The ROG Ally X demands serious power to maintain its gaming performance on the go, requiring a portable charger that can deliver at least 65W through USB-C Power Delivery to charge while playing, though 100W is ideal for matching the device’s included charger.
With its upgraded 80Wh battery (double the original Ally’s 40Wh), the Ally X offers better battery life but also needs higher-capacity power banks to provide meaningful charging cycles. The key is finding a charger that supports USB-C PD 3.0 or newer standards and can sustain high wattage output without throttling due to heat.
When selecting a portable charger for your ROG Ally X, you’ll want to prioritize models with at least 20,000mAh capacity – though 25,000mAh is becoming the sweet spot for providing multiple full charges while staying within airline regulations (most allow up to 27,000mAh or 100Wh).
The Ally X’s power-hungry AMD Z1 Extreme processor can draw significant power during intensive gaming, so having a charger that can deliver consistent 100W output ensures you’re not just slowing battery drain but actually charging while playing.
Best Portable Chargers for ROG Ally X: Quick Comparison
| Portable Charger | Capacity | Max Output (W) | Ports | PD Support | Price (Amazon) |
| Baseus Portable Charger | 20,000mAh | 100W | 2×USB-C, 2×USB-A | USB-C PD 100W | $99 – Buy Now |
| INIU Power Bank | 25,000mAh | 100W | 1×USB-C in/out, 2×USB-A | USB-C PD 100W | $59 – Buy Now |
| Anker Power Bank | 25,000mAh | 300W total (100W per port) | 3×USB-C | USB-C PD 100W | $120 – Buy Now |
| UGREEN Power Bank | 25,000mAh | 145W | 2×USB-C, 1×USB-A | USB-C PD 145W | $99 – Buy Now |
| Anker 737 | 24,000mAh | 140W | 2×USB-C, 1×USB-A | USB-C PD 140W | $109 – Buy Now |
Best Portable Chargers for ROG Ally X: Top Picks
Baseus Blade
Quick Highlights
- 100W maximum output matching ROG Ally X charger
- Ultra-slim blade design for portability
- 20,000mAh capacity
- Four-port configuration with dual USB-C
- Price – $99 – Buy Now
The Baseus Blade stands out with its remarkably thin profile, measuring just 0.7 inches thick despite packing 20,000mAh and 100W output capability. This slim design makes it easier to slip into laptop bags or even larger pockets, addressing one of the main complaints about gaming power banks – their bulk. The 100W USB-C PD output perfectly matches the ROG Ally X’s charging requirements, ensuring you maintain full charging speed whether you’re in turbo mode or running demanding AAA titles.
With 20,000mAh capacity, you’ll get roughly one full charge of the Ally X’s 80Wh battery, accounting for conversion losses. The four-port setup with two USB-C and two USB-A ports provides excellent versatility, though the 100W is shared when using multiple ports simultaneously. The aluminum construction aids in heat dissipation during high-wattage charging, which is crucial for maintaining consistent power delivery during extended gaming sessions.
Pros
- Exceptionally thin design for easy carrying
- Reliable 100W output for full-speed charging
- Premium aluminum construction for durability
Cons
- Lower capacity compared to 25,000mAh options
- No display for battery level monitoring
- Slightly warm during maximum output
INIU Power Bank
Quick Highlights
- 25,000mAh high capacity
- 100W PD fast charging output
- Three-port design
- Competitive pricing
- Price – $59 – Buy Now
INIU delivers impressive value with their 25,000mAh power bank that doesn’t compromise on the crucial 100W output needed for optimal ROG Ally X charging. The extra 5,000mAh over base models translates to roughly 1.25 full charges of the Ally X, giving you significantly more gaming time between wall outlets. The 100W USB-C PD 3.0 support ensures your device charges at maximum speed, critical for maintaining performance during resource-intensive games.
The three-output design keeps things simple and functional, with smart power allocation that prioritizes the highest-draw device when multiple gadgets are connected. While it lacks premium features like displays or built-in cables, INIU focuses on core performance at an accessible price point. The textured exterior provides good grip, and the included USB-C to USB-C cable is rated for 100W charging, saving you from buying a separate high-wattage cable.
Pros
- Excellent capacity-to-price ratio
- Full 100W charging speed maintained
- Includes 100W-rated cable
Cons
- Basic design lacks premium features
- No battery indicator display
- Bulkier than 20,000mAh alternatives
Anker 25000mAh Laptop Power Bank
Quick Highlights
- Built-in retractable cables
- Triple 100W USB-C ports
- 25,000mAh capacity
- Flight-approved certification
- Price – $120 – Buy Now
Anker’s innovative approach includes both built-in and retractable cables, solving the eternal problem of forgotten or lost charging cables. The retractable mechanism feels solid and locks securely when extended, while the built-in cable eliminates one more thing to pack. With three USB-C ports all capable of 100W output (when used individually), this power bank can fast-charge the ROG Ally X plus additional USB-C devices when needed.
The 25,000mAh capacity provides ample power for extended gaming sessions, delivering approximately 1.25 full charges to the Ally X. Anker’s PowerIQ 3.0 technology intelligently manages power distribution when multiple devices are connected, though total output is capped at 100W when using multiple ports. The flight-approved certification is clearly marked, potentially avoiding airport security hassles, and the build quality reflects Anker’s reputation for reliability.
Pros
- Retractable cable design is genuinely useful
- Three full-featured USB-C ports
- Proven Anker reliability and safety features
Cons
- Premium pricing reflects added features
- Retractable cable mechanism adds thickness
- No display for precise battery monitoring
UGREEN Power Bank
Quick Highlights
- Industry-leading 145W output
- Digital display for battery monitoring
- 25,000mAh high capacity
- Nexode fast charging technology
- Price – $99 – Buy Now
The UGREEN Nexode leads the pack with its massive 145W output capability, providing headroom beyond what the ROG Ally X needs, which means consistent 100W delivery even under stress. This extra power capacity becomes valuable when charging multiple devices, as you can maintain high wattage to your Ally X while simultaneously fast-charging a phone or tablet. The digital display shows precise battery percentage and real-time power output, eliminating guesswork about remaining capacity.
At 25,000mAh, you’re getting the sweet spot capacity that balances portability with extended runtime. The three-port configuration uses the latest USB-C PD 3.1 standard, supporting the Extended Power Range (EPR) that enables the 145W output. During testing conditions, the UGREEN maintains its rated output without significant throttling, thanks to efficient heat management and high-quality cells that handle high-discharge rates well.
Pros
- Highest power output provides future-proofing
- Digital display with detailed information
- Excellent thermal management
Cons
- Heavier than lower-wattage alternatives
- Overkill wattage for single-device use
- Higher price point
Anker 737
Quick Highlights
- Smart OLED display with detailed metrics
- 140W maximum output
- 24,000mAh capacity
- Premium build quality
The Anker 737 represents the premium tier of portable charging with its smart OLED display that shows not just battery percentage but also real-time wattage, estimated recharge time, and even battery health status. The 140W output through USB-C PD 3.1 provides more than enough power for the ROG Ally X while leaving headroom for multi-device charging scenarios. At 24,000mAh, it sits just below the 25,000mAh options but still delivers over one full charge to the Ally X.
The three-port design includes two USB-C and one USB-A, with intelligent power distribution managed by Anker’s PowerIQ 4.0 technology. The display isn’t just a gimmick – it provides genuinely useful information like input/output wattage and temperature monitoring, helping you optimize charging efficiency. The columnar design might not be as pocket-friendly as slimmer options, but it’s surprisingly comfortable to hold and the premium materials justify the higher price point.
Pros
- Best-in-class smart display functionality
- Robust 140W output with intelligent management
- Premium build with extensive safety features
Cons
- Most expensive option in this lineup
- Columnar shape less portable than flat designs
- Display adds to battery consumption
Conclusion
For ROG Ally X owners, the UGREEN 145W offers the best overall package with its class-leading power output and informative display at a reasonable price. Budget-conscious gamers should consider the INIU 25,000mAh for solid 100W performance without the premium markup. The Anker 737 justifies its higher cost for those wanting the smart display and premium features, while the Baseus Blade is ideal if portability is your priority. All five chargers will keep your ROG Ally X powered during gaming marathons – just match your choice to your specific needs and budget.
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