SolidSafe™ Duo
A custom-made 5K cell matches the iPhone Duo form factor without the overhang.
- Built for iPhone Duo
- Semi-solid-state
- 360° stand
$79.99Shop Duo
The SolidSafe™ Collection
Slim.Safe.Seamless.
Semi-solid-state powermade for the devicesyou carry.
Pick your carry
Find your SolidSafe™.
From form-fit 5K power to a full 10K reserve, every model is built around the way you actually carry your phone.
Same semi-solid-state approach. Different sizes, features, and ways to move.
SolidSafe™ Air 5K
6.8mm titanium power you never debate bringing.
- 6.8mm thin
- Titanium body
- Qi2 15W
$59.99Shop Air 5K
SolidSafe™ 5K
Semi-solid-state power with a screen that shows everything and a cable that is always with you.
- Semi-solid-state
- Qi2 15W
- Full-color LCD
$59.99Shop 5K
SolidSafe™ 10K
Semi-solid-state power for charging all day or across multiple devices.
- Semi-solid-state
- Dual USB-C
- Qi2 15W
$79.99Shop 10K
At a glance
Compare the collection.
Start with how you carry. Go Air for minimum bulk, Duo for an exact phone fit, or SolidSafe™ 5K and 10K for the display and built-in cable.
Swipe to compare models →
Product
Model
DuoForm-fit
Air 5KMinimum bulk
SolidSafe™ 5KDaily utility
SolidSafe™ 10KMaximum range
Best for
iPhone Duo
Slim everyday carry
Everyday visibility
Long days + more devices
Capacity
5,000mAh
5,000mAh
5,000mAh
10,000mAh
Thickness
11mm
6.8mm
11.7mm
18.9mm
Charging
15W magnetic + 20W USB-C
Qi2 15W + 20W USB-C
Qi2 15W + 20W USB-C
Qi2 15W + 30W USB-C total
Status
Full-color TFT
4 battery LEDs + status light
Full-color LCD
Full-color LCD
Cable
Built-in USB-C
Included USB-C
Built-in USB-C
Built-in USB-C
Stand
360° rotating
No
No
No
- Best for
- iPhone Duo
- Capacity
- 5,000mAh
- Thickness
- 11mm
- Charging
- 15W magnetic + 20W USB-C
- Status
- Full-color TFT
- Cable
- Built-in USB-C
- Stand
- 360° rotating
- Best for
- Slim everyday carry
- Capacity
- 5,000mAh
- Thickness
- 6.8mm
- Charging
- Qi2 15W + 20W USB-C
- Status
- 4 battery LEDs + status light
- Cable
- Included USB-C
- Stand
- No
- Best for
- Everyday visibility
- Capacity
- 5,000mAh
- Thickness
- 11.7mm
- Charging
- Qi2 15W + 20W USB-C
- Status
- Full-color LCD
- Cable
- Built-in USB-C
- Stand
- No
- Best for
- Long days + more devices
- Capacity
- 10,000mAh
- Thickness
- 18.9mm
- Charging
- Qi2 15W + 30W USB-C total
- Status
- Full-color LCD
- Cable
- Built-in USB-C
- Stand
- No
Questions, answered
SolidSafe™ FAQ.
The useful details, without the battery jargon.
What does semi-solid-state mean?
SolidSafe™ batteries use significantly less liquid electrolyte than conventional lithium-ion batteries. That construction helps reduce fire risk while keeping the power bank practical for everyday use.
Which SolidSafe™ is the thinnest?
SolidSafe™ Air 5K is the slimmest model in the current collection at 6.8mm. It is the best fit when minimum bulk matters most.
Should I choose 5K or 10K?
Choose 5K for a lighter everyday top-up. Choose 10K when you want more reserve for long days, travel, or charging multiple devices.
Which models include a built-in cable?
SolidSafe™ Duo, SolidSafe™ 5K, and SolidSafe™ 10K include a built-in USB-C lanyard cable. SolidSafe™ Air 5K includes a separate USB-C cable.
Which models have a screen?
SolidSafe™ Duo uses a full-color TFT display. SolidSafe™ 5K and 10K use a full-color LCD. SolidSafe™ Air 5K keeps things minimal with battery LEDs and a separate status light.
Can I bring a SolidSafe™ power bank on a flight?
Every current SolidSafe™ model is under 100Wh. Power banks must travel in carry-on baggage, not checked baggage. Airline and local rules can vary, so confirm before you fly.
Will it work with my phone?
Wireless attachment and charging depend on a compatible phone or magnetic case. USB-C charging works with a broad range of phones and other personal devices.