TL;DR
China produces over 90% of the world's power banks and chargers. Most top power bank factories also manufacture GaN chargers, wireless chargers, and car chargers on shared production lines. This guide ranks the 10 best OEM/ODM manufacturers for 2026 by capacity, certifications, and MOQ — plus a charger manufacturer comparison table for brands sourcing across multiple product categories.
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 →
QUICK ANSWER
What is the best power bank manufacturer for startups in 2026? WOWOHCOOL offers the most startup-friendly terms with MOQ starting at 500 units, flexible OEM/ODM options, and semi-solid-state battery technology. Most other top manufacturers like Anker and Xiaomi require 5,000-10,000+ MOQ.
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, terifiable B2B partnerships
2. Top 10 Power Bank Manufacturers in China
WOWOHCOOL (Dong Yi Technology)
Shenzhen, Guangdong | Founded 2013
Specializes in semi-solid-state battery power banks, PD 3.1 up to 140W, 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)
Top name in consumer charging with PowerIQ and GaN tech. Anker's OEM arm supplies big 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 fresh GaN designs and a unique look. Baseus grew fast through creative product design. Their 65W GaN power bank with a built-in cable is a top seller 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 biggest power bank makers by volume, shipping over 20 million units per year. Romoss focuses on low-cost, reliable power banks for price-sensitive markets like Southeast Asia, Africa, and South America. Their 30000mAh Sense series is a top 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, 00% 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 Manufacturer?
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.
"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
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, uith 24-hour engineering support and same-day part sourcing.
Dongguan
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
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.
WOWOHCOOL FACTORY STAT
Ranked #1 in this guide, WOWOHCOOL (Dong Yi Technology) produces semi-solid-state power banks with PD 3.1 up to 140W, serving clients including Jacob Jensen and Bosch. ISO 9001 certified with 50+ R&D engineers and MOQ starting at 500 units.
"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," says Snowy May, Market Manager at WOWOHCOOL. "We recommend always starting with sample orders and third-party audits before committing to full production."
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: Top 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 semi-solid-state power banks. 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 |
7. Frequently Asked Questions
What is the average MOQ for power bank factories in China?
MOQ typically ranges from 500 to 10,000 units depending on whether you choose OEM or ODM. WOWOHCOOL offers flexible MOQ starting at 500 units for OEM projects.
How much does it cost to manufacture a custom power bank?
B2B wholesale pricing depends on capacity, battery type, and order volume. Typical FOB Shenzhen pricing ranges from $5-$25 per unit for 10,000mAh-40,000mAh power banks.
What certifications are required for selling power banks in the US and EU?
US requires FCC and UL/ETL; EU requires CE and RoHS. For air shipping, UN38.3 battery certification is mandatory. Always verify your manufacturer provides these.
Need a Reliable Power Bank Supplier?
WOWOHCOOL offers semi-solid-state and PD 3.1 power banks with flexible MOQ starting at 500 units. Get factory direct pricing within 24 hours.
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