Solar Panels

MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified

$ 299.99USD · price may vary

Model: RS-M250
Specifications: 0

Overview

Power up your solar system with the RICH SOLAR MEGA 250, a high-performance 250-watt, 12V monocrystalline panel built for demanding off-grid and mobile applications. With a rugged aluminum frame, high output, and universal mounting options, this panel is ideal for RVs, cabins, mobile power systems, and solar backups.

Key Features:

High-Efficiency 250W Output – Optimized for 12V battery systems, delivering strong performance in compact spaces.

Easy, Flexible Installation – Pre-drilled mounting holes compatible with Z brackets, pole mounts, ground racks, and tilt mounts.

Durable All-Weather Build – Engineered with tempered glass and a corrosion-resistant aluminum frame for harsh outdoor conditions.

Plug-and-Play Ready – Includes ≈35" panel leads and supports both on-grid and off-grid inverters.

High-End Off-Grid Performance – Ideal for mobile setups, backup systems, or expanding existing solar arrays.

Installation

Easy installation and handling for various applications (high-end off-grid and mobile applications)

Pre-drilled holes compatible with ground mounts, Z brackets, pole mounts and tilt mounts

Compatible with on-grid and off-grid inverters

Warranty

25 year limited power output

Built-in Components

RICH SOLAR 250 watt monocrystalline solar panel

Panel leads (pair): 3 feet each

IP65 rated waterproof junction box

IP67 rated waterproof solar connectors

Bypass diodes built-in the junction box

Specifications

Maximum Power (Pmax): 250W

Max Power Voltage (Vmp): 18.9V

Max Power Current (Imp): 13.2A

Open Circuit Voltage (Voc): 22.8V

Short Circuit Current (Isc): 13.7A

Maximum System Voltage: 1,500VDC

Temperature Range: -40°F to +185°F

Panel Dimensions: 60.6 x 29.9 x 1.2 in

Weight: 26.9 lbs

Cable Length: ≈ 35 in

Materials: Monocrystalline Silicon, Tempered Glass, Aluminum Frame

Built for power and performance, the MEGA 250 panel gives you more wattage per square inch while remaining easy to install and compatible with a wide range of solar components. Backed by a 25-year power output warranty and Shop Solar’s top-rated support.

Reading the specifications

Detailed specifications for MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified have not been published yet. Rich Solar lists this solar panel in the Solar Panels, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For a solar panel, the figures that matter most are cell technology — mono PERC, N-type TOPCon, HJT, or bifacial, temperature coefficient of power, usually −0.26 to −0.35 %/°C, first-year and annual degradation, and the performance warranty that guarantees them and physical dimensions and weight, which decide what fits your roof and mounting. Panels are the generating half of the system and the part that determines how much energy is available at all. They are also the longest-lived component, routinely still producing over 80% of their original output after 25 years.

What to check before ordering

The checks below apply to any solar panel. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Consider N-type TOPCon or bifacial modules where space is tight or the mounting is elevated and reflective — bifacial gains of 5–15% are realistic over a light-coloured flat roof or the ground, and close to zero flush against a dark tile roof.
Keep every panel in a string identical in model and rating. Mismatched modules in one string pull the whole string down to the weakest one.
Compare cost per watt rather than price per panel — a higher-wattage module is often cheaper per watt and needs fewer mounting rails, clamps and cable runs.
Prefer a lower (closer to zero) temperature coefficient in hot climates. Panels lose output as they heat up, and on a 45 °C roof the difference between −0.34 %/°C and −0.29 %/°C is real energy over a year.

Common mistakes

Assuming rated power is what you will see. Real-world output at midday is typically 75–85% of the nameplate figure after temperature, soiling, wiring and inverter losses.
Underestimating shade. A single shaded cell can suppress an entire string unless you use module-level optimisers or microinverters.
Ignoring certification. IEC 61215 and IEC 61730 are the baseline; without them, warranty claims and grid approvals get complicated.

Price and availability

MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified is listed at $ 300 (USD). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Rich Solar locally before ordering.

MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified — frequently asked questions

How much does MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified cost?

MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified is listed at $ 300 (USD). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified?

MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified is a Rich Solar product, listed under solar panels with model reference RS-M250. The Rich Solar brand page lists the rest of its range so you can compare across the catalogue.

Is MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified right for my system?

That depends on what it has to connect to. For a solar panel, check cell technology — mono PERC, N-type TOPCon, HJT, or bifacial, temperature coefficient of power, usually −0.26 to −0.35 %/°C and first-year and annual degradation, and the performance warranty that guarantees them against the rest of your equipment before price enters the decision. Keep every panel in a string identical in model and rating. Mismatched modules in one string pull the whole string down to the weakest one.

Where can I buy MEGA 250 Watt Monocrystalline Solar Panel | Best 12V Panel for RVs and Off-Grid | 25-Year Output Warranty | UL Certified?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.

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