Anyone who spends a ton of time at the wheel of a car likely knows that nothing kills a phone’s battery more quickly than using Waze or Google Maps for navigation. Having a USB charger in the car can be a big deal when you need to keep your phone up and running for longer. Right now Amazon has you covered, with the RAVPower 36W car quick charger available for just $7 when you enter a special discount code.

This in-car charger would normally set you back around $10, so a 30% saving isn’t one to be sniffed at. We don’t know how long that price will be on offer, so make sure to take advantage of it while you still can. If you’re using your car’s built-in USB ports, you’re probably charging really slowly. This charger will fix that.

Buy: RAVPower 36W Car Quick Charger from Amazon: $7 with code IV5FH78O | Original price: $10

As if charging everything as quickly as possible thanks to Quick Charge 3.0 technology wasn’t enough, this in-car charger also has two USB-A ports. That enables charging of two devices at the same time, which isn’t something you’re going to be doing with the single USB port most cars have.

Don’t let us convince you how useful this charger could be, though. It currently has almost 400 reviews on Amazon with a score of 4.7 stars. That’s a hugely impressive score, out of a possible five stars, and it isn’t something most products manage.

All you need to do is remember to enter the discount code when you’re checking out and you’ll get the new price when payig.

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