Portable batteries are useful for keeping your seemingly perpetually parched phone powered up, but many of them come in heavy, bulky packages, making the whole point of being "portable" useless.

For a more lightweight alternative, the Fast Mag Wireless iPhone Charger is a wireless charger built for folks constantly on the move. It doesn't require to be held separately, sticking securely to your phone for hassle-free charging. TMZ readers can get it on sale for 59% off.

With a built-in magnet and metal plate, this charger won't slide off, providing a snappy way to refuel your phone. But, what makes it truly impressive is its fast charging capabilities, as it's engineered to get your phone to 100% battery in as fast as 30 minutes. It also has built-in safeguards to avoid overcharging, keeping your phone safe.

The Fast Mag can accommodate the iPhone 12 and after, but also supports other Qi-enabled wireless devices. There's even an option to charge through the USB port, should you wish to power your phone the old school way.

Formerly retailing for $119, you can grab the Fast Mag on sale for just $48.99. That's a 59% discount exclusive to TMZ readers for a limited time.

Prices subject to change.