Skip to content Image: Simon Jary Many of us are quite used to carrying around a handy power bank to top up our iPhone batteries during a long day away from a power socket, but these pocketable battery packs are usually not powerful enough to keep an unplugged and energy-hungry MacBook going all day. We’ve rounded up the best portable laptop power banks with battery capacities high enough to recharge a fading Apple MacBook if you won’t be able to plug it into an electrical outlet for some ti...