Click on the battery chart on the top and post a screen
Raise a replacement request on amazon before time runs out.Not sure if this is what you were looking for but got this screen shot
View attachment 15844
Also 1 more update - spoke to a different Tech Support Exec yesterday. He asked me to wipe the data and cache and check if the same issue happens. So I did that yesterday and charged it completely. But again the phone lost 9% battery overnight (in 10 hours) with all the app permissions denied, no apps on wake mode, no cell signal as I still haven't inserted sims, no WiFi, Bluetooth & all. I called and told the same to the Tech Support. They asked me to visit the Service Centre. Before I go the Service Centre I just want to confirm with owners of OnePlus 2 in the forum that this is not a normal behaviour.
Get money back.^^ I have had that call with Amazon. They said there is no replacement - only refund since I don't have an invite, I cant get another handset. I bought it on open sale. So is it a good idea to get the money back or go to the Service Centre and get the handset checked out?
If it's a hardware problem then it's better to get a refund than risk having to visit their service centers, the OP forum is full of horror stories about service centers.10 minute to root and install betterbatterystats/wakelock detector and resolve it yourself to avoid hassle. BTW Oneplus is open to people rooting their device.