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Not all solar bags are built the same. Kingsons’ Solar Power Bag uses MiaSolé CIGS (Copper Indium Gallium Selenide) flexible photovoltaic cells — a thin-film solar technology with 17.44% light-to-electricity conversion efficiency, 9W maximum output, and proven real-world performance in diffuse and indirect light. Specified. Tested. Available for OEM integration into your branded product line.
Explore our solar charging bags featuring MiaSolé CIGS flexible panels with 17.44% conversion efficiency, available for outdoor, travel, and lifestyle product categories.
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Many bag manufacturers claim “solar charging.” Few specify the cell technology, the conversion efficiency, or the real-world output under typical use conditions. Kingsons specifies all three — because buyers and their end consumers deserve to know what they are actually getting.
Full name: Copper Indium Gallium Selenide thin-film photovoltaic cell, manufactured by MiaSolé — a US-founded solar technology company known for flexible, high-efficiency thin-film cells.
Cell type: Thin-film flexible photovoltaic — the cells are deposited as a thin layer on a flexible substrate, allowing them to conform to curved surfaces including bag panels and backpack profiles.
Why it matters vs. standard flexible solar: The most common “solar bag” products use amorphous silicon (a-Si) flexible cells — a simpler, cheaper technology that typically achieves 6–10% conversion efficiency under ideal conditions and degrades significantly in indirect or diffuse light. MiaSolé CIGS cells operate at 17.44% efficiency and maintain meaningful output in the overcast, diffuse light conditions that represent most real-world outdoor use.
| Specification | Value |
|---|---|
| Cell technology | MiaSolé CIGS flexible thin-film |
| Light-to-electricity conversion efficiency | 17.44% |
| Maximum power output | 9W |
| Peak current | 1.7A |
| Output interface | USB-A port (standard) |
| Device | Battery Capacity | Charge Time (Full) |
|---|---|---|
| iPhone X | 2,716 mAh | ~3 hours |
| Samsung Galaxy S10 | 3,400 mAh | ~3.5 hours |
| 10,000 mAh power bank | 10,000 mAh | ~8.5 hours |
Note: Charging times are calculated from rated output under direct sunlight conditions. Performance in diffuse or indirect light will extend charge times proportionally — CIGS technology maintains a higher percentage of rated output vs. silicon alternatives under these conditions.
Silicon panels: Output drops sharply in overcast conditions — often to 15–30% of rated output under heavy cloud cover.
CIGS thin-film: Maintains proportionally higher output in diffuse light conditions — a property of the CIGS semiconductor material that makes it particularly suited to real-world outdoor use where perfect direct sunlight is not guaranteed.
Practical implication: A bag used on an overcast day, in a forest canopy, or in partial shade still generates meaningful electricity with CIGS cells — a performance gap that is invisible in spec sheets but critical in actual product use.
Flexible form factor: CIGS cells laminated to the bag back panel conform to the bag’s natural curve — no rigid frame required, no cracking risk from bag flexion.
Weather resistance: Panel and connections are waterproofed for outdoor use — the solar system functions in rain and high humidity conditions.
Durability: Flexible cell construction is less susceptible to the micro-cracking that affects rigid monocrystalline panels when subjected to mechanical stress from bag movement and loading.
The MiaSolé CIGS (Copper Indium Gallium Selenide) flexible solar chip delivers a 17.44% energy conversion rate with a maximum output of 9W at 1.7A peak current. It is flexible enough to conform to curved bag surfaces without compromising efficiency or durability. This is the component that separates a product that charges devices from one that charges devices reliably.
At 9W output, the solar system charges a 10,000mAh power bank in approximately 8.5 hours of direct sunlight, an iPhone X in approximately 3 hours, and a 3,400mAh device in approximately 3.5 hours. These figures are based on the MiaSolé chip’s rated performance and can be tested against sample units before any bulk order commitment.
Panel placement, internal cable routing, and power bank compartment dimensions are engineered into the bag structure at the pattern stage. This integration approach protects panel connections from stress and movement during use, extends product lifespan, and produces a finished product that looks considered rather than retrofitted.
Our 50,000 sqm facility runs 20 automated production lines and ships to over 100 countries. Every order goes through a three-stage quality control process: incoming materials inspection, inline production checks, and pre-shipment final inspection. All structural components are tested to documented standards before any batch leaves the factory.
Certifications: ISO 9001 | ISO 14001 | ISO 45001 | BSCI | SEDEX | GRS | FSC | RoHS
Target end-user: Hikers, campers, trekkers — users spending extended time outdoors where power outlets are unavailable and device charging is essential for navigation and communication.
Key features: 30–45L capacity, solar panel on back panel (full panel area for maximum output), USB-A output port, waterproof construction, load-bearing hip belt and frame system, dedicated hydration sleeve, padded laptop/tablet sleeve.
Solar configuration: Full MiaSolé panel area (300–400cm² approximate) for maximum output; secondary USB charging port from internal power bank pocket (solar + USB combination).
Primary markets: Outdoor gear brands, hiking and camping equipment retailers, adventure travel brands.
Target end-user: Long-term travelers, backpackers, digital nomads — users who travel continuously and need a reliable charging solution independent of power outlet access.
Key features: 25–40L capacity, solar panel on back panel, USB-A and USB-C output ports, carry-on compatible dimensions available, laptop compartment (15.6″), organized packing layout, anti-theft optional add-on (TSA lock, RFID blocking).
Solar configuration: MiaSolé panel + external USB adapter (dual charging system — solar charges power bank, power bank powers USB port).
Primary markets: Travel accessories brands, adventure lifestyle brands, airline loyalty program merchandise.
Target end-user: Business travelers and professionals who work outdoors or in transit — consultants, field engineers, remote workers who need device power independence.
Key features: 20–30L capacity, solar panel on back panel (moderate area for balanced weight/output), USB-A port, padded laptop sleeve (15.6″), professional exterior aesthetic, business-compatible design.
Solar configuration: Moderate panel area (balanced for professional aesthetic and functionality), USB-A port with internal power bank pocket.
Primary markets: Business accessories brands, tech company merchandise, premium corporate travel gifts.
Target end-user: Eco-conscious urban consumers, festival-goers, outdoor lifestyle users — the solar feature as both a practical function and a sustainability statement.
Key features: 15–25L capacity, solar panel on back panel, USB-A port, casual/lifestyle aesthetic, wide color range, lightweight construction.
Solar configuration: Compact panel area suited to lifestyle use (sufficient for phone charging); panel integrated cleanly into bag design.
Primary markets: Eco lifestyle brands, sustainable fashion accessories, festival and outdoor event merchandise, sustainability-positioned DTC brands.
| Parameter | Options |
|---|---|
| Panel cell type | MiaSolé CIGS (standard) |
| Panel area | 150–500cm² depending on bag format and target output |
| Output interface | USB-A standard; USB-C available |
| Output configuration | Solar-only USB port; Solar + internal power bank pocket (dual system) |
| Waterproofing | Standard outdoor waterproofing for panel and connections |
| Panel integration | Laminated to back panel (flush); semi-rigid frame (for larger panels) |
The MiaSolé CIGS panel holds up to the outdoor use conditions your buyers will test it against. Our ODM bases combine the solar system with waterproof fabric, durable hardware, and load-bearing construction suited for serious outdoor use.
If your brand already sells power banks, cables, or device accessories, a solar backpack is a natural product line extension with strong margin potential. We can work from your existing design language and integrate the solar system into a bag that fits visually and functionally within your product family.
A solar power bag is a high-perceived-value corporate gift in a category where most gifts look the same. OEM production at Kingsons supports full logo integration, custom colorways, branded packaging, and consistent quality across large gift order volumes. MOQ starts at 100 units for co-branded customization.
Get a Custom QuoteThe MiaSolé CIGS flexible solar chip delivers a 17.44% energy conversion rate with a maximum output of 9W and a peak current of 1.7A. In practical terms: a 10,000mAh power bank charges in approximately 8.5 hours, an iPhone X (2,716mAh) in approximately 3 hours, and a 3,400mAh device in approximately 3.5 hours. These figures assume direct sunlight conditions.
CIGS flexible panels conform to curved surfaces without cracking or losing efficiency, which matters for bags that flex during use. They are lighter than rigid panels and maintain higher conversion efficiency in diffuse or indirect light compared to standard amorphous solar panels. For a product that needs to work in real outdoor conditions rather than just on a spec sheet, the material choice matters.
Yes. Solar charging can be combined with a built-in USB-A or USB-C adapter, Qi wireless charging, RFID blocking, and anti-theft construction within a single OEM or ODM brief. We confirm technical feasibility and any impact on unit cost during the quoting stage.
No. The backpack is manufactured with the solar panel, internal cable routing, and a dedicated power bank compartment. Power banks are sourced separately. This is standard across the category and keeps your product compliant with airline carry-on regulations for lithium battery shipment.
Co-branded customization starts at 100 units. Original design ODM orders start at 500 units. Sample confirmation takes 7 to 10 days. Bulk production runs 30 to 50 days from contract signing.
Solar panel components and internal connections are subject to our standard physical durability testing protocol, including oscillating impact testing that simulates the load and movement stress of daily use. The flexible panel construction is also tested for performance stability after repeated bending cycles. Sample units are available for independent testing before bulk order commitment.
Tell us your bag format, target market, and technology brief — our R&D team will confirm the solar specification, panel configuration, and sampling timeline.