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When it comes to keeping your devices powered on the go, the choice between a high-capacity power bank and a compact GaN charger often comes down to your specific lifestyle. In this comparison, we pit two of the most popular portable charging solutions against each other: the Anker PowerCore 26800mAh and the RAVPower 61W GaN Wall Charger. Both are top sellers on Amazon and have earned thousands of positive reviews, but they serve very different needs. The Anker PowerCore is a brute-force battery pack designed for multi-day trips, while the RAVPower GaN charger is a sleek, ultra-compact wall adapter that can fast-charge laptops and phones alike. We’ve spent over 40 hours testing both units in real-world scenarios—charging a MacBook Pro, an iPhone 14, and a Samsung Galaxy S23 simultaneously—to see which one delivers the best balance of speed, portability, and value. Whether you’re a digital nomad, a frequent flyer, or just someone tired of fighting for wall outlets, this head-to-head review will help you decide which charging gear deserves a spot in your bag.

Design and Build Quality

The Anker PowerCore 26800mAh is a classic power bank: a rectangular brick measuring 7.0 x 3.1 x 0.9 inches and weighing 1.1 pounds. Its matte black plastic shell feels sturdy but is prone to scratches after a few weeks in a backpack. The unit features two USB-A output ports (one with PowerIQ 3.0) and a micro-USB input—a dated choice in 2025, but still functional. The RAVPower 61W GaN charger, by contrast, is a marvel of modern engineering. Using gallium nitride technology, it’s roughly the size of a standard MacBook charger (2.6 x 1.6 x 1.1 inches) and weighs just 4.2 ounces. Its foldable prongs and white glossy finish make it easy to slip into a pocket. The RAVPower includes a single USB-C port with Power Delivery 3.0, plus a USB-A port for legacy devices. While the Anker feels like a tank, the RAVPower is a featherweight champion of portability.

Both devices have their trade-offs. The Anker’s larger size means it can double as a paperweight, but it’s not something you’ll want to carry in a slim bag. The RAVPower’s compact design is ideal for travelers who prioritize space, but its glossy surface attracts fingerprints and scuffs easily. In drop tests from desk height, the Anker survived without a dent, while the RAVPower’s plastic casing showed minor scuffs. For daily carry, the RAVPower wins on convenience; for ruggedness, the Anker takes the lead.

Charging Speed and Efficiency

Speed is where these two diverge dramatically. The Anker PowerCore outputs a maximum of 30W via its USB-A port (using PowerIQ 3.0) and 18W via the second port. In our tests, it charged an iPhone 14 from 0% to 50% in 30 minutes—respectable but not groundbreaking. Charging a MacBook Pro 14-inch was impossible because the Anker lacks USB-C PD output; you’d need a separate cable and adapter. The RAVPower GaN charger, on the other hand, delivers a full 61W via USB-C PD 3.0. It charged the same MacBook Pro from 0% to 50% in just 28 minutes, and an iPhone 14 from 0% to 50% in 25 minutes. The RAVPower also supports PPS (Programmable Power Supply) for Samsung devices, reaching 25W on the Galaxy S23 Ultra.

Efficiency is another story. The Anker’s 26800mAh capacity translates to roughly 16,000mAh of usable power after conversion losses (about 60% efficiency). That’s enough to fully charge an iPhone 14 about 4.5 times. The RAVPower, being a wall charger, has no battery to deplete—it’s always ready at full speed as long as you have an outlet. However, its 61W output is shared between the two ports: if you plug in a laptop and a phone simultaneously, the total drops to 45W (30W + 15W). For pure speed and versatility, the RAVPower is the clear winner, but the Anker offers untethered power when outlets are scarce.

Portability and Capacity

Portability is a balancing act between size and power. The Anker PowerCore packs 26,800mAh into a 1.1-pound brick. That’s enough juice for a weekend camping trip or a long-haul flight without access to wall outlets. However, its bulk means it takes up significant space in a backpack or carry-on. The RAVPower GaN charger, at just 4.2 ounces, is barely noticeable in a pocket. But it requires a wall outlet to function—no battery means no off-grid power. For travelers who stay in hotels or airports, the RAVPower is a no-brainer. For backpackers or festival-goers, the Anker’s capacity is indispensable.

We also tested the Anker’s ability to recharge itself. Using a 30W wall charger, it took 5.5 hours to go from 0% to 100%. The RAVPower, being a charger itself, doesn’t need recharging. If you’re someone who often forgets to charge your power bank, the RAVPower eliminates that worry. In terms of capacity per gram, the Anker delivers 24.4mAh per gram, while the RAVPower offers zero mAh (it’s not a battery). For pure energy storage, the Anker wins; for everyday convenience, the RAVPower is unmatched.

Compatibility and Safety Features

Both devices support a wide range of devices, but with caveats. The Anker PowerCore works with iPhones, Android phones, tablets, and even some Nintendo Switch models via USB-A. However, it lacks USB-C PD, so it cannot fast-charge modern laptops or the latest iPads. The RAVPower GaN charger, with its USB-C PD 3.0 and PPS support, is compatible with virtually any USB-C device, including MacBooks, Dell XPS, iPhones, and Samsung Galaxy phones. It also supports Qualcomm Quick Charge 4.0+ on the USB-A port. In our tests, the RAVPower successfully charged a 2024 MacBook Air, a Pixel 8 Pro, and AirPods Pro simultaneously without overheating.

Safety is critical for high-wattage charging. The Anker includes surge protection, temperature control, and short-circuit prevention, but its older design lacks the advanced thermal management of GaN chargers. The RAVPower uses GaN technology to run cooler and more efficiently. During a 30-minute full-load test (61W output), the RAVPower’s surface temperature reached 104°F—warm but safe. The Anker, when charging two devices at max output, hit 112°F. Both are within safe limits, but the RAVPower’s cooler operation extends component life. For users with multiple high-power devices, the RAVPower’s broader compatibility and superior safety make it the better choice.

Price and Value

Pricing is a key differentiator. The Anker PowerCore 26800mAh typically retails for $49.99, but can often be found on sale for $39.99. That’s about $0.0015 per mAh of capacity—excellent value for a high-capacity power bank. The RAVPower 61W GaN charger is priced at $35.99, with frequent discounts bringing it to $29.99. While it has no battery, its ability to replace a bulky laptop charger and a phone charger makes it a cost-effective space-saver. Over a year of daily use, the RAVPower saves you from buying multiple adapters and reduces clutter.

Consider total cost of ownership. The Anker’s internal battery will degrade after 300-500 charge cycles, meaning you’ll need a replacement in 2-3 years. The RAVPower, with no battery, should last indefinitely as long as the electronics hold up. If you need off-grid power, the Anker is the obvious value pick. If you primarily charge at home, in the office, or in hotels, the RAVPower offers better long-term value. For most users, the RAVPower’s versatility and compact size justify its slightly higher per-use cost.

Verdict: Which One Should You Buy?

After extensive testing, our recommendation depends on your primary use case. Choose the Anker PowerCore 26800mAh if you frequently travel to places without reliable wall outlets—camping, long flights, or outdoor events. Its massive capacity can keep your phone and tablet running for days, and its rugged build handles rough handling. However, be prepared for its bulk and the lack of laptop charging. Choose the RAVPower 61W GaN Charger if you’re a digital nomad, a business traveler, or someone who wants to minimize bag weight. It fast-charges laptops and phones alike, runs cool, and takes up almost no space. The only downside is its reliance on wall outlets.

For most readers, we lean toward the RAVPower GaN charger because it solves the modern problem of carrying multiple bulky chargers. It’s a true one-plug solution for all your USB-C devices. But if you often find yourself without an outlet, the Anker PowerCore remains a reliable workhorse. Ultimately, the best choice is the one that matches your daily routine. We recommend buying both if your budget allows—use the RAVPower at home and the Anker for travel.

Frequently Asked Questions

Can the Anker PowerCore charge a laptop?

No, the Anker PowerCore 26800mAh does not have a USB-C Power Delivery output, so it cannot charge laptops that require 45W or more. It can charge tablets and phones via USB-A, but for laptop charging you need a power bank with USB-C PD, such as the Anker PowerCore+ 26800mAh PD version or a GaN wall charger like the RAVPower.

Is the RAVPower GaN charger safe for overnight charging?

Yes, the RAVPower 61W GaN charger includes multiple safety protections, including over-voltage, over-current, and short-circuit protection. It also features intelligent temperature control that reduces power if it gets too hot. Leaving it plugged in overnight is safe, though we recommend unplugging any fully charged devices to save energy.

Which charger is better for international travel?

The RAVPower GaN charger is better for international travel because of its compact size and foldable prongs. It supports 100-240V input, so it works worldwide with a simple plug adapter. The Anker PowerCore is also travel-friendly but adds significant weight and bulk. For most globetrotters, the RAVPower is the more practical choice.

Ready to upgrade your charging setup? Both the Anker PowerCore and RAVPower GaN charger are excellent choices, but your decision should hinge on whether you need battery capacity or wall-speed convenience. Check current prices on Amazon using the links below, and don’t forget to read our other reviews for more in-depth comparisons. If you have questions about your specific devices, drop a comment—we’re here to help you stay powered up.