The second panel stays protected inside the base while you carry the backpack.
Current product imagery: Solar backpack beside a laptop user on an outdoor terrace
Explore product views, the hidden second panel, carry details and outdoor use.
Home / Solar Backpacks / 30W Solar Backpack
LINKSOLAR · DUAL-PANEL SOLAR CARRY
30W Solar
Backpack
Carry more sun. Deploy it when you stop.
A 30-liter solar charging backpack with a fixed 15W front panel and a hidden pull-out 15W panel for up to 30W rated solar power when fully deployed.
15W Closed30W DeployedUSB-A + USB-C30L Capacity
$179.00 USD $219.00 USD
ColorDark GrayModelPT-B-30W
In stock150 available in Dark Gray
Ships from Dongguan, China. Shipping charges and delivery options are shown at checkout.
No built-in battery. Power bank not included. Direct-charge a compatible phone in steady sunlight, or connect your own compatible power bank while moving.
Secure checkoutProtected checkout through Shopify
Shipping & returnsShipping policy · Return policy
1-year warrantyOne-year limited product warranty
01 · CARRY FIRST · DEPLOY WHEN YOU STOP
A 30-liter backpack
with a second panel
that deploys when you stop.Carry 30L.
Deploy up to 30W.
For everyday travel, the second 15W panel stays protected behind the bottom zipper. Carry the closed backpack with its fixed 15W front panel, then open the extra collection area when you stop.15W fixed panel. Stop and fully unfold for up to 30W in suitable sunlight.
30L organized carry15W while closed1.5kg specification weight
02 · WHAT 30W MEANS
15W closed.
30W fully deployed.
The fixed front panel is rated at 15W. Open the bottom zipper and pull out the hidden second 15W panel when you stop to expose both panels and increase the active solar collection area in clear sunlight.
Expose both panels to unobstructed sunlight for a combined 30W rated maximum.
03 · BC BACK-CONTACT SOLAR CELLS
BC cells, built to keep
the front surface clear.BC cells.
A clear front surface.
The PT-B-30W uses BC (back-contact) solar cells. The electrical contacts sit on the rear of each cell instead of across its light-facing surface.
- Rear-side contactsPlace the electrical contacts away from the light-facing surface.
- No front metal fingersReduces the front-grid shading shown in the comparison.
- Better use of compact panel areaLeaves more of the cell surface exposed to incoming light.
04 · USB OUTPUT
Solar input inside.
USB power for your devices.
The internal solar controller is connected to the solar panels and provides USB-A and USB-C (Type-C) output for a compatible phone or your own power bank.
USB-A with QC 3.0
Supports 5V/4.5A, 5V/3A and 9V/2A modes, with a maximum USB-A output of 22.5W.
USB-C output
Supports up to 5V/3A, or 15W maximum.
Two ports can work together
The confirmed combined output is up to 24W, subject to available sunlight, cable, charging protocol and device demand.
Interface limits are not continuous solar guarantees. Available power changes with real conditions.
05 · CHOOSE HOW YOU CHARGE
Stop. Deploy both panels.
Then choose your charging path.Stop. Deploy. Connect.
For the best available solar collection, set the backpack down in clear sunlight, fully extend the hidden panel and keep both panels facing the sun.
01 · SET UP FOR SUN
Fully deploy the second panel
Open the bottom zipper, pull the hidden 15W panel out completely and place the backpack steadily. Point both panels toward unobstructed sunlight before connecting a device.
02 · CHOOSE A CONNECTION
Direct to a device—or through a power bank
Plan 1: In steady sunlight, connect a compatible device to the internal USB-A or USB-C output using your own cable.
Plan 2: Connect your own compatible power bank first, then use the stored energy to charge your phone more predictably later.
Power bank, phone and charging cables are not included. Available output varies with sunlight, panel angle, cable, charging protocol and device demand.
06 · 30L ORGANIZED CARRY
Three layers for work, travel and the trail.
- 30L everyday and travel capacity
- 17-inch padded laptop compartment
- Three storage layers for documents and essentials
07 · SIZE & DEPLOYED FOOTPRINT
Compact for the commute.
Longer when fully deployed.Compact to carry.
Unfold for solar.
The backpack stays compact for everyday carrying. When you stop, pull out the hidden second panel to create a longer solar collection surface.
44 × 32 × 19cmClosed backpack
78.5cmFully deployed length
1.5kgProduct weight
Product dimensions are shown here. Package dimensions and gross shipping weight appear in the packaging section below.
08 · PRACTICAL CARRY DETAILS
Organized inside. Easier on the road.
Three organized storage layers
The 30L interior separates a large main compartment, a padded laptop layer and a smaller organization layer, with side pockets for quick-access items.
Water-resistant YKK zippers
YKK water-resistant zippers help limit splash entry during everyday travel and light rain. They do not make the entire backpack waterproof; do not immerse it, and keep charging ports and connected electronics dry.
Luggage pass-through strap
A rear hook-and-loop strap slides over a compatible rolling suitcase handle to help keep the backpack in place through airports and stations.
09 · EXTERIOR FEATURE MAP
Every exterior feature.
One clear view.
This annotated view maps the carrying hardware, storage access, cable pass-through, fixed solar panel and hidden pull-out panel.
10 · FOR THE WAY YOU MOVE
From business travel to open trails.
The same 30L solar charging backpack works across city commutes, airport travel, camping trips and hikes. Solar output still depends on where the panels face—not the name of the activity.
Swipe to explore everyday uses →
01 · BUSINESS
Structured carry for the workday.
02 · TRAVEL
Carry it through the terminal; deploy it outdoors.
03 · COMMUTE
30 liters for everyday essentials.
04 · CAMP
Deploy both panels when you stop.
05 · HIKE
Collect available energy in clear sun.
06 · BREAK
Keep the pull-out panel protected while indoors.
MODEL COMPARISON
13W for a fixed-panel setup.
30W for more area when stationary.Choose 13W or 30W.
SEPARATE MODELTHIS MODEL
13W Solar Backpack
Fixed single panelA simpler fixed-panel setup for everyday carrying and basic USB power in useful sunlight.
30L · PT-B-13W30W Solar Backpack
15W fixed + 15W hidden panelMore solar collection area when the backpack is placed steadily and the second panel is fully deployed.
30L · 1.5kg · PT-B-30WSpecifications
PT-B-30W at a glance.
- Solar panels
- Fixed 15W front panel + hidden pull-out 15W panel
- Combined rating
- 30W maximum when fully deployed
- Single-panel Vmp / Imp
- 9.9V / 1.51A
- Dual-panel Vmp / Imp
- 9.9V / 3.2A
- Built-in battery
- None
- USB-A output
- QC 3.0; 5V/4.5A, 5V/3A, 9V/2A; 22.5W max
- USB-C output
- 5V/3A; 15W max
- Simultaneous output
- Up to 24W combined
- Capacity
- 30L
- Dimensions
- 44 × 32 × 19 cm
- Fully deployed length
- 78.5 cm
- Weight
- 1.5 kg
- Laptop compartment
- Padded, up to 17 inches
- Outer / lining
- 1680D polyester / 320D polyester
- Color / model
- Dark Gray / PT-B-30W
- Package
- 34 × 22 × 46 cm; 2.1 kg gross
PACKAGING & IN THE BOX
Two confirmed items.
No power bank included.Backpack + junction box.
Power bank not included.
34 × 22 × 46cmPackage dimensions
2.1kgGross package weight
Included
- 30W solar backpack × 1
- Product certificate × 1
A power bank, charging cable, phone, laptop, rain cover and other accessories are not included.
30W solar backpack FAQ
Answers before you head outside.
Does this 30W solar backpack have a built-in battery?
No. It generates electricity when the panels receive sunlight, but it does not store power. A power bank is not included. Connect a compatible phone in steady sunlight, or use your own compatible power bank to collect available energy.
Is it always a 30W solar backpack?
The fixed front panel is rated at 15W. Pull out the hidden second 15W panel for a combined rated maximum of up to 30W when both panels are fully open under ideal sunlight. Actual output varies.
How do I open the hidden second panel?
Open the zipper at the bottom, pull the hidden panel out completely, then place the backpack steadily with both panels facing unobstructed sunlight.
Can I charge my phone directly?
Yes, if the phone is compatible and the sunlight is strong and steady. Direct charging works best when you stop and position the panels toward the sun.
Can it charge a power bank?
Yes. A compatible power bank that accepts one of the controller’s supported USB output modes can be used. Charging behavior depends on the power bank, cable, charging protocol, sunlight and panel position. The power bank is sold separately.
What output ports does it have?
USB-A supports QC 3.0 modes of 5V/4.5A, 5V/3A and 9V/2A, up to 22.5W. USB-C supports up to 5V/3A, or 15W. These are interface limits, not a promise of continuous maximum solar output.
Can USB-A and USB-C work at the same time?
Yes. The confirmed combined output is up to 24W, subject to available sunlight, cable, charging protocol and device demand.
Will it generate power while I am walking?
It can generate available power, but movement changes the panel angle and shade. Connect your own power bank while moving for more predictable device charging later.
Does it work on cloudy days?
It may produce some power in bright overcast conditions, but output will be lower and less stable than in direct sunlight. No fixed charging time is promised.
How long will charging take?
There is no single accurate time for every situation. Sunlight, one- or two-panel use, angle, shade, temperature, cable and the receiving device all affect the result.
Is the whole backpack waterproof?
The solar-panel surface is waterproof and the exterior is water-repellent. Do not immerse the backpack or connect wet electronics. No complete-backpack IP rating is claimed.
Can it charge a laptop?
No. The padded compartment can carry a laptop up to 17 inches, but the solar USB system is intended for compatible phones, power banks and other small USB devices.
What is the difference between the 13W and 30W models?
The 13W model has one fixed panel. The 30W model adds a hidden pull-out 15W panel, giving more collection area when both panels are deployed during stationary use.
What warranty does it have?
This product has a one-year limited warranty. See the Returns & Warranty section in the Help Center for current claim and return instructions.
Product resources
Setup, charging guidance and documents.
Read the 30W backpack guide now. Certification files can be added later in the downloads area without placing certificate images on this product page.
PT-B-30W · Dark Gray
Carry more sun. Deploy it when you stop.
Review the confirmed specifications, then return to the purchase area when you are ready.
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