XR105 Xtreme Solar Power Bank
Rugged phone backup with honest multi-day solar refill guidance
The manufacturer describes a full solar refill in days, not hours; treat the panel as replenishment and charge by USB-C before leaving.
What can I charge with this?Add your devices and calculate how many charges you get.ViewClose+
What are we calculating with?See the calculation basis +
Based on a 15 Wh phone battery, assuming 75% of the power bank’s stored energy reaches the phone.
The charging standard and the cable determine the real speed.
Charging from sunlight is slow and depends on the weather.
What can the Xtorm XR105 Xtreme Solar Power Bank do for your devices?
Add the devices you want to top up away from an outlet. Battery size and requested USB-C power remain editable.
- Energy
- ≈37Wh
- Fastest USB-C
- 20W
- Combined ceiling
- 20W
Adjust delivered-energy allowance75% is a cautious starting point for battery, cable and conversion loss.+
Emergency energy—not a same-day promise.
About 5 sunny spring/summer days; about 10 sunny fall/winter days
- Panel type
- Compact integrated panel
- Published solar power
- 4.5 W maximum
- Weight
- 490 g
- Protection rating
- IPX4
What can this power bank realistically cover?
Every row checks both energy and power. It stays a planning aid: the exact device and cable must also match.
27.8 Wh planning energy of the power bank’s stored energy, under the same fixed 75% assumption the rest of this screen uses.
Specifications and pre-purchase checksEvery figure, the power sharing and the official source.ViewClose+
Capacity and speed are different decisions.
A higher mAh figure describes charge quantity only after voltage is considered. Watt-hours compare stored energy; single-port watts describe how quickly one compatible device can charge.
- Comparable energy estimate
- ≈37 Wh
- Advertised capacity
- 10,000 mAh
- Fastest USB-C port
- 20 W
- Combined maximum
- 20 W
- Connections
- USB-C PD + 2× USB-A QC
- Built-in cable
- No
- Built-in solar panel
- 4.5 W · integrated
The manufacturer describes a full solar refill in days, not hours; treat the panel as replenishment and charge by USB-C before leaving.
Model names, bundled cables, ports and output sharing can change by region or revision. Match the exact model documentation to the official specifications before relying on it.
Compare this model side by side →Manufacturer-sourced—not physically reviewed.
Your Power Setup has not bench-tested this unit. The specifications above come from the linked manufacturer page; the phone-charge figure is our labelled calculation.
- Source type
- Manufacturer specification
- Checked
Questions about this power bankAnswers and explanation, only where you need them.ViewClose+
Practical answers from the listed specifications.
How many times can the Xtorm XR105 Xtreme Solar Power Bank charge a phone?
Our planning estimate is about 1.9 full charges of a 15 Wh phone battery. It assumes an estimated comparable value of 37 Wh and that 75% of that stored energy reaches the phone.
Can the Xtorm XR105 Xtreme Solar Power Bank charge a USB-C laptop?
This is not a strong general laptop choice, because the fastest USB-C port delivers at most 20 W. Some efficient laptops accept it; check the exact laptop input.
Does one port deliver the full 20 W?
The combined maximum and the fastest individual USB-C port are both 20 W. With several devices the distribution can still change.
Can the solar panel fully charge the Xtorm XR105 Xtreme Solar Power Bank in one day?
Do not assume so. The manufacturer states: About 5 sunny spring/summer days; about 10 sunny fall/winter days. Weather, angle, shade and heat can make it even slower.
Read only the explanation relevant to you.
These short guides show the arithmetic behind the technical screen.