Can I Power 12v Fridge And CPAP Machine With 400W Rich Solar Kit For 4-5 Days Off Grid?
Published 07/08/2025
Question:
Can I power a 12V fridge and CPAP machine with the 400W Rich Solar kit for 4-5 days off-grid? I have 2 100ah lithium batteries
asked by: Susan
Expert Reply:
Absolutely, Susan! The Rich Solar 400W RV Solar Panel Kit # RS97VR kit paired with a pair of 100Ah lithium batteries will comfortably power a 12V compressor fridge, a CPAP for 8 hours, and still have headroom for lights, fans, and charging electronics.
In good sunlight, that 400W kit can deliver 120–140Ah per day with its MPPT controller maximizing efficiency. If you're dry camping off-grid, this is a nice sweet spot for performance and value. Do you have any other electronics you plan to run?
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Product Page this Question was Asked From
Rich Solar RV Solar Charging Kit w/ 2 Panels - 12V - 400 Watts
- RV Solar Panels
- Roof Mounted Solar Kit
- Rigid Panels
- 201 - 400 Watts
- 10.1 Amps or More
- AGM
- Gel
- Lead Acid
- Lithium
- Expandable
- MPPT
- 2 Panels
- Rich Solar
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Nick
7/8/2025
What if I have furrion port and have a single 100 watt panel now? If I want to expand my system later with another 200-watt panel, can I still use the Furrion port, or would I need to wire directly to the controller or battery with a kit like this instead?