TEST #1: Suntactics sCharger-5 Vs. Goal Zero nomad 7

Trying to find the right portable solar charger is tough, there are hundreds of solar chargers on the market to choose from, but there is just no way of knowing which one is the fastest in solar charging smartphones and tablets.

Most of the popular solar chargers on the market come from Goal Zero, but many are finding out about Suntactics and how much faster, lighter, and smaller Suntactics solar panels are compared to the most popular solar chargers online.

As you will see in the video, we will put our solar charger to the test against another similar sized, similar wattage solar panel. Today we will be testing our 5-Watt panel; the sCharger-5 against Goal Zero’s 7 Watt panel; Nomad 7.

You will see that we hooked up both panels to a Volt Meter to test the current in the same outdoor environment, charging a standard iPhone. I would like to remind you that iPhones have a cap on how much energy goes into the phone, which is 1 Amp (or 1000mAh) which is the exact amount of power that is needed for the phone to charge correctly.

Goal Zero Nomad 7 Specifications

Output Power: “5 Watts / 5 Volts = 1A (1000mA)”

Cell Type: Monocrystalline

Weight: 13.3oz

Size: 9 x 19 in

Test Results: ~454mA


Suntactics sCharger-5 Specifications

Output Power: 5 Watts / 5 Volts = 1 Amp (1000mA)

Cell Type: Monocrystalline

Weight: 8.4 oz

Size: 6 x 11.5 in

Test Results: ~1000mA



In our own testing we have found that the specifications of the Goal Zero Nomad 7 just don’t match up with what the meter is putting out. The Nomad 7 output current was approximately 454mA give or take a few milliamps.

I’ll remind you that we tested both panels a few seconds apart from each other, in direct sunlight with cloudless conditions, and both were plugged into the same iPhone and volt meter devices. Perhaps we tested a faulty Nomad 7?

Our sCharger-5 put out the exact amount we say it does; 5 Watts / 5 Volts = 1 Amp.. and indeed it gave us just that; approximately 1000mA!

We would also like to point out that the sCharger-5 is 4.9 oz lighter and 3 x 7.5 inches smaller than the Goal Zero Nomad 7, which is a big deal to those long distance trail hikers who need something compact and light weight.

What would you like us to test next?

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