Solly Solar Power Bank on Kickstarter: 20,000mAh Solar Power Bank With Built-in Wall Charger, 140W USB-C, and 26-Minute Recharge
- Michael
- May 13
- 8 min read
Updated: Jun 8
Last Updated: June 4, 2026
Campaign Watch Update: Growing Backer Concerns Around Solly
As the Solly campaign enters its final days, we feel it is important to share a few observations with our readers.
Over the past week, a growing number of backers have raised concerns in the Kickstarter comments section regarding product demonstrations, third-party testing, certification status, and technical details that have not yet been fully demonstrated publicly. Several backers have also questioned the timeline given the amount of information still being requested by the community.
We have also noticed a significant number of pledge cancellations appearing throughout the comments section, along with multiple discussions that were later removed or moderated. While comment moderation is not unusual on crowdfunding platforms, the volume of cancellations and ongoing debates has attracted attention from many backers.
In addition, some readers who discovered Solly through our social media channels have contacted us to express concerns about the campaign and to share skepticism regarding certain aspects of the project.
To be clear, we are not claiming that Solly is a scam, nor do we have evidence of fraudulent activity. However, we believe these developments are relevant information for potential backers evaluating the campaign during its final days.
As always, crowdfunding involves risk. We encourage readers to review the latest campaign updates, comments, and discussions carefully before making a pledge decision.
Most power banks solve half the problem. You still need a wall charger to refill them and a travel adapter when you're abroad. The Solly solar power bank on Kickstarter is built to replace all three: 20,000mAh solid-state battery, dual 140W USB-C, and a built-in 110V/220V wall plug in a device smaller than a can of soda.
The campaign has raised $400,123 from 3,108 backers against a $3,000 goal, 130x funded with 10 days still running. Behind it is the Solly team, which describes 2.5 years of development and multiple prototype iterations with experienced manufacturing partners. The device measures 8×6×3.5cm, weighs 400g, and ships in August 2026 with a 12-month warranty.
Quick Verdict
Who Is It For?
Frequent travelers, remote workers, and content creators who currently carry a power bank, a wall charger, and a travel adapter as three separate items. Most useful for anyone who works regularly from airports, hotels, or outdoor locations where outlet access is unreliable.
Main Strengths
Built-in 110V/220V wall plug folds into the device body, eliminating the need for a separate wall charger and travel adapter across US, EU, and UK sockets.
Dual 140W USB-C (PD 3.1) delivers up to 300W combined output alongside 20W USB-A, enough to charge two MacBook Pro-class laptops simultaneously at full speed.
Rated for a 26-minute full recharge via the built-in wall plug at 140W input.
Solid-state battery rated for 3,500+ charge cycles and 80% capacity retention after years of use, with shock-proof and water-resistant construction.
74Wh capacity sits under the 100Wh airline carry-on limit, 8×6×3.5cm form factor, and a detachable 100W USB-C lanyard cable included in every bundle.
Main Limitations
Solar charging runs at approximately 800mAh per hour in good sunlight - useful for outdoor top-up but not a substitute for wall charging.
First Kickstarter campaign from the Solly team, with no previous delivery history on the platform to reference.
The 3,500-cycle and 26-minute recharge claims come from internal testing without independent third-party validation.
Is the Solly Solar Power Bank on Kickstarter Worth Backing?
Few power banks at this price combine a built-in wall plug, dual 140W USB-C, airline-safe capacity, and solid-state battery construction in a sub-400g package. At $89 for the Basic Bundle with 7 units remaining, this is the lowest early-backer pricing available during this campaign.
What Is the Solly Solar Power Bank?
The Solly is a power bank engineered around a problem most power banks ignore: you still need a wall charger to refill it and a travel adapter when you're abroad. By integrating a 110V/220V wall plug directly into the body, the Solly plugs into any compatible socket without cables, charges itself and connected devices simultaneously through pass-through charging, and works as a travel adapter across US, EU, and UK formats.
The Solly carries 20,000mAh (74Wh) in a solid-state cell rated for a 26-minute recharge via the built-in wall plug, outputting up to 300W across dual 140W USB-C (PD 3.1) and one 20W USB-A. A solar panel adds approximately 800mAh per hour in good sunlight for outdoor situations. The 17×30mm smart display tracks input/output wattage, battery percentage, temperature, and port status in real time. At 8×6×3.5cm and 400g, it supports PD 3.1, QC 4.0+, and Apple fast-charge protocols. 12-month warranty.
The Solly team describes 2.5 years of design and development across multiple prototype iterations, working with experienced manufacturing partners and verified suppliers. The Kickstarter campaign is the brand's first launch on the platform.
What Problem Does the Solly Solar Power Bank Solve?
Power banks solve one problem and create two more. You need a cable and a wall charger to refill the power bank itself. Add a trip abroad and you need a travel adapter for the charger. By the time the bag is packed, you have replaced a flat phone battery with a separate ecosystem of accessories.
The Solly addresses this at the hardware level. The 110V/220V wall plug folds directly into the device body: push it into any compatible socket and Solly charges itself at up to 140W while simultaneously passing power to connected devices. No cable required between the power bank and the wall.
The solar panel adds an off-grid layer for emergency use when no socket is available.
For frequent travelers, that consolidation removes three items from the bag: the power bank cable, the wall charger, and the travel adapter. Three fewer things to forget on the nightstand when you check out.
Solly Solar Power Bank Key Features and Specs: Wall Charger, Output, Battery, and Design
Built-In 110V/220V Wall Plug: Power Bank and Charger in One
The wall plug folds flush into the Solly body and supports both 110V (North America) and 220V (Europe and beyond). Plug it directly into a socket and it charges Solly while simultaneously outputting power to any connected devices through pass-through charging. No external charger, no cable between the bank and the wall.
Available in US, EU, and UK plug configurations, selected post-campaign via survey. For travel beyond those regions, an optional plug adapter add-on covers China, India, Japan, Mexico, Australia, Canada, South Korea, and others.
300W Total Output: Dual 140W USB-C and What That Means in Practice
Both USB-C ports support PD 3.1 at up to 140W each, sufficient for full-speed laptop charging on both simultaneously. Running both alongside the 20W USB-A delivers up to 300W combined output. Per the campaign, a full Solly charge covers one MacBook Pro from empty, five iPhone 17 Pro Max charges, two iPad Pro charges, or three drone battery cycles.
Smart PCB detection manages low-current devices like earbuds and smartwatches alongside high-power gear on the same unit without interference.
Solid-State Battery: 3,500 Cycles, Advertised 26-Minute Recharge, and Safety
The solid-state battery is rated for 3,500+ charge cycles, designed to retain 80% of its capacity after years of regular use. The 26-minute full recharge is the advertised figure based on 140W input through the built-in wall plug. These figures come from internal testing without independent third-party validation.
Per the campaign demonstration video, the cell does not burn, explode, or release smoke under a drill-through impact and continues operating afterward. Construction is shock-proof and water-resistant for outdoor use.
Solar Panel and Smart Display: Off-Grid Boost and Real-Time Monitoring
The integrated solar panel provides approximately 800mAh per hour in good sunlight, as specified on the official Solly website. At that rate, it is designed for outdoor top-up and emergency use rather than primary charging. A full recharge from the solar panel alone would take significantly longer than the advertised 26-minute wall option.
The 17×30mm smart display shows input and output wattage, battery percentage, temperature monitoring, and active port status in real time. It provides at-a-glance power management without requiring a companion app.
8×6×3.5cm and 74Wh: Portability and Airline Compliance
At 74Wh, Solly sits comfortably below the 100Wh carry-on limit accepted on most airlines. The 8×6×3.5cm body is smaller than a standard 330ml can. Weight is 400g. Every bundle includes a detachable 100W USB-C lanyard cable that doubles as a carrying strap. Three color options: Carbon Shadow, Solar Ember, and Lunar White, selected post-campaign.
Solly Solar Power Bank Price on Kickstarter
The Basic Bundle is $89 and includes the Solly and a 100W USB-C lanyard cable, saving $86 off the stated retail price. The Pro Bundle is $119 and adds a 3x charging station that recharges up to three Solly units simultaneously. Both tiers ship worldwide with August 2026 estimated delivery. The Basic Bundle has 7 units remaining at this price.
Optional add-ons include an extra warranty year ($10), additional lanyard cable ($12), magnetic USB-C cable ($14), plug adapter for 10 regions ($18), travel case for two units ($28), and standalone charging stations for three ($34) or five ($39) units.
At $89 with the wall charger and travel adapter functionality built in, the effective cost comparison is against a power bank plus the accessories it replaces rather than against power banks alone.
Should You Back the Solly Solar Power Bank on Kickstarter?
The Solly Solar Power Bank on Kickstarter doesn't just add power to your bag. It removes gear from it.
A 20,000mAh solid-state battery, dual 140W USB-C, a built-in wall plug that eliminates the travel charger, and a 74Wh airline-safe form factor in 400g at $89: that combination is not found in comparable devices at this price. The pass-through charging alone changes how you set up at a hotel: one plug in the wall, everything charging, no cable juggling.
This is the Solly team's first Kickstarter campaign. The hardware development spans 2.5 years and the manufacturing partnerships are described as established, but there is no previous delivery to reference. The right buyer for the Solly is already carrying a power bank, a wall charger, and a travel adapter separately and already knows what it costs to leave one of them behind in a hotel room. At $89 for the Basic Bundle with 7 units remaining and August 2026 delivery, that consolidation case is straightforward.
What's New With Solly Solar Power Bank? (May 2026 Update)
The Solly team has introduced a new Premium Carbon Fiber Edition, a limited version featuring a full carbon fiber body while retaining all of the original model's features, including its solid-state battery technology, upgraded solar panel, built-in wall charger, smart display, and travel-friendly design.
The creators also released a new charging performance video showing Solly simultaneously powering two MacBook Pros with approximately 140W of combined output while maintaining stable charging throughout the test.
In addition, the campaign has successfully unlocked two major stretch goals. All Solly units will now feature upgraded PD 3.2 support with up to 240W USB-C output and an increased battery capacity of 25,000mAh. The team has confirmed that additional stretch goals are already being planned, with a dedicated lanyard durability test scheduled for a future update.
FAQ about the Solly Solar Power Bank
What can a 20,000mAh solar power bank charge?
The Solly's 20,000mAh covers one MacBook Pro, up to five iPhone 17 Pro Max charges, two iPad Pro charges, or three drone cycles. The solar panel adds approximately 800mAh per hour in good sunlight for outdoor top-up. The built-in wall plug is rated to recharge it fully in 26 minutes.
Is the Solly power bank airline-safe?
Yes. Solly's 20,000mAh capacity equals 74Wh, below the 100Wh carry-on limit accepted on most airlines. It is designed to travel in hand luggage without issue on most international routes.
How does the built-in wall charger work?
The 110V/220V wall plug folds directly into the Solly body. Plug it into any compatible socket and it charges Solly at up to 140W while simultaneously passing power to connected devices. No external cable or charger needed.
What devices can the Solly charge simultaneously?
Both USB-C ports deliver up to 140W each (PD 3.1) at the same time. The USB-A port delivers 20W alongside them. Running all three ports simultaneously reaches up to 300W combined output, enough to charge two MacBook Pro-class laptops and a phone at the same time.
Is the Solly compatible with Apple and Android devices?
Yes. Solly supports PD 3.1, PD 3.0, QC 4.0+, QC 3.0, Apple 5V/2.4A, and other major fast-charging protocols, covering iPhone, iPad, Android smartphones, tablets, and most modern laptops.
About the Author
Michael Green
Chief Editor at GizmoCrowd
Michael has been tracking tech and innovation campaigns on Kickstarter and Indiegogo for over 10 years, covering wearables, health tech, smart home devices, and audio-visual equipment.
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