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  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
  • off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva
off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva

off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva

  • 1 - 9 Sets
    $1,200
  • 10 - 49 Sets
    $1,180
  • >= 50 Sets
    $1,100

Customization:

Customized logo（Min.Order: 50000 pieces）
Customized packaging（Min.Order: 50000 pieces）
Graphic customization（Min.Order: 100000 pieces）
View product details

off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Off-Grid Power Supply: Delivers a 3.5 kW output via high-efficiency monocrystalline silicon solar panels, enabling independent energy generation for homes, businesses, or remote locations.
  • Hybrid Inverter Flexibility: Equipped with an MPPT controller and a hybrid inverter that supports grid-tied and off-grid modes, ensuring seamless power management and backup during outages.

Key features

  • 1. Material Technology: Monocrystalline Silicon Solar Panels

    • With high-efficiency monocrystalline silicon solar panels, capture up to 22% more sunlight compared to polycrystalline alternatives*, ensuring optimal energy generation even in low-light conditions.

  • 2. Interactive Design: Hybrid Inverter with Digital Display

    • With a user-friendly digital display on the hybrid inverter, monitor real-time energy output and seamlessly switch between off-grid and grid-tied modes for flexible power management.

  • 3. Performance Parameters: MPPT Controller for Enhanced Efficiency

    • With an MPPT (Maximum Power Point Tracking) controller, extract up to 30% more energy from solar panels compared to traditional PWM controllers*, maximizing energy capture under varying conditions.

  • 4. Scenario Solutions: Off-Grid Reliability for Remote Use

    • With a 3.5 kW power output and deep-cycle battery compatibility (lithium/lead-acid), power small homes, cabins, or businesses in off-grid locations while supporting continuous operation for critical loads.

  • 5. Certification Standards: Multi-National Compliance

    • With certifications like CE and EPR (France/Germany/Spain), meet stringent safety and environmental regulations for safe installation and responsible battery disposal*.

Product details

off Grid Solar System Complete Lead Acid 3000w 3.5kw 3500w Offfgrid Solar System 3kva

The Sunway 3.5kW off-grid solar system offers a reliable, customizable energy solution for remote or grid-independent applications. Featuring monocrystalline silicon panels, hybrid inverters, and deep-cycle batteries (lithium, lead-acid, or lithium-ion), this system ensures efficient power generation, storage, and distribution. Certified across Europe (EPR France/Germany/Spain, CE), it supports ground mounting and MPPT controllers for optimal performance.

Technical specifications

FeatureSpecificationBenefit
System Power3.5kW (3000W load capacity)Powers small homes/businesses with stable energy output.
Battery TypeLithium, Lead-Acid, Lithium-Ion (JFM12-200 series)Customizable energy storage for longevity (lithium) or cost-effectiveness.
Inverter TypeHybrid (supports off-grid and grid-tied operation)Flexible power management during grid outages or peak demand.
Solar PanelsMonocrystalline silicon, high-efficiency photovoltaic cellsMaximizes energy capture in low-light conditions.
ControllerMPPT (Maximum Power Point Tracking)25-30% more efficient energy conversion than traditional PWM controllers.
CertificationsCE, EPR France/Germany/Spain (Battery/Packing/WE EE)Ensures compliance with EU safety and environmental standards.
Mounting TypeGround mountingEasy installation in rural or uneven terrain.

Customization guide

Adjustable parameters:

  • Battery Type: Choose between lithium (longer lifespan), lead-acid (lower cost), or lithium-ion (high efficiency) to match budget and durability needs.
  • System Size: Scale power output (3.5kW base) by adding panels/batteries for larger energy demands.
  • Inverter Configuration: Optimize hybrid functionality for grid backup or full off-grid operation.

Get inspired

Power your cabin, farm, or small business with clean, uninterrupted energy. With a hybrid inverter and deep-cycle batteries, this system ensures reliability even during prolonged outages. For eco-conscious users, lithium batteries reduce environmental impact while maximizing efficiency.

Choose your model

ParameterBase Model (Lead-Acid)Advanced Model (Lithium-Ion)Pro Model (Premium Lithium)
Battery Lifespan3-5 years+50% (8-10 years)+100% (15+ years)*
Charge Efficiency80%+15% (92%)+30% (98%)
Weight50kg-20% (40kg)-40% (30kg)
Cold Weather Output60% capacity @ 0°C+25% (75%)+40% (85%)

Supplier's note

  1. Lithium Battery Breakthrough: The Pro Model’s lithium-ion chemistry delivers 15+ year lifespan and 98% charge efficiency, outperforming lead-acid by 30%.
  2. MPPT Controller Integration: All models use MPPT, enabling 25-30% higher energy capture than PWM systems, ideal for cloudy regions.
  3. Hybrid Flexibility: The Advanced Model’s inverter supports grid backup mode, reducing reliance on fossil fuels during blackouts.

Optimal Version Selection:

  • Base Model: Best for budget-conscious users in temperate climates needing short-term energy storage (e.g., seasonal cabins).
  • Advanced Model: Targets small businesses or farms requiring reliable, mid-term storage with moderate investment.
  • Pro Model: Ideal for heavy-duty applications (e.g., remote hospitals, data centers) needing long-term, low-maintenance power.

With the Pro Model’s 15-year battery lifespan, you can avoid frequent replacements and reduce long-term costs by 40%. Pair its -20°C operation with monocrystalline panels for uninterrupted power in extreme climates.

Frequently asked questions

  • Which 3.5kW off-grid solar system suits small homes or cabins?

  • How to maintain the lead-acid battery in an off-grid solar system?

  • Lead-acid vs. lithium battery: Which is better for off-grid solar systems?

  • Can the 3.5kW off-grid system be customized for higher power demands?

  • Is the Sunway off-grid solar system CE-certified for EU compliance?

  • What’s the advantage of an MPPT controller in off-grid solar systems?

  • How does the hybrid inverter ensure power stability in off-grid setups?

  • Is ground mounting included in the 3.5kW off-grid solar kit?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Battery TypeRemote/off-grid living, backup powerLead-Acid (300-500 cycles ▲2000 cycles Lithium) (IEC 61427)Advanced: 2000+ cycles lifespan (ideal for frequent use)
Base: Cost-effective for budget setups		Advanced: 2x higher cost
Base: Shorter lifespan (300-500 cycles)
Inverter TypeGrid-tied/off-grid hybrid systemsHybrid Inverter (Grid/Off-grid modes ▲MPPT Tracking) (IEC 61727)Supports seamless grid integration and energy storage
Advanced: Optimizes solar input via MPPT		Requires technical expertise for setup
Higher upfront cost for advanced models
Solar Panel EfficiencyRooftop/ground installationsMonocrystalline (22% Efficiency ▲22% in Advanced) (IEC 61215)22% efficiency (15% higher than polycrystalline)
Compact design saves space		No significant difference between tiers
Higher cost than polycrystalline
System Power OutputMedium-sized homes/businesses3.5 kW (▲30% above industry standard 3 kW) (IEC 61727)Powers 3-5 rooms + appliances
Advanced: Scales with modular expansion		Requires larger solar array/roof space
Higher installation complexity
Load CapacityHigh-power appliances (e.g., HVAC)3000W (▲20% vs industry 2500W) (IEC 61000-3-3)Supports AC units, refrigerators, and tools
Advanced: Handles surges without downtime		Overloading risks if not monitored
Requires robust wiring infrastructure
CertificationsEU/Global marketsCE + EPR Compliance (France/Spain/Germany) (▲Advanced meets 5+ regional standards)Wider market access
Advanced: Pre-qualified for EU waste/recycling laws		Certification costs increase with advanced tiers
Limited to certified regions

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