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Goal Zero Guardian 12V Charge Controller

Controller/solar interface for trickle-charging 12-volt batteries

Item #: 79714002

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Original Price: $39.99

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Dependable charging for your 12-volt batteries

Goal Zero Guardian 12V Charge Controller

Use the Guardian Charge Controller with one or more Goal Zero solar panels (not included).

Keep all your 12-volt batteries charged and ready for action. The Guardian 12V Charge Controller provides an easy way to harness the sun's power to trickle-charge 12-volt batteries for a car or truck, motorcycle, lawnmower, etc.

The Guardian works hand in hand with one or more of Goal Zero's compact solar panels, like the Nomad 13, Boulder 15, or Escape 30. The Guardian controls the charge to your battery, and guards against overcharging that can damage the battery. It's a smart way to maintain your batteries when not in use.

You can connect a single solar panel to the Guardian, or hook up two panels at the same time for quicker battery-charging. Just use the supplied cable with alligator clips to connect to your 12V battery, then connect the Guardian to your solar panel(s) and place in the sun.

Who is Goal Zero?

Goal Zero is a Utah-based innovator of portable solar solutions that can power a variety of USB, 12-volt, and AC devices wherever and whenever you need them. Field-proven in some of the most remote places on Earth, Goal Zero products add an eco-friendly measure of convenience, comfort and safety to any outdoor adventure.

Product Highlights:

  • 12-volt recharger for use with one or more Goal Zero solar panels
  • rugged, weather-resistant design — optimal operating temp. 32-104° F
  • easy, reliable way to trickle-charge, recharge and maintain 12V batteries for cars, motorcycles, lawnmowers, etc.
  • supports up to 150W of solar panels
  • 8mm and 4.7mm input ports for connecting to solar panel(s)
  • 12V output port for battery charging
  • includes a cable with a pair of alligator clips for connecting to your battery
  • 4-7/8"W x 2-3/8"H x 1"D
  • weight: 6.4 oz. including alligator clips
  • warranty: 1 year
  • Our 60-day money-back guarantee

Goal Zero Guardian 12V Charge Controller Reviews

Hands-on research

What's in the box?

Download owner's manual

  • Guardian 12v Charge Controller
  • 25" Alligator clip cable (+/-)
  • User guide

Product Research


Overview: The Guardian 12v controls the voltage output for charging a 12 volt battery from a GoalZero solar panel (or multiple solar panels). It has both 8mm and 4.7mm inputs, so it's compatible with current and legacy solar panels. One LED on the Guardian 12v indicates the solar panel is connected. Another LED shows the battery's charge level, so the Guardian 12v can also be used to test the battery.


  • Inputs: supports up to 150 watts of solar panels
    • 8mm Port: 15-16 volts/0-10 amps (150 watts max)
    • 4.7mm Port: 15-16 volts/0-10 amps (150 watts max)
  • Output: 11-14 volts/0-10 amps (120 watts max)
  • Weight: 0.4/6.4 oz (including output cables)
  • Optimal Operating Temperature Range: 32°-104° F
  • Dimensions:
    • Width: 4-7/8" (without cables connected)
    • Height: 1"
    • Depth: 2-3/8"

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