About the author

Tim Moss

Tim Moss has supported over 100 expeditions across all seven continents. He has climbed new mountains, crossed a desert on foot and recently cycled 13,000 miles around the world. He is a Fellow of the Royal Geographical Society London and a Guinness World Record Holder. He aims to encourage more people to live adventurously. Read more...


  1. 1


    Tim, the photos are still not displayed for me :(

    1. 1.1

      Tim Moss

      Sorry Ben. I’ve been away but will get them sorted tonight.

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  4. 2


    What is your take on the Anker 21 Powerport USB charger ? I am based out of the US and Anker products are quite popular here.

    1. 2.1

      Tim Moss

      Hi Trisk, I’ve not used the Anker 21. It looks like the right sort of design though (i.e. large surface area) with a small enough size and weight for carrying around. It’s cheap for a solar panel of that size and power which would normally ring alarm bells but they have so many good reviews on Amazon and elsewhere that I’d say for the price, it would probably be a pretty safe bet.

  5. 3

    Chester Richardson

    Hi Tim,

    Thanks for this informative posts.

    I need a travel charger that could power a laptop and had my eyes on the PowerGorilla. Now that you haven’t tested it yourself, I was just asking how effective a solar charger is. I have never used one myself and I always think it would take days to charge it fully especially when the sun isn’t shining very bright. In your opinion are solar chargers they more effective than power banks?

    1. 3.1

      Tim Moss

      Hi Chester,

      Thanks for the comment.

      The first thing to highlight is that, even if you have a solar panel, I would recommend using a separate battery from your laptop. In other words, don’t plug the solar panel into your laptop, plug it into a separate battery.

      The power generated from a solar panel fluctuates significantly (e.g. when the sun goes behind a cloud). It can’t usually be relied upon to ‘run’ a laptop and can even end up draining a device’s battery. As such, you would probably want to carry both a solar panel and a power bank.

      You mentioned the PowerGorilla (power pack) so, in your case, that would mean also getting the SolarGorilla (solar panel).

      As you said, I’ve not tried those products myself. However, I suspect it would take a very long time to fully charge the PowerGorilla using the SolarGorilla panel. If you were at a static camp in a desert, then I could imagine it might charge in a day. If you were moving around and anywhere that wasn’t sunny all day, I am not sure it would be worth it.

      Best of luck with it.


      P.S. I notice that you’ve linked to your ‘Gadget Reviews’ website. Do let me know if you end up reviewing any of these gadgets yourself.

      1. 3.1.1

        Chester Richardson

        Sure enough Tim.

        If I buy or review the device, I’ll let you know immediately.


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