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Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3

Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3

4.2(12 ratings)

Best price now

$1,508.00at Elegant Home USAChecked 3 h ago

25% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $1,508.00 at Elegant Home USA (checked Nov 14, 2026).
  • Checked at 3 stores.

Our take on the Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3

A complete off-grid power kit built around a 3000W pure sine wave inverter, a 12V LiFePO4 battery and 600W of monocrystalline solar panels. The 60A MPPT controller tracks at over 99% efficiency, and the inverter handles a 9000W surge for 20 seconds to start motors and compressors. It suits cabins, sheds, RVs and backup setups where grid power is absent or unreliable. Against rivals, the pure sine output and LiFePO4 chemistry are the strong points; the 12V architecture means heavier cabling and lower efficiency than 24V or 48V systems at this power level.

Best forOff-grid cabins and shedsRV and van power systemsBackup power for outagesSmall well pumps and motor loads
Pros
  • Pure sine wave output runs sensitive electronics safely
  • 9000W surge for 20 seconds starts motors and compressors
  • LiFePO4 battery lasts far longer than lead-acid
  • 60A MPPT controller with over 99% tracking efficiency
  • Monocrystalline panels produce well in low light
Cons
  • 12V system at 3000W draws very high current and needs thick cables
  • 600W of solar is modest for a 3000W inverter
  • LiFePO4 needs above-freezing charging temperatures
  • Kit assembly and wiring take real electrical know-how

Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3 prices at every store

  • Elegant Home USANew

    In stock

    $1,508.00Checked 3 h ago
    Visit Elegant Home USA
  • Solar Guys ProNew

    In stock

    $2,005.45Checked 3 h ago
    Visit Solar Guys Pro
  • Sungoldpower OfficialNew

    In stock

    $2,111.00Checked 3 h ago
    Visit Sungoldpower Official

Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3 price history

Lowest price we've seen: $1,508.00 on Nov 14 at Elegant Home USA. Tracked across 3 stores since Nov 14.

What reviewers say

  • 4.2 / 512 ratings

Rated 4.2 from 12 ratings, buyers generally report the kit works as a self-contained off-grid system and praise the pure sine output and battery. Complaints center on the 12V wiring demands and the limited solar input for the inverter size.

What people mention
  • Output qualityPraisedOwners say the pure sine wave output runs electronics without issues.
  • BatteryPraisedBuyers like the LiFePO4 battery's capacity and lifespan.
  • WiringCriticisedThe 12V design means very high current and thick, costly cables.
  • Solar inputMixedSome find 600W of panels modest for a 3000W inverter.

About the Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3

This off-grid solar kit pairs a 3000W pure sine wave inverter with a 60A MPPT solar charge controller. It runs on a 12V DC input and outputs 120V AC at 60Hz. The inverter has a surge rating of 9000W for 20 seconds.

The kit includes a 100W monocrystalline solar panel with a 22.1V open circuit voltage. The MPPT controller has a tracking efficiency above 99%. The system can be powered by solar or battery, and the AC charger draws 90 +/- 5A.

Inverter power
3000W continuous, 9000W surge for 20 seconds
Inverter type
Pure sine wave
Input voltage
12V DC
Output
120V AC, 60Hz
Charge controller
60A MPPT
MPPT efficiency
>99%
AC charger current
90 +/- 5A
Power source
Solar, battery
Solar panel
100W monocrystalline
Panel voltage
22.1V open circuit (VOC)
Panel dimensions
38.2 x 21.3 x 1.2 inches
Panel weight
13 lb

Specifications

Conversion Efficiency
>99% (MPPT Tracing efficiency)
MPPT
Yes
Solar Panel Wattage
100 Watt
Solar Panel Type
Monocrystalline
Solar Panel Voltage
22.1V (Open Circuit Voltage(VOC))
Solar Panel Dimensions
38.2 X 21.3 X 1.2 inch
Solar Panel Weight
13LB

Questions and answers

What can a 3000W inverter run?
It runs most household appliances, power tools and small pumps, and the 9000W surge covers motor startup. Heavy loads like air conditioners or water heaters need more capacity.
Is the battery included?
Yes. The kit includes a 12V LiFePO4 battery, a 60A MPPT charge controller, 600W of monocrystalline panels and the 3000W inverter.
Can I add more solar panels?
The 60A MPPT controller has headroom for more panel wattage, so you can expand the array. Stay within the controller's voltage and current limits.
Does it work in cold weather?
The panels and inverter handle cold fine, but LiFePO4 batteries should not be charged below freezing. Keep the battery in a heated or insulated space.
Is it hard to install?
It is a full wiring job: panels, controller, battery and inverter must be connected with correctly sized cables. Plan on an electrician or solid DIY experience.
Where is the Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3 cheapest?
At Elegant Home USA, for $1,508.00, 25% under what the other stores charge, as of our latest check.
What do buyers say about the Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3?
Rated 4.2 out of 5 from 12 ratings.
Where can I buy the Off Grid Solar Kit 3000W Inverter 12VDC 120V Output LiFePO4 Battery 600W Solar Backup SGK-PRO3?
3 stores we checked sell it, including Elegant Home USA, Solar Guys Pro, Sungoldpower Official.

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Inverter Output Voltage
120V AC
Inverter Type
Pure sine wave
Inverter Output Frequency
60HZ
Inverter Output Waveform
Pure sine wave
Voltage
120V AC (Output)
Wattage
3000W (Inverter)
Amperage
60A (Mppt Solar Charge Controller)
Electrical Current
90+/- 5A (AC Charger)
Electrical Efficiency
>99% (MPPT Tracing efficiency)
Frequency
60HZ (AC Output)
Input Voltage
12V DC
Power Rating
3000W (Inverter)
Power Amperage
60A (Mppt Solar Charge Controller)
Power Capacity
3000W (Inverter)
Power Source
Solar, Battery
Surge Rating
9000W (20 Seconds)
Kit Included Items
60A Mppt Solar Charge Controller
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