This is a crucial product for anyone that has a wireless controller and is the cheapest alternative to playing without wires.
Currently the next cheapest method is about £12 with the plug and charge but for one, it's more expensive and 2, it elliminates the whole point of wireless controller.
The next cheapest method is the Quick Charge kit, which is practically same machine but it actually costs almost double the price currently at £15.
This also comes with a battery, which is about £7-£8 on it's own, so the charger comes for practically free.
It's currently at £7.99 including free delivery and has a retail price of £14.99, so it's a great discount for a new product.
Rechargeable battery for the Xbox 360 wireless controller.
Saves money by eliminating the need for costly disposable batteries.
Individual charger for charging the additional battery whilst using the wireless controller.
Don't forget to go through Quidco to receive 4% cashback, making it £7.67 all inclusive and hope this helps. :)