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
CE
FCC
RoHS
UN38.3
ISO 9001Technology
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 | 500–800 | 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 | +15–20% | Baseline | +5–10% |
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).
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
Certified for Global Markets
All products undergo strict UN38.3 and MSDS certification for 100% legal and safe global shipping. CE, FCC, RoHS certified.
Trusted by
Jacob Jensen
Bosch
200+ Global Brands
10M+ Units Shipped
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.
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 registration for EU markets. Required before first sale. We assist with registration.
EU Authorized Rep
Non-EU manufacturers need an Authorized Representative. We provide contacts for UK, DE, FR, ES markets.
CE + UN38.3 Docs
Full documentation: CE Declaration of Conformity, UN38.3 transport test report, MSDS/SDS safety data sheet.
Battery Passport
Digital Battery Passport (required 2027+). QR code with chemistry, capacity, recycling data. We prepare early.
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.
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
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
Ready to start your project?
Power Bank FAQ
Essential for OEM/ODM partnerships
What is the MOQ for OEM power bank orders?
Our MOQ is 500 units per SKU for standard models. Custom ODM projects with unique battery cell configurations (such as semi-solid-state) require 1000+ units. We provide flexible MOQ options for startup brands, contact us to discuss your volume requirements.
What capacity options do you offer?
We manufacture from 5,000mAh to 40,000mAh. Popular options: 10,000mAh (slim), 15,000mAh (hybrid), 20,000mAh-27,000mAh (high-capacity). All use Grade A Li-polymer cells.
What certifications do your power banks have?
All power banks are CE, FCC, RoHS certified and UN38.3 tested for safe air transport. We provide complete documentation including MSDS reports.
Can you customize the design?
Yes. Our OEM/ODM service includes custom CMF, logo printing, packaging design, and capacity configuration. Power bank-specific options include TFT display integration, wireless charging pads, 2-in-1 hybrid designs (wall charger + power bank), and semi-solid-state battery technology.
What is the production lead time?
Standard OEM: 25-35 days after sample approval. Custom ODM: 45-60 days. Express tooling and rapid prototyping services available.
Do you offer semi-solid-state or solid-state battery power banks?
Yes. We offer semi-solid-state battery power banks — the CES 2026 award-winning technology. 50% thinner, 30% higher energy density, safer than Li-Po. Available in 5,000mAh–10,000mAh with Qi2.2 wireless charging support.
Do you offer heating batteries for heated clothing?
Yes. We manufacture specialized heating batteries for heated jackets, vests, socks, gloves, scarves, massage pillows, and hand warmers. Output voltages: 7.4V DC and 12.6V DC. CE, FCC, RoHS, and PSE certified. Custom OEM/ODM available.
What is the MOQ for heating battery OEM orders?
500 units per SKU. Custom wire length, connector types, and voltage configurations available for heated clothing manufacturers. CE, FCC, RoHS, and PSE certifications included.
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