fossibot · SP420
SP420 – 420 W folding solar panel
A large-area portable panel for several days of use away from mains power.
A CampOFF alternative recommended on its technical specifications – we have not tested it in person. According to the manufacturer's data sheet it fits this performance class.
Currently unavailable
The purchase does not happen on CampOFF. The button opens the current product page of the partner selling it.
Purchase links go live once each partner programme is approved, brand by brand. Until then this page is information only.
Any other questions?
For order or technical questions, the customer service of the partner selling the product can help.
Technical data
- Rated power
- 420 W
- Construction
- foldable
- Open-circuit voltage (Voc)
- 38.4 V
- Voltage at max power (Vmp)
- 32 V
- Current at max power (Imp)
- 13.1 A
- Output connector
- MC4
- Weight
- 13.97 kg
What is it for?
Recharging the power station without mains. If you stay in one place for several days this is your only charging source — without driving, a DC-DC charger does not help either.
Works together with
Included in these bundles
Family Roadtrip – expandable version
The same family need with expandable storage and a larger portable panel, from a single shop.
- Estimated daily consumption
- 1150 Wh
- Autonomy
- 5.7 days
3 items
This set is not fully available right now. For the same need we recommend this complete alternative system: Family Roadtrip
Off-grid Pro – expandable version
The same long stretch off the grid, in a system that grows from 3840 Wh to 11.5 kWh.
- Estimated daily consumption
- 1400 Wh
- Autonomy
- Energy balance expected
3 items
This set is not fully available right now. For the same need we recommend this complete alternative system: Off-grid Pro
Home Backup – expandable version
The same home bridging, in a system that grows to 11.5 kWh with expansion batteries.
- Estimated daily consumption
- 2400 Wh
- Autonomy
- 1.2 days
1 items· €1,429.00
Alternatives
30W foldable
30 W folding solar panel
Phone and headtorch-level top-ups for hiking, in barely half a kilogram.
€46.90EU reference price
Last price check: 23 August 2026
60W foldable
60 W folding solar panel
With an MC4 output: slow but steady recharging for a small power station.
€59.90EU reference price
Last price check: 23 August 2026
100W bifacial
100 W bifacial folding solar panel
Bifacial cells: the back side generates too where light is reflected from below — over a bright, reflective surface that is a real gain.
€94.90EU reference price
Last price check: 23 August 2026
Reviews
We publish our own reviews when we have something to say — we do not collect stars from elsewhere.
Commonly used together
Not sure how big a system you need?
Tell us what you are taking and how many days you spend off-grid. We will tell you how much storage and how much solar is enough — and when a smaller system already covers it.
⚡ Work out what system I needQuick facts and common questions
SP420 – 420 W folding solar panel — Rated power: 420 W, Weight: 13.97 kg. A large-area portable panel for several days of use away from mains power.
- Rated power: 420 W
- Weight: 13.97 kg
Frequently asked questions
How much does a 420 W solar panel put back per day?
On a Central European average, about 1029 Wh is realistic on a sunny day. Under cloud, plan with roughly half of that.
Where can it be bought?
The purchase does not happen on CampOFF but in the webshop of the partner selling the product. The shop page shows the price in EUR; we only state the last verified EU reference price.