The ROCKSOLAR 3500W 48V Off-Grid Solar System offers the most comprehensive power solution yet for US cottage/rv owners. It boasts reliability and high efficiency, providing off-grid power at your convenience. The system consists of 2x 48V 50AH LiFePO4 Batteries, 6x 440W Rigid Solar Panels, and a potent 3.5KW Off-Grid Solar Inverter. It is designed to power a wide array of appliances including a mini fridge, freezer, LCD TV, wifi router, coffee machine, microwave, lighting, stereo, laptop, and phone chargers, ensuring a 24/7 off-grid power supply for all your cottage needs. The ROCKSOLAR Cottage Life Series V comes with a future-focused design that allows easy upgrades for increased power needs, providing free upgrade services and exchangeable key components. ROCKSOLAR guarantees the value retention of all components, making sure your investment is worthwhile. The batteries and solar panels come with a reassuring 10-year warranty, while the other components carry a 2-years warranty. Embrace a worry-free cottage life with the ROCKSOLAR Cottage Life Series V Off-Grid Solar System.

Product Features

ROCKSOLAR 48V 50Ah Deep Cycle LiFePO4 Battery with BMS System (2 pcs):

• 48V 50AH capacity
• 3500+ cycle life with 100% discharge rate for ultra-long service life
• Steady power: Flat voltage curve for consistent power output, no significant drop like traditional SLA batteries
• Utilizes advanced LiFePO4 Battery Technology for dependable deep cycling
• Smart Battery Management System for safety and longevity
• Lightweight: Only 53 lbs. for easy portability and installation
• Suitable for harsh environments: Built-in BMS provides protection against temperature fluctuations, short circuits, over-discharge, over-current, and overcharge, and ensures battery cell balancing.
• Operating temperature range for charging: 0C∽45C, discharging: -20~-60.
• BMS auto-shuts off the battery outside the working temperature.
  
• Warranty: 10-year warranty and 10+ year service life

440W  Bifacial Rigid Monocrystalline Solar Panel (6 Pcs):

• 440W output (each)
• Philadelphia Solar  BifacialSolar Panel
• Waterproof and Corrosion-Resistant Aluminum Alloy Frame
• High-Efficiency Solar Cell with 22.57% Conversion Efficiency
• Pre-drilled holes for easy mounting and securing to any surface

Growatt 3.5KW Off-Grid Solar Inverter:

• Integrated MPPT: Features an advanced MPPT charge controller for maximum solar energy efficiency.
• Battery Versatility: Operates with or without a battery, providing flexible energy solutions.
• High PV Input: Accepts up to 280VDC of PV input, allowing for a wide range of solar panel options.
• Generator Ready: Equipped with a generator connection for additional power options.
• Expandable Power: Supports parallel operation for capacity expansion up to 21kW.
• Smart Monitoring: Optional WIFI/GPRS remote monitoring for convenient system management.
• Priority Configuration: Configurable grid or solar input priority to optimize energy use.
• Quick Transfer: Transfer time is 10ms typical, ensuring minimal interruption during power source changeover.
• Durable Construction: Designed to operate within a wide temperature range for various environments.
• Comprehensive Warranty: Comes with a 2-year warranty for peace of mind and reliability.