Rich Solar 300 Watt Solar Kit - RS-K3004
Our 300W kit contains 3 of our high efficiency 100W Monocrystalline panels with 9 busbars and our 20A MPPT controller. The perfect addition to your collection of solar panels for travel trailers, this kit can be paired with our 200AH 12V Lithium battery. For a quieter, more peaceful outdoor experience, go solar now and start powering your RV, boat, or trailer!
Includes
- 3 x 100 Watt Monocrystalline Solar Panel (RS-M100)
- 1 x 40A MPPT Charge Controller (RS-MPPT40P)
- 1 x 20' #10 Gauge Solar Cable (Red), connects solar panel to controller (RS-20101)
- 1 x 20' #10 Gauge Solar Cable (Black), connects solar panel to controller (RS-20101)
- 1 x 10' #8 Gauge Battery Cable (Red), connects controller to battery (RS-810)
- 1 x 10' #8 Gauge Battery Cable (Black), connects controller to battery (RS-810)
- 3 x Mounting Z Brackets (one set of 4) (RS-ZB4C)
- 1 x 10A Inline Fuse Holder with Fuse(RS-SC10F)
What our Experts Think
Q&A
Q: What is the Rich Solar 300 Watt Solar Kit (RS-K3004)?
A: A complete off-grid 300W solar kit designed for RVs, campers, trailers, boats, and small off-grid systems, typically including three 100W monocrystalline panels plus an MPPT charge controller and full installation wiring hardware.
Q: What is included in the RS-K3004 kit?
A: The kit includes 3 × 100W solar panels (RS-M100), an MPPT charge controller (commonly 40A), solar-to-controller cables, battery cables, mounting Z-brackets, and an inline fuse holder, making it a plug-and-play starter system.
Q: What can the 300W kit power?
A: It can support basic 12V off-grid loads such as RV lighting, fans, phone/laptop charging, routers, and small appliances, and is mainly designed for battery charging and energy maintenance rather than heavy continuous loads.
Q: Is it suitable for RV and van life?
A: Yes. It is widely used for RVs, vans, campers, boats, and travel trailers, offering a simple entry-level solar setup for mobile off-grid living.
Q: Can it be expanded later?
A: Yes. The included MPPT controller typically allows future panel expansion (within controller limits), making it scalable for larger battery banks or higher energy demand.
Q: What type of batteries does it work with?
A: It is compatible with 12V battery systems including lithium (LiFePO₄), AGM, gel, and flooded lead-acid batteries, depending on controller settings.
Q: Why choose the 300W kit?
A: It offers a balanced starter system with all core components included, making it ideal for beginners who want reliable off-grid solar charging without designing a system from scratch.
Maintenance Tips
- Clean solar panels regularly with water and a soft microfiber cloth to remove dust, dirt, and bird droppings for maximum efficiency.
- Avoid abrasive cleaners, chemicals, or pressure washing that can damage the panel’s protective anti-reflective coating.
- Keep MC4 connectors and wiring dry, clean, and tightly secured to prevent power loss or intermittent charging issues.
- Inspect panel frames, mounting hardware, and brackets periodically for looseness, corrosion, or vibration damage (especially in RV or mobile setups).
- Ensure panels remain free from shading, as even partial shade can significantly reduce overall system output.
- Verify correct charge controller settings for your battery type (LiFePO₄, AGM, Gel) to ensure safe and efficient charging.
- Check all cable insulation and junction points regularly for wear, heat marks, or environmental damage.
- Keep the charge controller in a cool, dry, and ventilated location away from direct sunlight.
- After storms, travel, or long trips, recheck mounting stability, panel alignment, and wiring integrity.
- Do not exceed the controller’s rated input when expanding or upgrading the system.
Damage 
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