High-Capacity Power Banks
OEM/ODM from Shenzhen
6 specialized product lines: semi-solid-state, Qi2 wireless magnetic, heated apparel batteries, 2-in-1 hybrid chargers, PD 3.1 240W laptop power banks, and TFT smart display. Grade A cells, UN38.3 certified for air shipping. From 1,800mAh heating batteries to 27,000mAh laptop-grade power stations.
2013
Est.
40+
Models
240W
PD 3.1
500+
MOQ
Certifications & Standards
Quality Certified for Global Markets
CE
FCC
TÜV GS
Qi2
RoHS
ISO 9001
UN38.3
PD 3.1
Years Experience
Global Brands
Units/Month
Production
R&D Engineers
Defect Rate
Trusted by 200+ Global Brands
Product Range
Power Bank Categories
As a power bank OEM factory with 12 years of manufacturing experience, WOWOHCOOL offers 6 specialized product lines covering every B2B use case — from next-gen semi-solid-state batteries to heated apparel power solutions. Each category page includes full specs, certifications, and factory-direct pricing. Click any category below to request a quote.
Semi-Solid-State
Next-gen battery tech. 50% thinner, 30% higher density. PD 55-65W. UN38.3 certified.
Wireless / Magnetic
Qi2 15W magnetic charging. MagSafe-compatible for iPhone 12-16 series.
Heating Battery
7.4V batteries for heated jackets, gloves, socks, scarves, pillows. CE/PSE certified.
2-in-1 Hybrid Charger
Wall charger + power bank combo. AC plug folds flat. Travel-friendly hybrid.
Laptop Power Bank
High-power PD 3.1 for MacBook Pro, Dell XPS, ThinkPad, gaming laptops. 65W to 240W output.
Smart Display (TFT)
Premium TFT screen with real-time charging stats. Aluminum + tempered glass.
WOWOHCOOL is a custom power bank supplier offering factory-direct OEM/ODM manufacturing from Shenzhen, China. Our semi-solid-state power banks use CES 2026 award-winning battery technology for 50% thinner profiles. The Qi2 wireless magnetic line supports MagSafe-compatible charging across 11 models. For heated clothing brands, our heating battery series covers 7.4V DC solutions from gloves to jackets. Business travelers benefit from our 2-in-1 hybrid charger with built-in AC plugs, while power users need our PD 3.1 240W laptop power banks. Premium positioning is served by our TFT smart display power banks with real-time wattage monitoring.
Perfect for Your Business
Thousands of businesses trust WOWOHCOOL for their power bank sourcing. See which profile fits you.
Amazon & e-Commerce Sellers
Private-label power banks with retail-ready packaging. PD 3.1 and semi-solid-state options for market differentiation.
- ✓ Custom branding & packaging
- ✓ MOQ from 500 units
- ✓ Amazon-compliant certifications
Travel & Outdoor Brands
Lightweight high-capacity power banks for travel gear lines. Semi-solid-state technology for extreme temperature performance.
- ✓ Slim & lightweight designs
- ✓ Semi-solid-state options
- ✓ Retail packaging included
Corporate Gifts & Promotions
Custom power banks for corporate gifting, trade shows, and promotional events. Full color and logo customization available.
- ✓ Full-color branding
- ✓ Low MOQ for pilot orders
- ✓ Express shipping available
Technology
Semi-Solid-State vs Li-Polymer vs LiFePO4
Semi-solid-state replaces liquid electrolyte with a gel-like solid, delivering higher density and safer chemistry. Global power bank market: $22.1B by 2030 (NextMSC).
| Spec | Semi-Solid-State WOWOHCOOL |
Li-Polymer Standard |
LiFePO4 Industrial |
|---|---|---|---|
| Cycle life | 2,000+ cycles | 5000 | 2,000+ |
| Energy density | 30% higher | Baseline | 30% lower |
| Fire risk | Minimal (gel electrolyte) | Moderate | Very low |
| Profile thickness | 50% thinner | Standard | Bulky |
| Fast charging | PD 3.1 up to 140W | Up to 67W | Up to 45W |
| Weight | 20% lighter | Baseline | 40% heavier |
| OEM unit cost | +150% | Baseline | +50% |
Sources: ELECOM (2,000 cycles, May 2026), Meenova SolidPower (Kickstarter, May 2026), TechTimes (safety comparison, May 2026). Global power bank market: $22.1B by 2030 (NextMSC).
Not All Factories Are Equal
See how WOWOHCOOL compares to typical power bank OEMs in China.
| WOWOHCOOL | Typical Factory | |
|---|---|---|
| Semi-Solid-State Battery | — Deployed | ✗Not available |
| Fast Charging Standard | PD 3.1 up to 240W | PD 3.0 up to 100W |
| Named Enterprise Clients | Bosch, Jacob Jensen | Generic references |
| Capacity Range | 5,000 - 60,000mAh | 5,000 - 20,000mAh |
| R&D Engineers | 50+ | 10-20 typical |
Don't settle for generic, partner with a factory that Fortune 500 companies trust.
Choose the Right Capacity for Your Market
Different markets need different capacities. Find the perfect balance of size, power, and price for your target customers.
Slim Series (5K-10K)
Ultra-slim profiles designed for everyday carry. Perfect for wholesale, promotional products, and travel accessories.
- 5,000mAh - 10,000mAh
- 10mm ultra-slim form factor
- Lightweight (150-200g)
- Budget-friendly for bulk orders
Mid-Range (15K-20K)
Balanced capacity for travelers and professionals. Powers multiple devices with fast charging support.
- 15,000mAh - 20,000mAh
- PD 45W-65W output
- Charge 2-3 devices simultaneously
- Airline carry-on approved
High-Power (27K-40K)
Maximum capacity for laptops and professional equipment. Ideal for power users and mobile workstations.
- 27,000mAh - 40,000mAh
- PD 3.1 140W output
- Charges MacBook and laptops
- Bulk wholesale pricing
Compliance
EU Battery Regulation 2023/1542 Compliance
All lithium power banks sold in the EU must comply with Regulation 2023/1542. WOWOHCOOL provides full compliance documentation and registration support.
EPR Registration
Extended Producer Responsibility is mandatory before your first EU sale. We handle the paperwork.
- EAR Foundation registration (DE)
- EPR equivalents: AT, CH, FR, IT, ES
- Annual volume reporting included
EU Authorized Rep
Non-EU manufacturers must appoint an Authorized Representative. We connect you with verified partners.
- Required under Art. 4 of 2023/1542
- Verified partners: DE, UK, FR, ES
- Full DoC documentation support
Digital Battery Passport
Mandatory from February 2027. QR code with full lifecycle data for every battery sold in the EU.
- QR-code-ready labeling
- Chemistry, capacity, cycle data tracked
- We prepare your data from production day 1
What Our B2B Partners Say
Trusted by distributors, brands, and procurement teams across 50+ countries since 2013.
"We ordered 3,000 units of the WOP22 130W for our Amazon US store. The UN38.3 certification made customs clearance smooth. Had a minor QC issue with the first batch - their team responded within 24 hours and sent replacement units. Second order was perfect."
Marcus T.
Amazon Seller, Consumer Electronics
Phoenix, Arizona, USA
"As an electronics importer, I've worked with many Chinese factories. WOWOHCOOL stands out for their documentation quality. Every unit came with proper CE/FCC certificates and the packaging met EU regulations. The semi-solid-state power banks we sourced are flying off shelves."
Klaus B.
Procurement Director
Munich, Germany
"We source branded power banks for corporate gifts. The 2-in-1 hybrid chargers (WOP67) were exactly what our tech company clients needed. Nico from their team is responsive - sometimes too many emails but quality makes up for it. Would recommend for bulk corporate orders."
Sarah W.
Purchasing Manager
London, UK
"Found them through the Alibaba verification. Their factory is real - we did a video call audit before ordering. Delivered 5,000 power banks to Brazil with complete documentation. Shipping took 45 days by sea which is normal. Communication could be faster during holidays."
Ricardo M.
Import/Export Manager
São Paulo, Brazil
"We order branded power banks monthly for hotel amenity programs across the Middle East. The WOP25 with TFT display is popular with guests. One shipment had color matching issues (custom orange was slightly off) - they corrected it in the next batch without argument."
Ahmed K.
Operations Director
Dubai, UAE
"Ordered samples first (2 units) to test quality. The samples were shipped fast and worked well. Placed bulk order for 2,000 units of the WOP23 240W. Production took about 30 days, QC photos were sent before shipping. Good experience overall for laptop power banks."
Jennifer L.
Buyer, Electronics Retail Chain
Toronto, Canada
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FAQ
Power Bank FAQ
Essential for OEM/ODM partnerships
What is the MOQ for OEM power bank orders?
What capacity options do you offer?
What certifications do your power banks have?
Can you customize the design?
What is the production lead time?
Do you offer semi-solid-state or solid-state battery power banks?
Do you offer heating batteries for heated clothing?
What is the MOQ for heating battery OEM orders?
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