I was checking Phantom 4 accessories when I noticed that the Phantom 4 batteries were down from over £100 to just £86.50, brand new! These batteries aren't usually this cheap, so, best run with this price, asap.
To get this price, make sure Handtec are the selected sellers. It's only priority delivery, though. So, if you bought one today (Wednesday), you'd get it for Monday. Still, postage is free.