Mega power bank for all you and your family's devices including your Mac

The Ultimate MacBook Powerhouse: Why the UGREEN 300W 48000mAh Power Bank Is a Game-Changer

Quick Answer: The UGREEN 300W 48000mAh Power Bank (Model 25286) is a true high-output portable power station built specifically for power-hungry laptops like the 16-inch MacBook Pro. Featuring PD 3.1 140W single-port output, 300W total capacity across 5 ports, long-lasting LiFePO4 battery cells, and a smart real-time digital display, it eliminates battery anxiety whether you are editing 4K video on location, working remotely during power cuts, or running a full portable studio setup.

Modern Apple Silicon MacBooks offer incredible efficiency, but if you perform heavy computational tasks—video rendering, code compilation, audio production, or multi-monitor remote setups—your battery can still drain quickly.

Standard 10,000mAh or 20,000mAh pocket power banks aren't built for modern high-performance laptops. Most cap out at 30W to 65W output, which can cause heavy battery drain even while plugged in.

The UGREEN 300W 48000mAh Power Bank (PB770 / 25286) fixes this issue completely. It functions less like a simple battery pack and more like a high-output portable power station tailored for serious creators and professionals.

1. True 140W PD 3.1 Output: Fast Charge Your MacBook Pro at Full Speed

To charge a flagship 16-inch MacBook Pro at maximum speed, a charger must deliver 140W via USB-C Power Delivery 3.1.

The primary USB-C port (C1) on the UGREEN 25286 outputs up to 140W continuous power, allowing you to charge a 16-inch MacBook Pro to 50% in roughly 30 minutes—matching the speed of Apple’s official wall adapter.

Instead of merely slowing down battery drain, this power bank recharges your laptop at top speed while you handle demanding workloads like video editing, 3D rendering, or heavy compiling.

2. Massive 300W Total Output Across 5 Ports

If your workspace includes more than just your Mac, this power bank can power your entire desk setup at once without throttling.

• Port Layout: 3x USB-C ports + 2x USB-A ports (5 total ports).

• Multi-Laptop Capability: USB-C1 delivers 140W while USB-C2 and USB-C3 can simultaneously output up to 100W each.

• Simultaneous Workstation Power: Run a MacBook Pro (140W), a second laptop or iPad Pro (100W), an iPhone/Android device, and accessories simultaneously without overloading the unit.

3. Automotive-Grade LiFePO4 Battery Cells

Unlike consumer power banks that rely on standard Lithium-ion batteries (which degrade after 300–500 cycles), UGREEN utilizes Lithium Iron Phosphate (LiFePO4) battery tech:

• 3,000+ Charge Cycles: Maintains over 80% capacity even after 3,000 full cycles—lasting 6x longer than standard power banks.

• Enhanced Thermal & Chemical Safety: Highly resistant to thermal runaway and degradation, making it far safer during high-wattage charging sessions.

4. Smart Digital Display & 1.5-Hour Recharging

• Real-Time Telemetry: The crisp LED screen displays exact remaining battery percentage, real-time input wattage, and live output wattage per port so you know your power draw.

• 140W Fast Self-Recharging: Thanks to bidirectional PD 3.1 technology, the power bank itself recharges fully from 0 to 100% in approx. 1.5 hours when paired with a 140W wall charger.

• Built-in LED Light: Features high, low, and SOS lighting modes for power outages, field work, or outdoor shoots.

The Verdict: The Ultimate Mobile Power Solution for Mac

If you need true off-grid freedom without worrying about running out of juice during heavy video edits, coding sessions, or travel days, the UGREEN 300W 48000mAh Power Bank is a serious upgrade. It provides full wall-outlet performance for your MacBook in a portable form factor.

(Note: At 153.6Wh, this power bank exceeds the standard TSA 100Wh airline carry-on limit without prior airline approval, making it best suited for road trips, remote outdoor work, camping, home emergency backup, and local field work.)