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Complete 400 Watt Solar Panel Kit with VertaMax Power Inverter for 12 Volt Battery Systems
SKU: SOK-400WPI-15
42 lbs


Perfect for RV’s, boats and other off grid applications

WindyNation takes the trouble and confusion out of adding a solar panel system to a battery bank with our 100% Complete Off-Grid Solar Kits!

  • Auxiliary power for RV’s and boats. Popular with commercial RV and marine retrofitters
  • Great for camping or remote cabins. Power devices in remote back country locations
  • Easy way to provide power for sheds, light poles and gates without the need for trenching and laying cables
  • Two or more panels can provide back-up power for critical appliances like a refrigerator during a power outage
  • Kit will produce an average of 1600 Watt Hours (Wh) or 135 Amp Hours (Ah) of charge per day (depends on sunlight availability)


Click on the Technical Specifications tab above for detailed information about the products included in this kit

Kit Includes

(4 pc) 100 Watt WindyNation 12 volt Polycrystalline WindyNation Solar Panel

  • Four panels are perfect for 12 or 24 Volt battery bank charging
  • Windynation's 100 Watt Solar Panel combines high efficiency with long term reliability and stability
  • Outstanding electrical performance under high temperature and low irradiance conditions
  • See image in the photo gallery above for the technical specifications of the solar panel.
  • Note:Wiring diagrams for wiring the four solar panels in parallel (12V) are shown in the owners manual


(1 pc) 30 Amp P30L Solar Charge Controller

  • Prevents battery from being overcharged and damaged by the solar panel
  • User adjustable settings with LCD Display
  • Battery Temperature Sensor included
  • Overload, short circuit, and reverse polarity protected


(4 Sets) Solar Panel Mounting Bracket and Fastener Set

  • Includes 16 anodized aluminum Z-brackets and four sets of stainless steel fasteners
  • Quickly and easily mount the solar panel to a RV, boat or roof
  • Corrosion resistant materials (anodized aluminum and stainless steel)


Solar Panel Cable and Solar Connectors

  • 40 continuous feet of UL Listed 12 AWG solar extension cable (E331483)
  • One Pair of Solar Connectors
  • The solar connectors allow for a quick and waterproof connection of the solar extension cable to the solar connectors attached to the back of the solar panel.

(Note: Solar Connectors do not come pre-attached to cable. Cut cable to length and attach Solar Connectors. The 12 AWG cable is used to connect the solar panels to the charge controller.)


Solar Branch Connectors

  • Three Pairs of Solar Branch Connectors
  • The solar branch connectors are used to wire the two solar panels in parallel for 12V battery charging. For 24V battery charging they will not be used
  • Wiring diagram for both 12V and 24V are shown in the Owners manual


1500 Watt (3000 Watt Surge) VertaMax Power Inverter

Please Note: The drop-down tab above will allow you to upgrade to the VertaMax 3000W Inverter for larger AC power requirements.  Detailed specifications for the 3000W VertaMax Inverter are available in the Owners Manual and can be viewed by clicking here

Input Voltage (Nominal) 12VDC  Output Voltage (Nominal) 120VAC




Continuous Rated Power

1500 Watts


Peak Surge Power

3000 Watts


Input Voltage (Nominal)

12 – 13 VDC

Input Voltage (Min – Max)

11 – 15VDC

Output Voltage (Nominal)


Output Frequency (Nominal)

60 Hz

Output Waveform

Modified Sine Wave

Standby Current



Low Battery Voltage Alarm

10.5 VDC (+/-0.3VDC)

Low Battery Voltage Shutdown

10.0 VDC (+/-0.3VDC)

High Battery Voltage Shutdown

16 VDC (+/-0.5VDC)



Physical Specifications





Dimension (L x W x H)

13.0” x 8.7” x 3.0”

(330mm x 221mm x 76mm)


Unit Weight

8.2 lb. (3.7kg)



Auto Powered Fan

Operating Temperature

0oC to 60oC

Storage Temperature

-25oC to 70oC

Operating Humidity

20 to 80% relative humidity (non­condensing)

Thermal Protection


Inverter Safety Features


Low Voltage Shutdown Battery Protection

Automatic Overload Protection

Short Circuit Protection

High Temperature Protection

Load and Thermally Activated Cooling Fans

Fault Indication and Internally Fused


Inverter Remote On/Off Switch (optional add-on item that can be added using the drop-down tab above)

  • Allows user to remotely turn the inverter off and on (convenient if the inverter is located in a difficult to access location)
  • Remote Swtich extension cord is 16.5 feet in length


Inverter Battery Cables 

  • Used to connect the inverter to the 12 volt battery. Capable of carrying high current.
  • One red 2 gauge cable 3 feet in length + one black 2 gauge cable 3 feet in length with pre-attached cable lugs (If you upgrade to the 3000W VertaMax Inverter you will receive thicker, 1/0 cable to handle the higher current)



Additional Information

Power Consumption of Common AC Appliances

Appliance Watts
Stereo 200
Fan 200
Small Refrigerator 350
Light Bulb 100W 100
Microwave 1000W 1000
AC (5,000 BTU) 700
Computer 300
Hair Dryer 1000
Coffee Maker 1200
Blender 400


Click on the Owners Manual tab above for detailed information about the products included in this kit

Everything you need for assembling our 100 Watt Solar Panel Complete Kit for RVs, Boats and Off-Grid systems is available in our Owner's Manual Detailed specifications and instructions for the VertaMax Power Inverter can be viewed by clicking here