Allpowers SP001 21W
(3 reviews)
21W foldable and just 610g: the little USB solar panel that charges a phone, tablet or power bank in the sun, with no socket or bulk.
- Power: 21 W (monocrystalline)
- Outputs: USB-A and USB-C (18W max each)
- Format: Foldable, 610g
- Use: Phone, tablet, power bank
- 21W foldable, ultralight, 2 USB ports
Detailed overview: Allpowers SP001 21W USB portable solar panel
The Allpowers SP001 is an ultralight 21 W foldable solar panel, one of the lightest and most compact in its class at 610g. It is aimed at those who want a small, genuinely portable solar energy source so they never run out of battery on a phone, tablet or power bank, far from any socket.
It offers two USB outputs: a USB-A port and a USB-C port, both able to deliver up to 18W depending on the device plugged in. Unlike several other small panels on the market, this ceiling stays close to the panel's own rated output: the port electronics are almost never the limiting factor, actual charging speed depends on the solar output itself, which varies with sunlight and orientation.
Its monocrystalline cells are rated at 22 to 25% efficiency. Folding into three sections, it takes on a very compact folded format (220 x 208 x 20mm) that slips into a bag, a glovebox or a backpack, and deploys in an instant.
The panel's fabric is rated IP67, but the connector housing that groups the two USB ports is not built to be waterproof: it is best kept away from direct rain despite the fabric's own good weather resistance.
Keep in mind that a 21 W panel remains a top-up accessory, not a fast charger: output depends heavily on orientation and sunlight. Light, discreet and practical, the Allpowers SP001 21W is a clever companion to keep your small devices charged on the move.
Full specifications
Detailed characteristics (EAN: 0759187222827)
Panel
| Peak power?Rated panel power in full sun (STC conditions). | 21 W |
|---|---|
| Cell technology?Cell type; monocrystalline offers the best efficiency, flexible CIGS tolerates shading better. | Monocrystalline |
| Conversion efficiency?Share of solar energy converted to electricity; higher means a more compact panel for the same power. | 25 % |
| Panel type?Foldable (portable), rigid framed (fixed install) or flexible (curved surfaces). | Foldable |
| Bifacial?Also captures reflected light on its rear side, for extra output. | No |
| Number of folds?Number of foldable segments. | 3 |
Outputs and connectors
| Output connectors?Output socket type(s) (MC4, XT60, Anderson, DC, USB…); determines compatibility with your station. | USB-C, USB-A |
|---|---|
| USB-C outputs?USB-C ports to charge devices directly, without a station. | 1 × 18 W |
| USB-A outputs?USB-A ports to charge devices directly. | 1 × 18 W |
Durability and format
| Weight?Weight of the panel. | 0.61 kg |
|---|---|
| Unfolded dimensions (L × W × D)?Footprint when unfolded, in millimetres. | 654 × 208 × 5 mm |
| Folded dimensions (L × W × D)?Footprint when folded for transport, in millimetres. | 220 × 208 × 20 mm |
Warranty
| Warranty?Length of the manufacturer's warranty. | 1 year |
|---|
☀ How fast does this panel recharge a power station?
The Allpowers SP001 21W panel (21 W) recharges a Jackery Explorer 1000 v2 (1070 Wh) in ~73h or an EcoFlow Delta 2 Max (2048 Wh) in ~139h, in full sun.
| Compact / mid | Recharge |
|---|---|
| Jackery Explorer 100 Plus (99 Wh) | ~6h45 |
| EcoFlow Trail 200 DC (192 Wh) | ~13h |
| EcoFlow River 2 (256 Wh) | ~17h |
| EcoFlow River 2 Pro (768 Wh) | ~52h |
| High capacity | Recharge |
|---|---|
| EcoFlow Delta 2 Max (2048 Wh) | ~139h |
| Allpowers R3500 V2 (2880 Wh) | ~196h |
| Jackery Explorer 3000 v2 (3072 Wh) | ~209h |
| Fossibot F3600 Pro (3840 Wh) | ~261h |
Estimate in full sun (ideal conditions). In practice, count on 3 to 5 hours of truly useful sunlight per day, so a full recharge may span several days depending on weather and orientation.
Our tester's review: Julien De Jurquet
The SP001 is a clever little solar charger, light and foldable, worth keeping in a bag so you never run out of battery on a phone or tablet out in nature. Its two USB ports (USB-A and USB-C) reach up to 18W each, a ceiling close to the panel's own rated output: unlike several other small panels on the market, the ports themselves are almost never the bottleneck, the amount of sunlight available is. We like its featherweight (610g) and its ultra-compact folded format. The limits are obvious and accepted: at 21W, real-world output stays modest and depends heavily on orientation, the connector housing is not built to be waterproof despite the fabric's IP67 rating, and the warranty covers only one year. To top up a phone or tablet while hiking or travelling, at this price, it is a genuinely handy accessory.
In-depth review Allpowers SP001 21W: our full review 3.8/5 Read our full review → Efficiency 3.1 Portability and size 4.6 Weather resistance 3.8 Output ports 3.8 Capacity and expansion not measured Solar input and MPPT not measured Control and smart features not measured Installation and compliance not measured Build and endurance 3.6 Battery compatibility not measured Safety and protections not measuredFrequently asked questions: Allpowers SP001 21W USB portable solar panel
It charges a phone, tablet or power bank directly in the sun via its two USB ports (USB-A and USB-C, up to 18W each). It is a nomad top-up accessory, not a fast charger or a vehicle battery maintainer.
Yes, thanks to its USB-A and USB-C ports, it directly charges a phone, tablet or power bank in the sun. Charging speed depends heavily on sunlight and orientation, but it is very handy for portable top-ups.
Yes, it folds into a very compact (220 x 208 x 20mm) and ultralight (610g) format that slips into a glovebox, a bag or a backpack. It deploys in an instant.
No. This SP001 model is a panel only, with no built-in battery. Allpowers separately sells an SP002 with a 10,000mAh battery: the two look similar and are sometimes mixed up in online listings, but they are two distinct products.
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Published on 10/07/2026, updated on 08/09/2026