The panel is an emergency, not a charging method
A solar power bank is a battery with a small panel glued to its back, and the honest way to describe that panel is by the area it offers rather than by the word solar. A phone-sized cell facing the sun produces a fraction of a watt; refilling a 20 000 mAh bank from it is a matter of days, not hours, and the makers that publish an expected solar recharge time are rare and worth reading. The panel is a way to gain a few percent during a walk, or to keep a bank alive over a long trip — not a charging method that replaces a socket. Everything else on this shelf reads like an ordinary power bank: capacity in watt-hours rather than milliamp-hours, output protocols and whether the wattage is shared between ports, and recharge time from a cable. What differs is the ruggedness these are sold for: an ingress rating that usually covers dust and splashes with the flaps closed, a torch of a stated brightness, a carabiner, and a weight that is the real cost of the panel and the rubber. We compare capacity in watt-hours, panel area and published solar recharge time, output protocols, ingress rating, torch and weight.
watt-hours not published · panel area not published · solar recharge time not published · 55 W output · ingress rating not published · torch not described · weight not published
A 26 800 mAh solar power bank with a 55 W output and automatic power regulation, whose integrated panel is described as a supplement rather than a charging method.
Best for: A camping trip where the bank is charged from the mains and the panel is a slow top-up.
≈ €20
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.
≈ £34 / €30
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.
≈ €27
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.
≈ €25
watt-hours not published · four folding monocrystalline panels, area not published · solar recharge time not published · USB-C 5 V/3 A in and out, two USB-A · ingress rating not published · torch not described · weight not published · 8 hours to recharge from mains
A 26 800 mAh solar power bank with four folding monocrystalline panels, a bidirectional USB-C port at 5 V 3 A, and a stated eight-hour mains recharge.
Best for: A long trip where the panels can be left unfolded in the sun all day.
≈ €36
A price quoted in the text of a PowerVerdict page dates from the day that page was written; the live figure beside each product is fetched while you read and replaces it.
