BigBlue 3 SunPower 28W Review (2026)

Name: BigBlue 3 SunPower 28W
Brand: BigBlue
Price: 70.00 USD
Availability: InStock
Rating: 8.4 (1 reviews)

The BigBlue 3 SunPower 28W has built a strong reputation in the budget solar charging space by using SunPower-licensed solar cells, which deliver noticeably better real-world efficiency than the generic cells found in many similarly priced competitors. At $70, it costs roughly a third of premium panels like the Goal Zero Nomad 20 while delivering output in the same general range, making it one of the strongest value propositions in portable solar charging.

Check price at BigBlue →

$70 retail

8.4

/10

TrailCraft Score

What Works

28W output across three panels delivers meaningfully faster charging than typical budget 2-panel designs
Three USB ports (2 USB-A, 1 USB-C) allow charging multiple devices simultaneously
Significantly cheaper than premium brand-name panels with comparable real-world output
Foldable three-panel design balances surface area against packed size reasonably well
Auto-detect technology adjusts output to match each connected device's optimal charging current

Limitations

Uses SunPower-licensed cells rather than a fully proprietary high-efficiency cell design
No barrel output or direct power bank compatibility — USB only
Folded size is still bulkier than ultralight-focused minimalist panels

Specifications

CapacityN/A (solar panel, no internal battery)

Weight1 lb 5 oz / 600g

InputDirect sunlight (no electrical input)

Output2x USB-A (2.4A each), 1x USB-C

HousingDurable nylon-covered panels with reinforced grommets

Dimensions11.4 x 6.3 x 1.3 inches (folded)

WarrantyBigBlue 18-month warranty

Score Breakdown

Charging Efficiency

8.2

Build Quality

8.0

Portability

7.8

Versatility

8.6

Value for Money

9.4

What Sets It Apart

SunPower is a well-regarded solar cell manufacturer, and BigBlue licenses SunPower cell technology for its panel line rather than using generic, unbranded cells. This generally results in better energy conversion efficiency than budget competitors using lower-quality cells, even though BigBlue's overall panel construction and brand positioning sit below premium options like Goal Zero or Anker.

The auto-detect technology built into the panel's USB ports automatically adjusts output current to match what each connected device requests, rather than outputting a single fixed current across all ports. This matters because mismatched charging current can result in slower-than-expected charging or, in rare cases, a device declining to charge at all if the panel's output doesn't match its expected charging profile.

28W across three panels for under $80 — most of the charging speed of premium panels at a fraction of the price

Who This Is For

The BigBlue 3 SunPower 28W is right for: budget-conscious backpackers who want solid solar charging performance without paying premium-brand prices, anyone who wants to charge multiple devices simultaneously from one panel, and hikers comfortable with USB-only output rather than a dedicated barrel connector.

A note on pricing and links: Prices listed are current as of June 2026 and may change. Always verify before buying. Some links on this page are affiliate links — if you buy through them, we may earn a small commission at no extra cost to you. It helps fund the testing and does not change our rankings.

How It Compares

Within this category, the BigBlue 3 SunPower 28W ranks #9 out of 14 products compared.

See the full comparison

All 14 options in this category ranked side by side — specs, scores, and pricing.

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Common Questions

Is BigBlue a reliable solar panel brand?

BigBlue has built a solid reputation in the budget solar charging space, particularly for using licensed SunPower cell technology, which generally outperforms generic unbranded cells found in many similarly priced competitors.

How does 28W solar charging compare to 20W panels like the Goal Zero Nomad?

The BigBlue's 28W rating gives it a theoretical edge in charging speed over 20W panels, though real-world performance depends heavily on sun conditions, panel angle, and cell efficiency rather than rated wattage alone. The two panels perform in a broadly similar practical range.

Can the BigBlue 3 SunPower charge a laptop?

With its USB-C port, it can trickle-charge laptops that accept USB-C PD charging, though the available wattage is on the lower end for laptop charging and works best as a supplemental rather than primary charging source.

Does this panel work in partial shade?

Like all solar panels, output drops significantly in partial shade or cloud cover. SunPower-licensed cells tend to handle suboptimal light somewhat better than generic cells, but no portable panel performs close to its rated output without direct sun.