It checks today's price at every store, compares the alternatives and answers in about a minute.
The Rich Solar MEGA 100 is a folding two-panel monocrystalline kit that opens to 36.4 x 25.2 inches and folds into a briefcase with a handle and adjustable kickstand. It puts out 100 W at about 22.6 V open circuit and 5.78 A short circuit, enough to top up a power station or trickle-charge a lead-acid or lithium battery bank through a charge controller. Buyers rate it highly for build quality and easy setup. It is heavier than flexible panels at 15.7 lb and has no built-in controller, so it competes on ruggedness and output rather than portability or plug-and-play convenience.
In stock
In stock
In stock
In stock
In stock
In stock
In stock
In stock
In stock
In stock
In stock
In stock
Lowest price we've seen: $199.99 on Nov 10 at Ampere Authority. Tracked across 12 stores since Nov 10.
Owners give the MEGA 100 top marks, praising the solid frame, the easy kickstand setup and steady output for charging batteries and power stations. Complaints are few and mostly about weight and the need to buy a controller separately.

