EcoFlow RAPID Pro 27K Power Bank (300W) review: Fast, powerful and portable MacBook battery pack

Best Prices Today: EcoFlow RAPID Pro Power Bank 27K (300W)

With a 27,650mAh battery capacity the EcoFlow RAPID Pro Power Bank (300W) is as powerful as you can get without stopping you at the airport security gates. As such it is one of the most powerful laptop power banks that you can carry with your MacBook, and it comes with a built-in USB-C cable that can power a laptop at up to 140W.

Its built-in USB-C cable can output power at up to 140W so can fast-charge even the 16-inch MacBook Pro.

Power bank tech specs

• Battery capacity: 99.54Wh
• Fastest Power Output: 140W
• Total Power Output: 300W
• Power Input: 280W
• USB ports: 2x USB-C (140W PD 3.1); 2x USB-C (65W PD 3.0)
• Dimensions: 6.5 x 2.2 x 2.3 inches (16.6 x 5.5 x 5.8cm)
• Weight: 24.7oz (699g)

There are three USB-C ports at the top of the power bank and a retractable 60cm USB-C cable nested at the bottom. Two USB-C ports can be used to power at 140W, and the other two at 65W each. Simple math tells you that—while the power bank’s maximum output is 300W, which is at the top of the laptop power bank scale—it can’t handle all of these outputs at the same time as that would add up to 410W.

It can recharge up to four devices at the same time, although—as with all charging devices—you have to stay within the 300W maximum.

With two laptops connected its generous 300W total output will allow the two 140W ports (one being the built-in cable) to fast-charge two 16-inch MacBook Pros at full pelt.

With three devices it can output at 140W, 95W and 65W—enough for three MacBooks at the same time. And using all four charging points, still allows for two MacBooks at 140W. with the remaining two USB-C ports sharing 20W.

In comparison, the similar Anker Prime 27650mAh Power Bank with a maximum total output of 250W can’t fast-charge two 16-inch MacBook Pros at the same time—one is pegged back at 100W. For more alternatives, keep reading.

An iPhone could be charged four and a half times over if using all the power bank’s battery capacity. In our tests, we fully recharged an iPhone 15 Pro in about 1 hour 40 minutes, leaving 85% power left in the power bank.

Performance

The top-end 16-inch MacBook Pro has a battery rated at around the same watt hours (99.6Wh) as this power bank (99.54Wh). That doesn’t always mean it can 100% recharge the laptop as in reality some power is lost in the transfer, but it should manage around 70-75%, and anything over 100Wh won’t be allowed on a commercial flight anyway according to TSA, CAA and EASA airline limits.

If you don’t require a power bank for in-flight recharging, but still want one for the home or office—maybe on long car or train journeys or out camping—consider a larger capacity laptop power bank such as the $169 Ugreen 48000mAh Portable Charger Power Bank.

EcoFlow claims that you can charge a 49.9Wh MacBook Air 1.3 times. We tested a 14-inch MacBook Pro (69.6Wh), and it managed nearly 1.2 (total 117%)—which leads us to think it could do more than 1.3 with the smaller Air’s battery, although we haven’t tested this.

See our list of MacBook battery capacities for more details on the whole range of Apple laptops.

While it’s especially capable in terms of battery capacity for charging laptops, the EcoFlow RAPID Pro can charge other devices, such as an iPad and iPhone, your AirPods, or your Apple Watch.

Eventually, of course, the RAPID Pro power bank will run out of juice itself.

You can recharge the power bank itself to 80% in around 40 minutes using one of the 140W USB-C ports at the same time. You can use the two 140W outputs together for a combined 280W input and so get the power bank to 80% in half an hour.

EcoFlow also claims its accessory EcoFlow RAPID Pro Desktop Charger can charge the power bank at 320W to the same 80% mark in around 20 minutes. This also features two USB-C ports (one at 100W, the other 30W) and a 22.5W USB-A port. However, at the time of our review, this is not available in either the U.S. or U.K.

There’s also an EcoFlow Rapid Pro X Magnetic Block Apple Watch Charger that can charge the power bank via the pogo pins at its base, but this appears to be only an at-purchase add-on for the RAPID Pro X version of the power bank that is more customizable, but lacks the built-in cable found on the standard model reviewed here. The X version comes uses the built-in cable on the Magnetic Block. It’s all quite confusing. As such, we recommend this plain EcoFlow RAPID Pro Power Bank, and not the fancy X version.

Laptop power bank portability

The EcoFlow RAPID Pro 27650mAh Power Bank is about the same size in height (6.5 inches) as the iPhone 17 Pro Max is long (6.43 inches). It’s around 5.5 inches wide and deep, and is easily carried in one hand. It weighs just under 25oz (0.7kg).

It’s compact but not pocketable, unless you are wearing a long coat with deep pockets, but it will fit easily in a MacBook backpack.

The design is ultra slick with chrome buttons to control the display. The cable is nicely hidden from site near the base when not in use.

Power bank smarts

There’s a color digital display on the front of the power bank (pictured above) that shows the remaining battery capacity, plus information such as its temperature (don’t let any battery get too hot or cold if you want to keep it at peak fitness), cycle count (how many times it has been charged itself: EcoFlow claims that the power bank retains over 80% of its battery capacity after 300 charge cycles) plus the port and wattage being used while charging.

If not used for an extended period, it is recommended to recharge the power bank at least once every three months.

As well as that charging data, the power bank can be controlled by the EcoFlow app, which gives real-time charging stats (remaining charging time and input and output power indicators) and can be optimized to help extend the battery life of the devices being charged as well as its own. The EcoFlow app is similar to Anker power bank app, except that the rival app includes a handy Find Device feature to activate a sound alert from the power bank when you need to locate it.

Price and alternatives

EcoFlow RAPID Pro Power Bank (27,650mAh, 300W, Built-in Cable) is priced at $219.99 / £169.99 / CA$249.99 / €169,99. At the time of writing there were direct discounts. Check our real-time price comparison at the top and bottom of this article for the best prices in your region, and take a look at Amazon or Amazon UK.

EcoFlow also sells a 20000mAh model for $179.99 / £129.99 that offers a smaller (14.5cm height) and lower 230W max output battery. It’s not too much smaller and has the same number of USB ports, including the built-in cable. It’s 5oz (135g) lighter than the 27K model.

With 100W USB-C it might suit MacBook Air or 14-inch MacBook Pro owners. For the 16-inch MacBook Pro, the 140W (PD 3.1) speedy 27,650mAh power bank makes more sense.

Alternative high capacity (25K and over) laptop power banks can be found in our roundup of the best power banks for MacBook. These include the Anker Prime 27K (250W) Power Bank and a new model from the same company, the Anker Prime 26K (300W) Power Bank that currently is in testing for review. Another 25K Anker Power Bank (165W) has two built-in cables but a slightly lower capacity and maximum power output.

There’s the adventurous Sandberg Survivor Power Bank that equals the 27K EcoFlow RAPID Pro but has a lesser 65W USB-C port. We’d take that model to a desert but the EcoFlow to a beach hotel.

The confusingly named Cuktech 20 Power Bank 25000mAh (210W) is much cheaper (MSRP: $123), but again a lower capacity and total output, although it too can reach 140W from one of its ports.

Choosing between all of these power banks as the portable charging companion for your MacBook could be a complicated game of price and power over convenience and intelligent features.

What makes the EcoFlow RAPID Pro stand out are its top 27K capacity, 140W fast-charging, 300W total output and built-in cable. None of the others can match all four of these attributes.

Should I buy the EcoFlow RAPID Pro Power Bank (27,650mAh, 300W)?

The good-looking EcoFlow RAPID Pro Power Bank is a high-capacity laptop charging power bank that boasts not just a lot of juice and fast-charging speeds, but a huge simultaneous output and a handy built-in USB-C cable.

The 27,650mAh model is particularly suited to owners of the 16-inch MacBook Pro that can take advantage of its 140W charging and full battery capacity, but all owners of hungry MacBooks will delight in its recharge capacity and speed.