Does the Mars Solar System Have a Warranty?

• A solar power system warranty from Mars Solar covers each component separately. Understanding what's included helps you plan for long-term ownership and avoid unexpected replacement costs.
• Warranty Periods:
• Solar panels: 25-year linear power output warranty. After 25 years, panels still produce at least 80% of rated output. This is the industry standard for Tier-1 manufacturers.
• Hybrid inverter: 2-year manufacturer warranty covering defects in materials and workmanship under normal use conditions.
• Lithium battery (LiFePO4):10years warranty.20years design lifespan. The batteries themselves are rated for 6,000+ cycles, but the warranty term is 2 years for the BMS and supporting electronics.
• What's Not Covered
  Lightning strikes are excluded—we strongly recommend installing surge protection devices on all solar power system installations. Physical damage from impact, improper installation, unauthorized modifications, and Acts of God are not covered. Full terms are published in your order documentation and available in PDF format.
• How to File a Claim
  Filing a solar power system warranty claim is straightforward. Contact us via email (info@marssolargroup.com) or WhatsApp (+86-15302966051) with your order number, photos or videos of the issue, and installation date. Most issues are diagnosed within 48 hours—many can be resolved remotely by adjusting settings or firmware.If a replacement is needed, we ship within 5 business days. You return the defective unit within 30 days; we cover one-way shipping for valid claims. Keep your order confirmation and installation photos—this significantly speeds up the claim process.