Better Mobile Xperience (BMX) claims its new SolidSafe 20K Laptop Power Bank is the world’s first 100W semi-solid-state laptop power bank. The accessory can charge a 14-inch MacBook Pro at full speed while using battery technology designed to reduce fire risk compared to conventional lithium-ion cells.
The new power bank is part of a three-product SolidSafe lineup that also includes a smaller 65W laptop charger and a compact 30W mobile power bank. All three are available now.
BMX SolidSafe 20K power bank packs 100W
The BMX SolidSafe 20K packs a 20,000mAh battery rated at 74Wh. Its main USB-C port delivers up to 100W, enough to charge a 14-inch MacBook Pro at full speed. BMX says the battery can also provide a full charge for a 13-inch MacBook Air or about 2.5 charges for an iPhone 17.
One of the accessory’s main selling points is its semi-solid-state battery technology. Conventional lithium-ion batteries use a flammable liquid electrolyte that can contribute to thermal runaway if a cell develops a short circuit or overheats. BMX’s SolidSafe cells use significantly less liquid electrolyte, which the company says reduces the fire risk.
Plus, its 74Wh capacity falls below the 100Wh limit for spare batteries generally permitted in carry-on luggage.
Despite its substantial capacity, the SolidSafe 20K measures about 0.7 inches (18mm) thick and weighs 0.84 pounds ( 380 grams).
It offers three charging ports, allowing users to power a laptop, phone and earbuds simultaneously. A color LCD displays the remaining battery percentage and the wattage being delivered through each port.
BMX includes a 1-meter braided USB-C cable rated for up to 140W.
Smaller SolidSafe power banks offer 65W and 30W charging
Photo: BMX
The new lineup also includes two less powerful options.
The BMX SolidSafe 15K Laptop Power Bank has a 15,000mAh (55.5Wh) battery and delivers up to 65W through USB-C. That’s enough to charge a MacBook Air, although BMX says it provides about 74% of a full charge for the 13-inch model. It can also recharge an iPhone 17 twice.
The accessory can charge three devices simultaneously and includes a USB-C lanyard cable.
For smartphone users, the BMX SolidSafe 10K Mobile Power Bank offers a 10,000mAh (37Wh) battery and 30W USB-C fast charging. BMX says it can take an iPhone 17 from empty to 50% battery in 29 minutes and provides approximately 1.5 full charges.
It also includes a built-in USB-C lanyard cable and a USB-A port for older charging cables and accessories.
BMX’s new power banks are available now
All three BMX SolidSafe power banks are available now through the company’s website and Amazon.
The SolidSafe 20K Laptop Power Bank costs $109.99, the SolidSafe 15K Laptop Power Bank is $79.99 and the SolidSafe 10K Mobile Power Bank sells for $59.99.
The world’s first 100W semi-solid-state laptop power bank. About three phone charges, or a full charge for a 13.6-inch M3 MacBook Air, in an 18mm body.
Ed Hardy has been writing full-time about tech for 26 years, and using it for much longer than that. His intro to Apple was a Macintosh SE/30 (which he still has), but now he uses a 13-inch iPad Pro as his primary computer.
That’s because he’s a “tablet first” type of guy. Rather than use a Macbook, he connects a keyboard case to the iPad. And instead of a desktop Mac, he connects his tablet to a 27-inch display and full-size keyboard. (So don’t try to tell him that everyone has to use a Mac to be productive.)
Before coming to Cult of Mac, Ed wrote for NotebookReview, TabletPCReview and Brighthand, as well as other sites.
