If you spend a lot of time on the road, a power bank is a must-have for your backpack. These battery packs will make sure all of your gadgets stay refilled and end the nightmare of a flashing red power light just when you need to send an important email. There are loads of options to choose from, but one top choice for energy on the move is the Anker 737 Power Bank, which not only boosts phones but can also pump power back into laptops as well.

In fact, with three ports (2 USB-C and 1 USB-A), it can actually refill a trio of devices at the same time. It even includes a mini display that shows exactly how fast things are being boosted and if things are safe and not overheating.

Anker also promises refilling at rapid speeds, with an iPhone going from 0 to 50 per cent in just 26 minutes.

There’s a lot going on inside this accessory, and that means it’s not cheap to buy, with Amazon usually offering this power pack for £119.99.

Luckily, thanks to a limited-time sale event, that cost has been cut to just £69.97.

Of course, there are cheaper options, but this Anker accessory does offer a premium experience.

Here are some other options if £69.97 sounds a bit expensive.

Anker 10,000mAh Nano charger at Argos
FEATURES: Includes enough power to refill two smartphones and gets a built-in USB-C cable for easy charging
NOW £29.99 – SAVE £10
SEE THE DEAL

Samsung 20000mAh Portable Power Bank at Argos
FEATURES: A huge 20,000mAh battery and Triple Port technology that allows simultaneous charging of three devices
NOW £40.59 – LOWEST ARGOS PRICE
SEE THE DEAL

Anker MagGo Power Bank at Amazon
FEATURES: A MagSafe connection for improved charging and a kickstand.
NOW: £58.99 – WAS £89.99
SEE THE DEAL