Goal Zero Guardian 12V Charge Controller

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

  • Goal Zero Guardian 12V Charge Controller


  • Goal Zero Guardian 12V Charge Controller

    Keep batteries charged up when not in use

  • Goal Zero Guardian 12V Charge Controller

    Use the Guardian with a Goal Zero solar panel like the Boulder 15

Item #: 79714002
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Our take on the Goal Zero Guardian 12V Charge Controller

by Steve Kindig
Goal Zero

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.

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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.


  • 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

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

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

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


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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Add accessories for the Goal Zero Guardian 12V Charge Controller

Goal Zero Escape 30 Solar Panel Briefcase-sized 30-watt solar panel
Your Price: $239.99
Add to Cart
Goal Zero Boulder 15 Solar Panel Lightweight 15-watt solar panel
Your Price: $124.99
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Goal Zero Nomad 13 Solar Panel Compact, foldable 13-watt solar panel
Your Price: $159.99
Add to Cart

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For a more in-depth review and enhanced detailed information on the Goal Zero Guardian 12V Charge Controller, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_79714002/Goal-Zero-Guardian-12V-Charge-Controller.html ).