ROCKSOLAR 40A MPPT Solar Charge Controller

ROCKSOLAR 40A MPPT Solar Charge Controller

What's included: Controller, user manual

Key specs:

• Rated charge current: 40A | Max PV input: 100V DC
• Max PV power: 520W (12V system) / 1,040W (24V system)
• MPPT tracking efficiency: 99.5%
• Battery voltage range: 8–32V | Auto 12V/24V detection
• Protection rating: IP30

Battery compatibility: Lithium and lead-acid (AGM, gel, flooded, sealed)

Built for: Mid-size off-grid solar systems, RVs, cabins, boats, backup power setups with larger panel arrays

Key features:

• 99.5% MPPT efficiency = maximizes power harvest from your panels
• 3-stage charging (bulk, absorption, float) = extends battery life
• Higher 100V PV input (vs. 75V on the 20A/30A models) = supports longer panel strings, more wiring flexibility
• Light control voltage = automate lighting loads based on battery/solar state

• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
• If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.