How To Choose Folding Solar Panel Wattage
Size the panel from the load, not from the pack. A practical map from 5W to 400W across our sewn and ETFE ranges.
The most common sizing mistake in this category is choosing a panel by how big it looks folded. Wattage should come from the device being charged and how quickly it has to recover, and our range is deliberately split so that decision maps onto a specific line.
5W To 21W: Phones, Tablets And Power Banks
This is the low-wattage sewn line, available at 5W, 7W, 14W and 21W, with smartphones, tablets and power banks listed as its compatible loads.
A 5W panel trickle charges a handset in good sun. For a usable rate on a modern phone, or for a tablet, start at 14W.
40W To 400W: Power Stations, Storage And Car Batteries
The high-wattage sewn line runs 40W, 60W, 100W, 200W, 300W and 400W and adds energy storage systems and car batteries to the compatible load list.
A 500Wh portable power station wants 100W as a practical minimum. Below that the recharge takes longer than a typical trip.
The ETFE Line Covers Both Ends
The laminated ETFE range spans 7W, 14W, 21W, 30W, 40W, 60W, 100W, 200W, 300W and 400W, so it can replace either sewn family where conditions justify the premium.
It is also where the 30W size sits, which does not appear in either sewn family.
Angle Costs More Output Than Wattage Buys
A 200W panel lying flat on uneven ground can deliver less than a well-angled 100W. This is why a stand is on the customisation list for the high-wattage and ETFE lines.
Partial shading is the other silent killer. A shadow across part of the cell array cuts output far more than its area would suggest.
Match The Junction Box To The Device
Connector and junction box configuration is customisable on every line. Tell us the power station, battery or device the panel will charge and we specify the output set to match it.
Getting this right at order removes the adapter cable that customers otherwise have to source themselves.
Categories Referenced In This Guide
Models Discussed Above
Low Wattage Folding Solar Panel
Pocket-format mono cell panels for phones, tablets and power banks.
View Specifications
High Wattage Folding Solar Panel
Mono cell sewn panels sized for power stations, energy storage and car batteries.
View Specifications
ETFE Folding Solar Panel
Higher conversion efficiency, lighter, more waterproof and more durable than the sewn format.
View SpecificationsKeep Reading
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What panel do I need for a 1000Wh power station
200W and above is realistic if you want a meaningful recharge in a day. Send us the station's maximum solar input rating and we will size it precisely.
Can I connect two panels together
That depends on the junction box and the target device. Tell us the intended setup and we will confirm what the configuration supports.
Does wattage change the folded size much
Yes, materially, from a pocket wallet at 5W to a large folded array at 400W. Exact folded dimensions are confirmed at quotation for each wattage.
Put This Into A Quotation
Send the models and quantities you settled on and we will price them, including any customisation.