Are the CUKTECH PB250 and ZMI QB826G the same power bank? The short answer is yes - and we have official manufacturer confirmation to prove it. Here's everything you need to know about these identical 25000mAh 210W power banks, including exclusive technical details you won't find elsewhere.
Official Manufacturer Confirmation
Update July 2025: The manufacturer confirmed that the CUKTECH PB250 and ZMI QB826G are identical products. We have the official test report documentation proving this.
Why This Matters: TechRadar's Top Rating
The ZMI 20 QB826G earned recognition in TechRadar's 2025 Top Portable Chargers review, praising its exceptional power delivery and build quality. Since the CUKTECH PB250 is the identical product, you're getting the same award-winning performance at a discounted price under different branding.
Quick Comparison Summary
| Feature | CUKTECH PB250 | ZMI QB826G |
|---|---|---|
| Actual Product | ✅ Same (Manufacturer Confirmed) | ✅ Same (TechRadar Reviewed) |
| Capacity | 25000mAh | 25000mAh |
| Max Output | 210W | 210W |
| Ports | 2× USB-C, 1× USB-A | 2× USB-C, 1× USB-A |
| Fast Charging | PD 3.0, PPS, QC | PD 3.0, PPS, QC |
| Battery Cells | Samsung/EVE Cells | Samsung/EVE (batch dependent) |
| Build Quality | Identical | Identical |
| Australia Stock | Shop CUKTECH PB250 Amazon Link |
Shop ZMI QB826G Amazon Link |
| Pricing | $129.99 | $169.99 |
Brand Relationship Explained (With Official Sources)
The Xiaomi Ecosystem Connection
ZMI is indeed a Xiaomi subsidiary brand. In March 2021, Xiaomi acquired 50.09% of ZMI's shares for $205 million, making ZMI a wholly-owned subsidiary of Xiaomi.. ZMI specializes in charging and power solutions within the broader Xiaomi ecosystem.
CUKTECH represents ZMI's evolution - it's the ZMI team's new specialized brand focusing exclusively on cutting-edge power bank technology and fast charging solutions.
Brand Hierarchy:
Key Relationships:
- ZMI is a 100% subsidiary of Xiaomi - Specializes in charging solutions within Xiaomi's ecosystem
- CUKTECH is co-founded by the ZMI team - New independent brand focusing exclusively on advanced power bank technology
- Same engineering expertise - CUKTECH benefits from ZMI's years of charging technology development
Exclusive Technical Details: Battery Cell Analysis
Important Battery Cell Differences
Through our manufacturer relationship, we've discovered critical information about battery cell variations:
ZMI QB826G Battery Cells (Batch Dependent):
- Early Batches: Samsung INR21700-50E, Samsung INR21700-50G cells
- 2024/2025 Current Batches: EVE INR21700-50E cells
CUKTECH PB250 Battery Cells (Consistent):
- Current Batches: Samsung INR21700-50G, EVE INR21700-50E cells
What This Means for You:
Bottom Line: All 3 types are top quality Automotive-grade Lithium Ion cells, ensuring consistent performance for this power bank.
Technical Specifications (Manufacturer Confirmed Identical)
Power Output Details
- Single USB-C Port: Up to 140W (28V⎓5A)
- Dual USB-C: 100W + 100W or 140W + 65W
- All Three Ports: USB-C1 100W + USB-C2 65W + USB-A 22.5W
- Total Maximum: 210W combined output
Charging Protocols Supported
- USB Power Delivery 3.0 (PD 3.0)
- Programmable Power Supply (PPS)
- Quick Charge 3.0 (QC 3.0)
- Super Charge Protocol (SCP)
- USB Fast Charging Specification (UFCS)
Device Compatibility
Both models charge the same devices effectively:
- Laptops: MacBook Pro 16", Dell XPS, ThinkPad X1 Carbon
- Tablets: iPad Pro, iPad Air, Surface Pro, Android tablets
- Phones: iPhone 15 series, Samsung Galaxy S24, Google Pixel 8
- Gaming: Nintendo Switch, Steam Deck, ROG Ally
- Accessories: AirPods Pro, Apple Watch, wireless earbuds
Real-World Performance Testing (TechRadar Validated)
| Device | Time to 50% | Time to 80% | Full Charge |
|---|---|---|---|
| MacBook Pro 16" M3 | 28 minutes | 52 minutes | 98 minutes |
| iPhone 15 Pro Max | 22 minutes | 45 minutes | 78 minutes |
| iPad Pro 12.9" M2 | 35 minutes | 68 minutes | 125 minutes |
| Samsung Galaxy S24 Ultra | 25 minutes | 48 minutes | 82 minutes |
| Steam Deck | 42 minutes | 75 minutes | 135 minutes |
Multi-Device Charging Test
Scenario: MacBook Pro 13" + iPhone 15 + AirPods Pro simultaneously
- Result: All devices maintained optimal charging speeds
- Power Distribution: 65W laptop + 20W phone + 5W earbuds = 90W total
Which Should You Buy? (Updated Recommendation)
CUKTECH PB250 - Choose This If:
- ✅ Value for Money: Discounted price comparing to QB826G without ZMI's brand premium
- ✅ Latest Manufacturing: Most recent production with optimized components
ZMI QB826G - Choose This If:
- ✅ TechRadar Validated: Proven performance in professional reviews
- ✅ Established Brand: Xiaomi and ZMI's proven track record and reputation
- ✅ Original Model: The foundation that inspired the CUKTECH version
- ✅ Wide Compatibility: Optimized for Xiaomi device charging protocols
Australia Stock Advantage - Both Models
Why Buy from Mostly Melbourne:
- 🇦🇺 Melbourne Warehouse: Ships within Australia, no customs delays
- ⚡ Fast Delivery: 2-5 business days nationwide
- 🛡️ Local Warranty: 12-month Australian support with local technicians
- 💯 Genuine Products: Authorized reseller with manufacturer relationships
- 🔄 Easy Returns: No international shipping hassles for exchanges
Delivery Timeline:
- Melbourne: 1-2 business days
- Sydney/Brisbane: 1-2 business days
- Adelaide/Perth: 2-3 business days
- Regional Areas: 3-5 business days
Frequently Asked Questions
Q: How can you be certain they're identical products?
A: We have official manufacturer documentation confirming identical specifications, plus our own teardown analysis.
Q: Which battery cells will I receive?
A: CUKTECH PB250 units use Samsung and EVE cells. ZMI QB826G units from our current stock also use EVE cells (we verify each batch).
Q: Does the CUKKING discount code work on QB826G?
A: No, the CUKKING code is specifically for CUKTECH branded products only.
Q: Are firmware updates the same for both models?
A: Yes, both use identical power management firmware and receive the same updates.
Q: Which model has better resale value?
A: Both maintain similar resale value, though ZMI's established brand recognition may have a slight edge in some markets.
Professional Use Cases (TechRadar Validated)
Content Creators
- Laptop + Camera + Phone: Simultaneous charging while shooting
- Drone Operations: Multiple battery charging between flights
- Live Streaming: Continuous power for extended broadcasts
Business Travelers
- Multi-Device Charging: Laptop, phone, tablet, accessories
- International Compatibility: Works worldwide with proper adapters
- Flight Safe: Meets airline regulations for carry-on power banks
Gaming Enthusiasts
- Steam Deck: 1.8 full charges for extended gaming sessions
- Nintendo Switch: 4+ full charges for long trips
- Gaming Laptop: Significant battery extension for mobile gaming
Technical Specifications Deep Dive
Internal Component Analysis
Based on manufacturer specifications and our testing:
- Power Management IC: Identical across both models
- Charging Circuitry: Same PCB layout and components
- Safety Features: Identical protection systems
- Thermal Management: Same heat dissipation design
- Port Configuration: Identical USB-C and USB-A implementations
Safety Certifications
Both models carry identical safety approvals:
- FCC (United States)
- CE (European Union)
- RCM (Australia/New Zealand)
- PSE (Japan)
- KC (South Korea)
🚚 Free Australia-Wide Shipping | 🛡️ 12 Month Warranty | ⭐ 4.8/5 Customer Rating
Conclusion
The CUKTECH PB250 and ZMI QB826G are confirmed identical products with manufacturer documentation to prove it. Your choice comes down to branding preference and specific benefits:
Want cutting-edge reliability with savings? → CUKTECH PB250 with EVE cells
Want professional-validated performance? → ZMI QB826G as reviewed by TechRadar
Both deliver industry-leading 210W output that earned TechRadar's endorsement, charge multiple devices simultaneously, and provide reliable power for any situation. With Australia stock, fast shipping, and local warranty support, you're getting the best portable charging solution available.
Ready to experience 210W charging power? Choose your preferred branding and join thousands of satisfied customers who've upgraded their mobile power game.
Last updated: August 2025 | Manufacturer documentation verified | Available at MostlyMelbourne.com
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