Why your solar-powered power bank isn't as reliable as you think (and what to use instead)
Last summer, I tested a slew of solar-powered power banks. It turned out the devices were universally rubbish and potentially unsafe. Here's what I suggest using instead.
Last summer, I tested a slew of solar-powered power banks. It turned out the devices were universally rubbish and potentially unsafe. Here's what I suggest using instead.
