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.
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.
RenogyBlack Division 100W Flexible
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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 SolarMEGA 100 FLEX Panel
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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.
RenogyBlack Division 100W Flexible
Complaints
Panels arrived scratched, per one owner
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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 SolarMEGA 100 FLEX Panel
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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.
RenogyBlack Division 100W Flexible
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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 SolarMEGA 100 FLEX Panel
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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.
RenogyBlack 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
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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 SolarMEGA 100 FLEX Panel
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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
RenogyBlack Division 100W Flexible vs Rich SolarMEGA 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 · Researched and edited by Michael Ambrose · Unbroken Ads LLC · How we score