Smartphones have become a vital part of modern life. And as we spend more time on these gadgets, the likelihood of needing to recharge them while on the go increases. When your phone’s juice runs out and you’re nowhere near your charger, a public charging kiosk can look pretty promising.

One of the top considerations in choosing where to work with your laptop is the availability of a power socket. If you are not lucky enough to find an available outlet, you’ll have to depend on your laptop’s battery — assuming it still has enough power after your last charge.