Product comparison · Flexible Solar Panels

Renogy Black Division 100W Flexible vs Rich Solar MEGA 100 FLEX Panel

The Renogy Black Division 100W Flexible scores 4.4 and ranks 5th of 10 in Flexible Solar Panels; the Rich Solar MEGA 100 FLEX Panel scores 3.8 and ranks 9th of 10 in Flexible Solar Panels. The Black Division 100W Flexible leads on warranty & support, the MEGA 100 FLEX Panel on operating range.

All 58 Renogy products
Renogy 100W Black Division Lightweight Flexible Solar Panel

Renogy Black Division 100W Flexible

$140 · 5th of 10 in Flexible Solar Panels

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  • Warranty & Support — 6 against 1
4.4
vs
3.8
All 46 Rich Solar products
Rich Solar MEGA 100 FLEX 12V 100W Flexible Solar Panel

Rich Solar MEGA 100 FLEX Panel

$170 · 9th of 10 in Flexible Solar Panels

Buy Now
  • Operating Range — 5 against 3

Across everything we scored, Renogy Black Division 100W Flexible sits 0.57 ahead — led by warranty & support.

Verdict

Black Division 100W Flexible ahead · +0.57 (4.4 vs 3.8)

Pick the Renogy Black Division 100W Flexible when

Warranty & support matters6vs1

Lifespan matters3vs1

Price matters$140vs$170

Pick the Rich Solar MEGA 100 FLEX Panel when

Operating range matters5vs3

Scored 15 October 2026 from published specs and owner reviews. We don't buy or test units. How we score

Usability Renogy Black Division 100W Flexible and Rich Solar MEGA 100 FLEX Panel, scored 0 to 10

  • Warranty & SupportRenogy Black Division 100W Flexible: 6 (higher)Rich Solar MEGA 100 FLEX Panel: 1

    Renogy Black Division 100W Flexible: 5 Years · Rich Solar MEGA 100 FLEX Panel: 1 Year.

    Renogy Black Division 100W Flexible

    • 5 years on material and workmanship

    Rich Solar MEGA 100 FLEX Panel

    • 1 year of material and workmanship cover, not prorated
    • Scope: Rich Solar's FAQ also gives lightweight flexible panels 1 year
  • Operating RangeRenogy Black Division 100W Flexible: 3Rich Solar MEGA 100 FLEX Panel: 5 (higher)

    Renogy Black Division 100W Flexible

    • Temperature coefficient of Pmax -0.38 percent per degree C

    Rich Solar MEGA 100 FLEX Panel

    • -0.35 percent per °C temperature coefficient of Pmax
    • Loads: rated 5,400 Pa snow and 2,400 Pa wind; -40 to 185 °F
  • LifespanRenogy Black Division 100W Flexible: 3 (higher)Rich Solar MEGA 100 FLEX Panel: 1

    Renogy Black Division 100W Flexible

    • Product page and warranty PDF cover output for 5 years
    • Conflict: Renogy's own datasheet says 25 years; scored on the shorter term

    Rich Solar MEGA 100 FLEX Panel

    • No power-output warranty published; flexible panels capped at 5

Same score

  • CapacityRenogy Black Division 100W Flexible: 1Rich Solar MEGA 100 FLEX Panel: 1

    Renogy Black Division 100W Flexible

    • 100 W, the bottom rung of the flexible-panel ladder

    Rich Solar MEGA 100 FLEX Panel

    • 100 W rated, on the 100 to 119 W rung for flexible panels
    • Electrical: 17.1 V and 5.85 A at Pmax, 20.4 V Voc, 6.13 A Isc
    • Tolerance: 0 to +5 W positive power tolerance
  • EfficiencyRenogy Black Division 100W Flexible: 1Rich Solar MEGA 100 FLEX Panel: 1

    Renogy Black Division 100W Flexible

    • 100 W from 1.093 by 0.582 m works out to 15.7 percent

    Rich Solar MEGA 100 FLEX Panel

    • 17.0 percent module efficiency from 1468 x 400 mm; 22.8 percent is the cell figure
    • Spec sheet: Rich Solar's own sheet also prints 17 percent module efficiency
  • FeaturesRenogy Black Division 100W Flexible: 3Rich Solar MEGA 100 FLEX Panel: 3

    Renogy Black Division 100W Flexible

    • IP67 junction box earns 2 of 8 points
    • Layout: the 36 half-cut cells run as one series string
    • Missing: no front-sheet material published (ETFE or PET)
    • Mounting: six pre-drilled holes and 2.3 ft output leads

    Rich Solar MEGA 100 FLEX Panel

    • IP68 junction box and MC4 leads; no front sheet, diodes or adapters stated
    • Cells: 30 monocrystalline ten-busbar cells, 182 x 91 mm
    • Mounting: pre-drilled holes and adhesive backing
  • VerificationRenogy Black Division 100W Flexible: 2Rich Solar MEGA 100 FLEX Panel: 2

    Renogy Black Division 100W Flexible

    • No certifier directory lists this model
    • Listings: certifications listed as CE and ISO only

    Rich Solar MEGA 100 FLEX Panel

    • No listing for RS-F100B in any directory; page claims none
    • Claim: page names no safety standard

Not scored for either

  • ValueRenogy Black Division 100W Flexible: not scoredRich Solar MEGA 100 FLEX Panel: not scored

Social score about the Renogy Black Division 100W Flexible and the Rich Solar MEGA 100 FLEX Panel

  • RedditRenogy Black Division 100W Flexible: 6 (higher)Rich Solar MEGA 100 FLEX Panel: 4

    The Renogy Black Division 100W Flexible reading covers its product line; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy Black Division 100W Flexible

    Read the full summary
    • Few reports: owner reports on Reddit about Renogy's flexible panels are few
    • Durable: one r/SolarDIY owner said flexible Renogy panels trimmed to fit a van roof still worked after about 2 years (January 2025)

    Rich Solar MEGA 100 FLEX Panel

    Read the full summary
    • Scope: few Reddit threads name Rich Solar, and those found are complaints
    • Battery: an r/SolarDIY owner's new ALPHA 5 read 6.7 V instead of 48 V, and Rich Solar's technician had not returned his call after two days (August 2023)
    • Order: an r/SolarDIY buyer waited from March for an out-of-stock ground mount, then was told its price had risen from $180 to $699 and cancelled; the refund took months (May 2025)
  • GoogleRenogy Black Division 100W Flexible: 5Rich Solar MEGA 100 FLEX Panel: 5

    The Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy Black Division 100W Flexible

    Complaints

    • Panels arrived scratched, per one owner
    Read the full summary
    • DIY Solar Forum: one owner fitted two Black Division panels to a truck camper
    • Support: the first pair arrived scratched and Renogy sorted it out
    • Too early: a week in, the owner had too little time to judge output or durability (June 2023)

    Rich Solar MEGA 100 FLEX Panel

    Read the full summary
    • Panels: DIY Solar Forum owners of Rich Solar 100 W panels reported them working as rated, one saying eight of them each pushed more than 100 W (August to September 2020)
    • Defects: an owner of 20 of the 100 W poly panels saw faint snail trails after a summer and found one with a broken diode wire (January 2021)
    • Controller: another found Rich Solar's MPPT controller OK but its setup and Bluetooth app in need of work (January 2021)
    • Warranty: a DIY Solar Forum owner reported Rich Solar cut its CIGS panel warranty from 5 years to 1 in 2021 (June 2026); an Escape Forum owner waited six weeks on a warranty claim (August 2024)
  • YouTubeRenogy Black Division 100W Flexible: 6Rich Solar MEGA 100 FLEX Panel: 6

    The Renogy Black Division 100W Flexible reading covers the whole brand; the Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy Black Division 100W Flexible

    Read the full summary
    • Disclosure: both channels found carry a tie to the panels they review
    • Freedom in a Can: passes on a 10 percent Renogy code through Renogy's affiliate link; found no delamination on two 100 W flexible panels after 9 months and 9,000 miles
    • Johnny's Weekends: earns Amazon commission on the panels it links; found Renogy's 200 W flexible panel performed well but trailed a CIGS panel under shade (2023, about 128,000 views)

    Rich Solar MEGA 100 FLEX Panel

    Read the full summary
    • Will Prowse: in a test of several panels a Rich Solar 200 W mono gave 157 W, 78.5 percent of rating, and a 100 W poly 88 W; he kept the poly first on his list for a small panel (May 2021, about 366,000 views)
    • Disclosure: Will Prowse states every video includes paid promotion or free product and some links are affiliate links
  • AmazonRenogy Black Division 100W Flexible: 8Rich Solar MEGA 100 FLEX Panel: 8

    The Rich Solar MEGA 100 FLEX Panel reading covers the whole brand.

    Renogy Black Division 100W Flexible

    Liked

    • Build quality, positive in 24 of 28 tagged reviews
    • Charging a camper battery fully each day, positive in 9 of 11 tagged reviews
    • Easy installation, positive in 7 of 9 tagged reviews

    Complaints

    • Power output below rating, negative in 10 of 27 tagged reviews
    • Durability, negative in 7 of 15 tagged reviews
    • Sun damage within a year, per one owner
    Read the full summary
    • Listing: Renogy's 100W-Black flexible listing on Amazon US (B09W21FRBC), whose description is the Black Division panel at 43 by 22.9 in and 5.3 lb
    • Rating: 4.5 from 215 ratings, 76 percent five-star and 5 percent one-star
    • Output: Amazon's review summary reports mixed power output, some owners seeing 115 W peaks and others 60 to 65 W
    • Durability: mixed, with one owner reporting sun damage within a year

    Rich Solar MEGA 100 FLEX Panel

    Read the full summary
    • Seller: Rich Solar's Amazon US listings sit in a RICH SOLAR brand store sold and shipped by SUNRICH ENERGY
    • Panels: the 100 W 12 V panel family reads 4.7 from 1,326 ratings, 84 percent five-star and 2 percent one-star; the 200 W 12 V panel 4.6 from 519; the 200 W 24 V panel 4.3 from 252 (October 2026)
    • Controller: the BRAVO 40 MPPT controller reads 3.8 from 4 ratings (October 2026)

Renogy Black Division 100W Flexible vs Rich Solar MEGA 100 FLEX Panel: pros and cons

Strengths

  • Half-cut PERC cellsby Renogy's datasheet and page
  • Light and bends far
  • Sealed junction box and connectors
  • Rated for heavy snow and wind loads
  • Six pre-drilled mounting holes
  • $10.00 less than Renogy's RNG-100DB-H at the same 100 Wsize and weight

Drawbacks

  • Low module efficiency
  • Output warranty term stated two ways by Renogy
  • Loses more output in heat
  • No front-sheet material publishedETFE or PET
  • Certifications listed as CE and ISO only

Rich Solar MEGA 100 FLEX Panel

Overall score 3.8

Strengths

  • Bends to fit curved roofs
  • Very light and thin
  • Well-sealed junction box
  • Rated output is a floornot a ceiling
  • Holes and adhesive backing for mounting

Drawbacks

  • One-year warranty only
  • No power-output guarantee
  • Module efficiency well under the cell figure marketed
  • Front-sheet material not published
  • Short pre-attached leads

Renogy Black Division 100W Flexible vs Rich Solar MEGA 100 FLEX Panel: the numbers

Price, scores and rank, then only the specs that differ. Green marks the side with more.

4.4
Overall
Usability2.6
Social6.3

5th of 10 in Flexible Panels

3.8
Overall
Usability1.9
Social5.8

9th of 10 in Flexible Panels

  • Cell type
    RenogyMono PERC
    Rich SolarNot listed
  • Warranty
    Renogy More5 Years
    Rich Solar1 Year
  • Weight
    Renogy5.3 lb
    Rich Solar4.8 lb

Same on both

  • Not listedSystem voltage
  • Not listedCapacity
  • 100-149 WPanel power
  • Not listedAC output
  • Not listedCharge current
  • Not listedLow-temperature charging
  • Not listedMonitoring
  • None verifiableSafety listings

We earn a commission if you buy through these links. It never changes a score.

Not sold on either one?

The top-scored and the cheapest other pick from each brand.

More from Renogy 4 scored in Flexible Solar Panels

Renogy 200W Flexible Solar Panel
Top scoredRenogy 200W Flexible Panel$312$172 more
5.3
What’s different
  • Panel power: 200-249 W, not 100-149 W
Pick it ifCapacity matters8vs1
Renogy 100W Lightweight Flexible Solar Panel
Lowest priceRenogy 100W Flexible Panel$150$10 more
4.0
What’s different
  • Nothing we record differs.

More from Rich Solar 2 scored in Flexible Solar Panels

Rich Solar MEGA 200 PRO FLEX 24V 200W Flexible Solar Panel
4.5
What’s different
  • Panel power: 200-249 W, not 100-149 W
Pick it ifCapacity matters8vs1
Rich Solar MEGA 100 PRO FLEX 24V 100W Flexible Solar Panel
Lowest priceRich Solar MEGA 100 PRO FLEX 24V Panel$170same price
3.8
What’s different
  • Nothing we record differs.

Renogy Black Division 100W Flexible vs Rich Solar MEGA 100 FLEX Panel: common questions

Is the Renogy Black Division 100W Flexible better than the Rich Solar MEGA 100 FLEX Panel?

On our scores, the Renogy Black Division 100W Flexible is ahead, 4.4 against 3.8. The Renogy Black Division 100W Flexible leads on warranty & support (6 against 1) and lifespan (3 against 1). The Rich Solar MEGA 100 FLEX Panel leads on operating range (5 against 3).

Which is cheaper, the Renogy Black Division 100W Flexible or the Rich Solar MEGA 100 FLEX Panel?

The Renogy Black Division 100W Flexible, at $140 against $170: $30 less.

Which has the longer warranty, the Renogy Black Division 100W Flexible or the Rich Solar MEGA 100 FLEX Panel?

The Renogy Black Division 100W Flexible: 5 Years, against 1 Year.

What do owners say about the Renogy Black Division 100W Flexible and the Rich Solar MEGA 100 FLEX Panel?

Across 4 independent sources scored for both, the Renogy Black Division 100W Flexible is ahead on Reddit; Google, YouTube and Amazon are level.

More flexible solar panels comparisons

More head-to-heads with these two, plus the full brand comparison.

Scores calculated 15 October 2026 · Products excluded where fewer than two independent sources cover them ·  · How we score

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