BigBlue · Updated July 2026
BigBlue 28W: full specs
BigBlue 28W. Every price and spec below is linked to its source and dated — no guesses.
Source: bigblue-tech.com verified STALE · 2026-07-11 ✓ corroborated verify in ledger
The BigBlue 28W has no US price of record yet. It earns a Silver Deskmark — 48/100 pay-blind standing, #5 of 9 in class.
Verified Jul 11, 2026 · figures linked to their source in the table below
Cheapest portable solar panels: Renogy 200W Foldable Solar Panel — $246.99
At Amazon
Amazon.com$74.96sold by BigBlue-US(as of — Details)
Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
The figure is the featured (buy box) listing at the moment shown, from Amazon's Creators API — not a page we read, and not necessarily the lowest listing.
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
Is the BigBlue 28W a good buy?
On the spec sheet, its cell efficiency of 25.4 % is the highest of the 7, its rated power watts of 28 is below the median of the 9, and its weight of 1.5 lb is below the median of the 9.
Specifications
| Price (US) | No listed price at source No US-dollar MSRP appears verbatim on either page checked. The BigBlue official store lists EUR64,95 and the Amazon.com listing (B01EXWCPLC) showed a EUR65.66 "Buy New" price — both served for Germany. No price is listed rather than converting EUR to USD (which would be a guess). |
|---|---|
| Brand | BigBlue |
| Released | — |
| Rated power watts | 28 |
| Cell efficiency (%) | 25.4 |
| Cell type | monocrystalline |
| Open circuit voltage (V) | — |
| Short circuit current (A) | — |
| Weight (lb) | 1.5 |
| Folded dims (in) | 11.1 x 6.3 x 1.4 |
| Ingress protection | IP44 |
| Surface material | — |
| USB ports built (in) | Yes |
| Connector output | — |
Source: bigblue-tech.com (read 2026-07-11) STALE · 2026-07-11 · corroborated by amazon.com (read 2026-07-11).
How we checked
The BigBlue official store page (source) for the SolarPowa 28 — the current retail name for the BigBlue 28W (no ammeter) — states Rated Power 28W, conversion efficiency up to 25.4%, "Monocrystalline Solar Cell," Net Weight 0.68kg / 1.5 lbs, Folded Size 11.1 x 6.3 x 1.4 inches, and 1x USB-A + 2x USB-C ports. The Amazon.com listing (corroboration), titled "BigBlue 28W Solar Panel Charger with Dual USB-C and USB-A," confirms the exact same model — 28W, dual USB-C + USB-A (5V/3A each, 5V/4.8A total), IP44 waterproof, 25.4% efficiency, Monocrystalline Silicon cells, 1.5 lbs, folds to 11x6x1.4 inches — matching the manufacturer spec sheet and confirming model identity (not a different wattage or the ammeter variant). Neither page displayed a US-dollar price (both geo-resolved to EUR), so the price is left blank; Voc, Isc, and surface-laminate material (described only as "polymer," not an ETFE/PET/glass/PDMS enum value) are not disclosed and are left blank.
Frequently asked questions
How much does the BigBlue 28W cost?
The BigBlue 28W has no US price of record as of 2026-07-11.
What are the BigBlue 28W's key specs?
BigBlue 28W (BigBlue): Rated power watts 28, Cell efficiency (%) 25.4, Cell type monocrystalline, Weight (lb) 1.5, Folded dims (in) 11.1 x 6.3 x 1.4. Full sourced spec sheet verified 2026-07-11.
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