Plus, I put the Bluetti EB70 and PV200 solar panel to the test onboard. Can they keep up with life at sea? Volcano warning after 160 earthquakes in just two hours Ranking All-You-Can-Eat Chain ...

But Bluetti has come up with a solution that combines both. It's the Bluetti Handsfree and, on the face of it, it looks like a rather bulky backpack - but a secret lies within. A big secret.