Shargeek 300: 300W of Backpack-Stretching Power
There is something inherently absurd about carrying 300W of potential energy in a backpack. Five years ago, this level of output was reserved for "portable" power stations that required a dedicated shoulder strap. Today, with the launch of the Shargeek 300, Sharge is betting that the rise of power-hungry AI workstations and mobile gaming rigs justifies carrying an 850g silicon-and-lithium brick in your daily bag.
Chasing the Specs Crown: 300W and the Cooling Cost
Sharge isn't just iterating here; they are clearly chasing the specs crown. The Shargeek 300 pushes a massive 300W combined output across its port array. The heavy lifting is done by two USB-C ports, both supporting the PD 3.1 standard for 140W individual output. To round it out, you get a 100W USB-A port and a legacy-friendly DC output.
For professionals, this means a MacBook Pro can hit a 50% charge in about 30 minutes. But raw speed creates heat, and Sharge’s solution is an internal active cooling fan. While the digital LCD provides great data on voltage and runtime, it won't tell you that the fan whir is noticeable in a quiet library. It’s a necessary trade-off: you either accept the fan noise or watch your charging speeds throttle into oblivion.
The Modular Catch: Flight-Safe (Until It’s Not)
The headline innovation is the modular expansion system. Using a series of reinforced magnetic pogo-pin connectors on the base, the Shargeek 300 can "stack" with additional battery modules, effectively jumping from 20,000mAh to a massive 40,000mAh.
However, travelers need to read the fine print. The base unit sits comfortably under the 100Wh TSA threshold (roughly 72-74Wh), making it perfectly legal for international flights. The moment you snap on that expansion module, you’ve doubled your capacity to ~144Wh—effectively turning your "flight-safe" charger into a "grounded" power station. If you're a digital nomad, you'll be leaving the expansion pack in your checked luggage or at home.
Ruggedness and Reality
The IP65 rating is a welcome addition, but don't expect it to survive a dunk in a lake. The rating is achieved through tight-fitting rubber gaskets and flaps that cover the ports. It’ll survive a sudden downpour at a campsite, provided you actually remembered to seal the flaps after unplugging your gear. The all-metal chassis is rugged, certainly, but it also acts as a giant heat sink that gets remarkably toastly during a full 140W recharge cycle.
Comparison: Shargeek 300 vs. Anker 737
| Feature | Shargeek 300 | Anker 737 (GaNPrime) |
|---|---|---|
| Total Max Output | 300W | 140W |
| Weight | 850g | ~630g |
| Weather Resistance | IP65 (with flaps) | None |
| Expansion | Modular Stacking | Fixed Capacity |
| Port Logic | 2x USB-C (140W ea) | 1x USB-C (140W) |
The Verdict: Desktop Power in a Bag
Starting at $199, the Shargeek 300 is priced for the "prosumer" who values time over weight. It is 15% lighter than most comparable 300W units, yet at 850g, you’ll definitely feel it in your bag by the end of the day.
The value proposition here isn't just "more battery"—it’s the ability to run a high-drain creative workflow from a coffee shop without hunting for an AC outlet. If you’re just charging an iPhone and an iPad, this is overkill. But if you’re rendering 8K video or running local LLMs on a laptop that usually dies in two hours, the $199 entry price is a fair tax for true mobile independence. Just remember to detach the extra battery before you head to the airport.