Ahead of the impending launch of the Samsung Galaxy S7 a whole host of accessories have leaked including a wireless charging battery case called the Backpack Case.

The leaks show off the official Samsung cases that will be available for the Galaxy S7 and Galaxy S7 edge. The usual S View cases will of course be making appearances as well as the newer Clearview cases. But it's the LED, keyboard and battery cases that caught our eye.

Firstly there's the LED case. This is described as having a flip cover which allows the phone's LED alerts to be seen clearly. This should make for at-a-glance notifications without the need to open the case or power up the screen.

The second interesting new case is the Backpack case. This features a 2,700mAh battery which is able to wirelessly fast charge the smartphone. Apple also launched an official battery case not too long ago.

Also there should be a case, which allows for a detachable keyboard for use with the smartphone. This will likely be backwards compatible for the S6 models too, according to Winfuture, which leaked the cases.

The S7 S View cases will be €50, LED will be €70, Keyboard will be €70 and Backpack will be €90.

Expect Samsung to launch the Galaxy S7 and Galaxy S7 edge from Mobile World Congress at its Unpacked event on 21 February where these cases should also be officially announced.

READ: Samsung Galaxy S7, S7 edge, S7 edge plus: What's the story so far?