Planning a full system? Try our Solar System Sizer to estimate the panels, battery and inverter you need.

Talk to a person

Not sure what size system you need?

Tell us about your project and we will help you compare the options.

Overview

Ten MEGA 250W panels, two NOVA 6500W 48V off-grid inverters and two ALPHA 5 PRO batteries (10.24kWh). Running the two inverters together gives 240VAC for heavier appliances. Extension cables, 15 Z-brackets and a PV quick disconnect are in the kit.

Who it's for

Cabins, tiny homes and remote sites that need 240V but are starting with a smaller panel array. Try the Solar System Sizer to check your loads.

Key specs at a glance

  • Panels: 10 x MEGA 250W monocrystalline (RS-M250), 2,500W total
  • Inverters: 2 x NOVA 6500W 48V off-grid (H6548S), 13,000VA surge, 91% peak efficiency, Wi-Fi
  • Batteries: 2 x ALPHA 5 PRO 51.2V 100Ah (5.12kWh each), 10.24kWh total, UL1973 and UL9540A
  • Expansion: up to 15 batteries in parallel
  • Warranty: panels 25-year output and 10-year workmanship, batteries 10 years, inverters 3 years

Common questions

Why two inverters?
The pair gives 240VAC output. For 120V only, see the single-inverter version of this kit.

What mounting parts are included?
15 Z-brackets, two 30ft and two 10ft 10AWG extension cables, and one PV quick disconnect.

Can I add batteries later?
Yes, up to 15 in parallel.


Key Features

  • Complete 2500W off-grid solar system with dual 6500W inverters for 240VAC output
  • High-performance MEGA 250W monocrystalline panels with AR coating and 16-busbar cells
  • Long-lasting LiFePO4 batteries with advanced BMS and 10-year warranty
  • Expandable battery system – parallel up to 15 units
  • Smart hybrid inverters with Wi-Fi monitoring, generator support, and safety protections
  • Designed for cabins, RVs, tiny homes, and remote installations
  • Ready-to-install kit with all cables, brackets, and disconnect switch included
  • Durable and weather-resistant components

Kit Contents

Component Specifications

MEGA 250W Monocrystalline Solar Panel (x10)

Model: RS-M250
Wattage Per Panel: 250W
Total System Wattage: 2500W
Maximum Power Voltage (Vmp): 18.9V
Maximum Power Current (Imp): 13.2A
Open Circuit Voltage (Voc): 22.8V
Short Circuit Current (Isc): 13.7A
Maximum System Voltage: 1500VDC
Dimensions: 60.6 x 29.9 x 1.2 in
Weight: 26.9 lb | Warranty: 25-year output / 10-year workmanship

ALPHA 5 PRO 51.2V 100Ah LiFePO4 Lithium Battery (x2)

Nominal Voltage: 51.2V | Capacity: 100Ah (5120Wh)
Life Cycle: 7,000 Cycles
Max Charge/Discharge Current: 100A
Expansion: Parallel up to 15 units
Certifications: UL1973, UL9540A, FCC
Battery Dimensions: 17.7 x 17.8 x 5.2 in | Weight: 99.2 lb
Server Rack Dimensions: 27.5 x 27.5 x 44.1 in | Weight: 196.2 lb
Operating Temp: -4°F ~ 149°F | Storage Temp: -4°F ~ 113°F
Communication: RS485 / RS232 / CAN
Battery Management System: Overcharge, over-discharge, short circuit protection
Warranty: 10 Years
Certifications: UL1973, UL9540A, FCC

NOVA 6500W 48V Off-Grid Hybrid Inverters (x2)

Model: RS-H6548S | Rated Power: 6500W each | Parallel Operation: Yes, up to 6 units
Input Voltage: 120 VAC | Selectable Range: 80–140 VAC | Frequency: 50/60 Hz
Output: Pure Sine Wave | Surge Power: 13,000VA
Efficiency (Peak): 91% | Transfer Time: 10–20 ms
Battery Voltage: 48VDC | Float Charging Voltage: 54VDC | Overcharge Protection: 66VDC
Solar Charger Type: MPPT | Max PV Array Power: 8000W | MPPT Voltage: 90–230VDC
Max Solar Charge Current: 120A | Max AC Charge Current: 120A
Communication: USB / RS232 / RS485 / Wi-Fi
Dimensions: 6.2 x 19.8 x 20.9 in | Weight: 44 lb each
Operating Temp: 14°F ~ 104°F
Warranty: 3 Years | UL Certified

Documents

⚠️ California Proposition 65 Warning: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Customers also browsed

    • Free standard shipping

      On orders shipped within the continental U.S. See shipping policy

    • 30-day returns

      A 25% restocking fee applies only to change-of-mind returns. See return policy

    • Questions? Ask us

      Chat, email or phone, Monday to Friday, 9 AM to 6 PM Eastern. Contact us

    • Secure checkout

      Payments go through Shopify's encrypted checkout. See privacy policy