higher cost), Dongguan (mid-scale, balanced cost-quality), and Guangzhou (high-volume, lowest cost). Most established factories run shared lines producing power banks, GaN chargers, and wireless chargers simultaneously.
- Top-tier OEM factories share 5 characteristics: (1) ISO 9001 + BSCI/SEDEX certified, (2) 50,000+ units/month capacity per product line, (3) in-house SMT and injection molding, (4) dedicated English-speaking project manager, (5) a reference list with at least 3 Western brand clients you can verify independently.
- Factory verification red flags: "We can do any product" without specialization, unwillingness to provide a BOM with component brands, MOQ below 100 units (likely a trading company, not a factory), no video tour of the production floor within 24 hours of request, and quotes 30%+ below market average.
- MOQ and pricing benchmarks for 2026: 5,000mAh basic ~$2.80-3.50 at MOQ 1,000, 10,000mAh with display ~$5.00-7.00 at MOQ 500, 20,000mAh 65W ~$10.00-13.00 at MOQ 500. Add 15-25% for premium cells (LG, Samsung SDI, Panasonic) vs standard Chinese cells (EVE, Highstar, BAK).
Table of Contents
Need a quick pick? If you want flexible MOQ (500+ units) with semi-solid-state battery tech, check WOWOHCOOL's power bank lineup →
1. How Were These Power Bank Manufacturers Selected?
China makes over 90% of the world's power banks. Thousands of factories sit across Shenzhen, Guangzhou, and Dongguan. However, finding real OEM/ODM suppliers among trading firms is hard. Our selection criteria includes:
- Production capacity, minimum 500,000 units/month
- Certifications, CE, FCC, RoHS, UN38.3 (minimum)
- ISO 9001 quality management, certified manufacturing processes
- OEM/ODM experience, proven track record with international brands
- R&D capability, in-house engineering for custom designs
- Client references, verifiable B2B partnerships
2. Top Power Bank Factories in China
WOWOHCOOL (Dong Yi Technology)
Shenzhen, Guangdong | Founded 2013
Specializes in semi-solid-state battery power banks, PD 3.1 240W laptop power stations, Qi2 wireless magnetic models, and heating battery solutions. ISO 9001 certified with 50+ R&D engineers. Clients include Jacob Jensen and Bosch. MOQ 500+ units.
Anker Innovations (OEM Division)
Established consumer charging brand with PowerIQ and GaN tech. Anker's OEM arm supplies major retail chains worldwide. Their R&D team builds compact GaN chargers and multi-port power stations.
Certifications: UL, FCC, CE, RoHS. Known for the PowerCore series and GaNPrime chargers. Their Shenzhen plant spans 50,000+ sqm with automated SMT lines.
Xiaomi Supply Chain (ZMI)
Major supplier for Xiaomi's power bank lineup. ZMI makes the well-known 20000mAh 50W and 10000mAh 33W models sold through Xiaomi's global reach. Known for low pricing at scale and solid BMS design.
Certifications: CE, FCC, RoHS, UN38.3. Strong R&D in high-density battery packing. Less flexible for custom branding than pure OEM makers.
Baseus Manufacturing
Known for distinctive GaN designs with strong industrial design focus. Baseus grew fast through creative product differentiation. Their 65W GaN power bank with a built-in cable achieves high volume on global platforms.
Certifications: FCC, CE, RoHS, UL. Strong in-house design team. Baseus mostly sells their own brand but takes select ODM projects with 3,000+ units per SKU.
Romoss Technology
One of China's largest power bank manufacturers by volume, shipping over 20 million units per year. Romoss focuses on cost-effective, reliable power banks for price-sensitive markets like Southeast Asia, Africa, and South America. Their 30000mAh Sense series is a high-volume seller worldwide.
Certifications: CE, FCC, RoHS, UN38.3. Vertically built with in-house cell packing and molding. OEM/ODM services with dedicated teams for global clients.
Huntkey Industry Group
Publicly listed on the Shenzhen Stock Exchange. Huntkey makes power supplies and battery solutions for big clients in telecom, medical, and industrial fields that need strict quality standards.
Certifications: UL, CE, FCC, CCC, ISO 9001/14001. Their 100,000+ sqm plant has EMC chambers, test labs, and auto assembly lines. Top choice for large contracts with strict compliance needs.
Aohai Technology
Focuses on rugged power banks and outdoor energy gear. Aohai's line includes IP67 waterproof power banks, solar-charging 40000mAh units, and industrial battery packs. Their products are popular with outdoor brands and government buyers.
Certifications: IP67, CE, FCC, RoHS, UN38.3. In-house drop testing, waterproof checks, and temp cycling labs. Good partner for outdoor, camping, and industrial product lines.
Allway Group
Hong Kong-based maker with a Shenzhen plant focused on wireless power banks. Allway was an early adopter of Qi wireless charging. They have deep know-how in coil design, FOD tuning, and wireless charging performance.
Certifications: CE, FCC, RoHS, Qi (WPC). Known for slim 10000mAh magnetic wireless power banks. Flexible MOQ makes them open to startups testing the market. Offer ready ODM designs with fast custom work.
Oppo/Vivo Supply Chain Partners
A network of mid-sized factories in the Pearl River Delta that build for Oppo and Vivo's accessory supply chain. These suppliers keep the strict quality that top phone brands demand, 100% testing and traceable records.
Certifications: CE, FCC, RoHS, UN38.3. Strong in VOOC/SuperVOOC fast charging and custom protocols. Limited design freedom since lines are set for specific builds. Best for brands that need carrier-grade quality.
Shenzhen Jinya Electronics
Niche maker of ultra-thin, travel-friendly power banks. Jinya's specialty: slim power banks under 12mm thick with up to 10000mAh. Ideal for hotels, corporate gifts, and boutique brands.
Certifications: CE, FCC, RoHS, UN38.3. Strong in custom packing and branding. Their design team does minimalist looks and premium finishes like vegan leather, metal coats, and custom colors. Good for premium gift and hotel projects.
3. Quick Comparison
| Manufacturer | MOQ | Max Power | Best For |
|---|---|---|---|
| WOWOHCOOL | 500 | 140W PD 3.1 | Semi-solid-state, heating batteries, flexible MOQ |
| Anker OEM | 10,000+ | 87W | High-volume, premium brand partnerships |
| Xiaomi/ZMI | 5,000+ | 100W | Cost-effective at scale |
| Romoss | 2,000+ | 65W | Mass production, standard designs |
| Huntkey | 3,000+ | 100W | Enterprise contracts, certified quality |
Internal PCBA and battery cell structure of OEM power bank manufacturing
Now that you have seen the top manufacturers, the next step is choosing the right partner for your specific needs. Here is a practical guide to making that decision.
4. How to Choose the Right Power Bank Supplier?
1. Define Your Requirements First
Before you contact an OEM power bank supplier, know your target capacity (mAh), output power (W), battery type, certs needed, and target price. Product categories vary widely, from ultra-thin semi-solid-state models to 240W laptop power stations, so define your product type before reaching out.
"Sarah spent three months talking to a factory that claimed 20,000mAh capacity. After samples came, tests showed only 14,200mAh, a 29% gap. She switched to a maker with verified test reports and launched on time."
2. Verify Factory Credentials
Ask for ISO 9001 certs, CE/FCC test reports, and UN38.3 battery safety papers. Real factories should give these without delay.
3. Check MOQ Alignment
Factory MOQ varies a lot, from 500 units (WOWOHCOOL, Allway) to 10,000+ (Anker). Pick a supplier whose MOQ fits your order size. Don't over-commit to high MOQs as a startup.
4. Request Samples
Always order samples before bulk orders. A reliable maker will send samples in 3-7 days. Test charging speed, build quality, battery life, and cert claims.
5. Evaluate R&D Capability
For custom ODM projects, make sure the maker has in-house engineers. Ask about their PCB design, tooling, and heat management skills.
Quality control testing ensures every power bank meets OEM manufacturing standards
67W PD fast charging power bank - popular OEM/ODM product for global brands
5. Which Manufacturing Hub Is Best for Power Banks?
Your choice of power bank supplier location impacts cost, speed, and quality. Here is how the three main hubs compare:
Shenzhen: Core Manufacturing Hub
The biggest electronics hub in the world. Shenzhen offers the fastest prototyping (48-hour PCB), the widest parts access, and the most skilled R&D engineers. Labor costs are highest here but still competitive globally.
Best for: Custom OEM projects, fast prototyping, premium products, complex designs. WOWOHCOOL is based here, with 24-hour engineering support and same-day part sourcing.
Dongguan: Secondary Production Zone
Home to massive factories with lower land and labor costs. Dongguan is the manufacturing backbone of the Pearl River Delta. It has hundreds of mid-to-large battery and power bank factories with a strong PCB and molding supply chain.
Best for: High-volume runs, cost-sensitive projects, established designs. Good when you need scale without Shenzhen prices.
Guangzhou: Trade & Export Hub
A growing hub with more battery and accessory factories. Guangzhou offers pricing between Shenzhen and Dongguan, with good port access for export. The Canton Fair (held here twice a year) is a natural meeting point for global buyers.
Best for: Mid-volume production, export ease, Canton Fair sourcing. Good for brands that value logistics speed.
Insider Tip: Many Shenzhen makers (including WOWOHCOOL) have extra lines in Dongguan for big orders. This gives you Shenzhen R&D speed with Dongguan's low costs at scale.
EXPERT INSIGHT
"When evaluating power bank manufacturers, the difference between a factory that passes audit and one that doesn't comes down to three things: cell traceability, QC documentation, and willingness to share a live video tour. A factory that has all three is worth paying a 5-10% premium for, you'll recover it in lower defect rates alone."
, Snowy May, Market Manager at WOWOHCOOL
WOWOHCOOL FACTORY STAT
Ranked #1 in this guide, WOWOHCOOL (Dong Yi Technology) produces semi-solid-state power banks, Qi2 wireless magnetic models, and PD 3.1 240W laptop power stations, serving clients including Jacob Jensen and Bosch. ISO 9001 certified with 50+ R&D engineers and MOQ starting at 500 units.
EXPERT INSIGHT
"Manufacturer selection is the single most important decision for your power bank brand. A certified factory with verifiable test reports and flexible MOQ will save you months of headaches. We recommend always starting with sample orders and third-party audits before committing to full production."
, Snowy May, Market Manager at WOWOHCOOL
For a detailed breakdown of OEM versus ODM manufacturing models, read our complete OEM vs ODM comparison guide. If you are ready to verify potential partners, our factory verification checklist covers every audit step.
6. Beyond Power Banks: Charger Manufacturers in China
If you are sourcing power banks from China, chances are you also need GaN chargers, wireless chargers, or car chargers. The good news: most power bank factories already produce these products on shared SMT lines and use the same battery management and power delivery engineering teams.
Why the overlap? Power banks and wall chargers share core technologies, PD/QC protocol ICs, GaN switching transistors, thermal management, and safety certification processes. A factory that builds 140W PD 3.1 power banks already has the GaN expertise, PCB layout skills, and UL/CE test infrastructure to produce matching wall chargers and car chargers. For B2B buyers, this means one supplier, one audit, multiple product lines, reducing lead time and compliance costs by 30-40%.
Key Charger Manufacturers Also Producing Power Banks
- WOWOHCOOL, Full-range charging ecosystem: GaN chargers (35W-140W), Qi2 wireless chargers, MagSafe car mounts, and power banks spanning semi-solid-state, 2-in-1 hybrid chargers, and TFT smart display models. Single-source OEM with MOQ 500 across all categories.
- Anker Innovations, GaNPrime wall chargers (up to 150W), PowerWave wireless pads, and car charger lines. High MOQ (10,000+) but unmatched brand recognition for retail partnerships.
- Baseus, Known for 65W-100W GaN chargers with integrated cables, 15W MagSafe wireless chargers, and compact car chargers. Strong industrial design team for ODM projects.
- Huntkey Group, Enterprise-grade USB-C chargers, multi-port GaN stations, and certified car chargers for automotive OEMs. ISO 14001 environmental certification for EU market compliance.
- Aohai Technology, Rugged car chargers (IP67), outdoor solar charging panels, and industrial-grade GaN adapters for harsh environments.
Charger Manufacturer Comparison
| Manufacturer | Product Lines | Certifications | MOQ | Key Technology |
|---|---|---|---|---|
| WOWOHCOOL | GaN charger, Qi2 wireless, car charger, power bank | CE, FCC, UL, RoHS, Qi2 (WPC), UN38.3 | 500 | Semi-solid-state battery, PD 3.1 140W, MagSafe |
| Anker | GaN charger, wireless pad, car charger, power bank | UL, FCC, CE, RoHS, USB-IF | 10,000+ | GaNPrime, PowerIQ 4.0, 150W multi-port |
| Baseus | GaN charger, MagSafe wireless, car charger, power bank | FCC, CE, RoHS, UL | 3,000+ | 100W GaN, integrated cable design |
| Huntkey | USB-C charger, GaN station, car charger, power bank | UL, CE, FCC, CCC, ISO 14001 | 3,000+ | Multi-port GaN, enterprise-grade PSU |
| Aohai | Rugged car charger, solar panel, GaN adapter, power bank | IP67, CE, FCC, RoHS, UN38.3 | 1,000+ | IP67 waterproof, outdoor solar charging |
Frequently Asked Questions
What is the average MOQ for power bank factories in China?
MOQ ranges from 500 to 10,000 units depending on OEM vs ODM. Standard ODM with custom logo starts at 500 units. Custom OEM with new tooling typically requires 3,000+ units. WOWOHCOOL offers flexible MOQ starting at 500 units with model mixing across SKUs. Trial orders available for market validation before scaling to container volumes.
What is the FOB Shenzhen pricing range for OEM power bank manufacturing?
B2B pricing depends on capacity, battery type, cell grade, and order volume. Budget tier (generic Chinese cells): 5,000mAh basic ~$2.80-3.50/unit at MOQ 1,000. Premium tier (Grade-A cells: LG, Samsung SDI, Panasonic): 5,000mAh ~$4.20-5.80/unit. 10,000mAh with display: $5.00-7.00/unit (standard cells), $6.00-9.00 (premium). 20,000mAh 65W: $10.00-13.00/unit (standard), $12.00-16.00 (premium). Semi-solid-state 10,000mAh: $14.00-18.00/unit. Add $0.50-1.50/unit for custom packaging and branding. Prices decline 8-15% at 5,000+ units. All prices FOB Shenzhen.
What certifications are required for selling power banks in the US and EU?
US requires FCC Part 15B and UL 2056 (strongly recommended by Amazon and major retailers, products without UL face delisting). EU requires CE marking (LVD+EMC), RoHS, and EU Battery Regulation 2023/1542 compliance. For air shipping: UN38.3 test certification is mandatory (included in CE/FCC/RoHS package $2,000-4,000). Budget 6-10 weeks for full US+EU certification. Always verify certificates on the issuing body's public database, never accept PDF-only certificates.
Which Chinese city has the strongest power bank manufacturing ecosystem?
Shenzhen is the leading hub, the densest concentration of battery suppliers, mold makers, and electronics component markets in the world. Dongguan excels in high-volume production with lower labor costs. Many Shenzhen manufacturers (including WOWOHCOOL) run additional production lines in Dongguan for large-volume orders, combining Shenzhen R&D speed with Dongguan's scale economics.
How do OEM buyers verify a power bank factory in China before placing an order?
Five steps: (1) Request ISO 9001 certification and verify on the issuing body's database. (2) Conduct a same-day video tour, a real factory complies within 30 minutes. (3) Demand UN38.3 test certification and Grade-A cell supplier certificates. (4) Request 3 client references in your target market and actually contact them. (5) Order 3-5 samples and test actual capacity at 5V/2A output. Red flags: refuses video tour, cannot name their cell suppliers, quotes 50% below market average. WOWOHCOOL welcomes factory audits and provides full documentation with every OEM inquiry. Request a factory video tour or sample order.
Market Manager · Wireless Charging & Market Analysis
10+ years experience in wireless charging and power bank market analysis. Market Manager at WOWOHCOOL tracking global trends in GaN, Qi2, and battery technology.
Factory Footprint
ISO 9001 Facility
Shenzhen, China
Export Countries
Engineers In-House
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