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Head-to-head · Best Portable Solar Panels

FlexSolar 40W vs FlexSolar 60W

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

FlexSolar 60W comes out ahead by a clear margin (4.7 vs 4.3). The gap is mostly about Car campers who want immediate plug-and-play versatility with multiple device charging options. — read the strengths below before deciding.

FlexSolar 40W
Ranked #6 in Best Portable Solar Panels
FlexSolar 40W
4 sources$56.99as of Oct 2

The FlexSolar 40W delivers outstanding direct-sun charging efficiency, with outdoorgearlab measuring 4,302 mAh in one hour via USB-C. Its IP67 rating and compact folded size make it durable and easy to carry for lightweight hikers. However, performance drops significantly in indirect sunlight or cloudy conditions, requiring constant repositioning to maintain output. The lack of a built-in kickstand forces users to improvise support against rocks or gear, as noted by nordicgearlab. This model fits campers who can track the sun and manage expectations for portable solar power, but those needing reliable fast charging in poor weather should look elsewhere.

Strengths
  • — Outstanding direct-sun charging efficiency, producing 4,302 mAh in one hour via USB-C according to outdoorgearlab measurements.
  • — IP67 waterproof and dustproof rating protects the monocrystalline panels from rain and dirt immersion.
  • — Versatile output options include a 40W USB-C port, an 18W USB-A port with QC3.0, and a DC5521 port for power stations.
Watch-outs
  • — No built-in kickstand or carrying case, requiring users to prop the panel against objects like rocks or gear.
  • — Does not include any charging cables (such as DC adapters), necessitating separate purchases for power station connectivity.
  • — Performance drops significantly in indirect sunlight or cloudy conditions compared to direct sun performance.
$56.99 · Check Price on AmazonFull review →
FlexSolar 60W
Higher ratedRanked #2 in Best Portable Solar Panels
FlexSolar 60W
4 sources1 derived$65.99as of Oct 2

Outdoor Gear Lab found that the FlexSolar 60W generates over 5,100 mAh per hour via USB-C in direct sunlight, while The Camping Nerd noted its versatile junction box supports DC and multiple device charging. However, it weighs approximately 6.4 lbs, which reduces portability for ultralight backpacking compared to smaller competitors. The cloth exterior also attracts dust more easily than molded plastic alternatives, requiring regular cleaning to maintain efficiency. This model fits car campers needing high output and extensive accessories, but hikers should look elsewhere due to its significant weight.

Strengths
  • — Outperforms lower-wattage competitors in direct sunlight, generating over 5,100 mAh per hour via USB-C according to Outdoor Gear Lab.
  • — Includes a versatile junction box with DC (20-28V), USB-C PD (60W), and dual USB-A ports for charging power stations and multiple devices simultaneously.
  • — Comes with extensive accessories including a 10 ft DC cable, four DC adapters, and alligator clamps for immediate use with various power stations.
Watch-outs
  • — Weighs significantly more (approx. 40 oz to 6.4 lbs) than smaller competitors, reducing portability for ultralight backpacking.
  • — Cloth exterior material tends to attract dust and dirt more easily than molded plastic alternatives.
$65.99 · Check Price on AmazonFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

FlexSolar 40W

The FlexSolar 40W is drastically lighter (2.86 lb) than the Bluetti PV350 and Jackery SolarSaga 200, making it ideal for backpackers who cannot carry heavier panels. However, its IP67 waterproof rating offers superior weather protection compared to the non-waterproof Jackery SolarSaga 100W.

FlexSolar 60W

The FlexSolar 60W includes extensive accessories like DC cables and adapters out of the box, whereas the Bluetti PV350 relies on a long integrated MC4 cable but lacks additional hardware. While both offer good direct-sun performance, the FlexSolar 60W is heavier than the compact FlexSolar 40W, reducing its appeal for those prioritizing minimal pack weight.

Specs side-by-side

SpecFlexSolar 40WFlexSolar 60W
Wattage40 W60 W
Panel TypeMonocrystallineMonocrystalline
EfficiencyUp to 24%—
Weight2.86 lb2.51 lb
Water ResistanceIP67IP65 Rating
Dimensions8 x 11.1 x 1.8 in13.8 x 9.1 x 2.2 in
Connector TypeUSB-C, USB-A, DC—
MaterialETFEMonocrystalline Silicon
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