The bottom line The only solar bank here with four folding panels, which is the first design in this family that could plausibly recharge itself. It still publishes no area, no panel wattage and no solar charging time — and its output is the lowest of the five.
A 26 800 mAh bank that unfolds.
Four panels
Folding, monocrystalline, several times the area of the single pad on the other four banks in this family. This is the first design here where solar charging might actually contribute rather than merely trickle.
And still no figures
No area. No panel wattage. No solar charging time. Four panels, and the listing publishes exactly as much about them as the single-pad banks publish about theirs — nothing.
The output
USB-C at 5 V 3 A, bidirectional, plus two USB-A. Fifteen watts. The lowest output in this family, against 22.5 W on three of its shelf-mates and 55 W on one.
The figure that is published
About eight hours to recharge from the mains. One of the very few recharge times in this whole lot.
The charge counts
An iPhone 16 Pro four times, an iPhone 15 Pro Max 3.2 times, a Galaxy S26 Ultra 2.8 times, an iPad Pro once. Four named devices, which makes the capacity claim comparable.
Availability
German and French Amazon stores quoted 36 € to 43 € when this page was compiled.
British, Italian and Spanish Amazon catalogues carry an entry for it, with nobody selling.
American Amazon store returned nothing at all, so the buy button there runs a search instead of landing on an empty page.
These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.
Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.
What it gets right, and what it leaves out
Strengths
Four folding panels rather than one fixed pad, which is several times the collecting area
A mains recharge time is published — about eight hours
Charge counts given against four named current devices
Compromises
Still no panel area, wattage or solar charging time despite four panels
5 V 3 A is 15 W, well below the other banks in this catalogue
No watt-hours, ingress rating or weight
Specifications
Capacity in watt-hours
Nowhere in the listing
Panel area
Four folding monocrystalline panels, second bullet; no area or wattage is published
Published solar recharge time
Nowhere in the listing — only the mains recharge of about 8 hours is given, third bullet
Output protocols
USB-C supporting input and output at 5 V 3 A, plus two USB-A outputs, third bullet
Ingress rating
Nowhere in the listing
Torch
Nowhere in the listing
Weight
Nowhere in the listing
Amazon reference
B08NDN52R6 (same reference on 5 Amazon marketplaces)
EAN
0778299164764
Questions owners ask about this one
Do four panels make solar charging practical?
They multiply the collecting area several times over a single integrated pad, which moves the panel from decorative towards useful. Without an area or a wattage there is no way to say how far — and the listing publishes neither, despite the panels being the product’s defining feature.
Is 5 V 3 A slow?
It is 15 W, against 22.5 W on three other solar banks here and 55 W on one. For phones it is adequate; for a tablet it is slow. It is the price of a design built around panels rather than output.
watt-hours not published · panel area not published · solar recharge time not published · 3 USB fast-charge ports plus wireless · ingress rating not published · torch not described · weight not published
A 20 000 mAh solar power bank with wireless charging alongside three USB ports, charging up to four devices at once.
Best for: A bedside or a tent where a phone is dropped onto the bank rather than plugged in.
watt-hours not published · panel area not published · solar recharge time not published · 22.5 W on USB-A and USB-C · ingress rating not published · torch not described · weight not published
A 27 000 mAh solar power bank supplied with a USB-C input-output cable and a USB-A input cable, charging at 22.5 W.
Best for: A bag where the cables should come with the bank.
watt-hours not published · panel area not published · solar recharge time not published · 22.5 W and PD 20 W · ingress rating not published · torch not described · weight not published
A 27 000 mAh solar power bank with 22.5 W fast charging and PD 20 W, three outputs, and a stated three to five phone charges.
Best for: A weekend outdoors where three devices need charging and the panel is incidental.