Just a heads up.  I bought a new battery at Best Buy the other day. No brought it home, charged it and head d out for a test flight...  After a few minutes of flight I noticed it was still at 100% not was the voltage dropping.  I immediately brought my craft in.  The battery check even continued to indicate 100%.  

I brought in in and turned the phantom on and let it set and slowly drain the battery.  After a few hours I turned it off and back on and it indicated around 50-75% and dji go app indicated 68%.  Recharged and flew a 2nd time and the battery performed normal.

Just something to look for when flying on a new battery.

It seems quite strange. Does this battery work normally in recent flights?

Seems like a blip.  Just keep an eye on it and return it if it happens again.

Try and cycle the battery a couple of times, remove the props and leave the P4 running drain the battery and then charge the battery again might help doing a full cycle  as its a new battery

DJI-Paladin,

The battery was brand new and the anomaly occurred after the first charge to capacity and then used for flight.  Once I noticed it wasn't moving off 100%, I immediately landed and brought the battery in and continued to allow it to discharge by leaving the Phantom turned on and sitting idle.  After discharge and power cycling the battery, it started to operate properly.

I've performed several charge/flight cycles and the battery is working without any issues.  As huntcool001 suggested, it may have been just a blip.  

I'll continue to watch it...  but I think it's good.  I thought this would also be worth mentioning to bring awareness to everyone.  It's just good advice to check and ensure the battery charge/voltage is reporting properly before you go out flying a long distance and then realize you have no idea what the battery voltage is or how much capacity you have left.

Thanks for the heads up Crimson, I'm about to purchase a third battery in HK. BTW, I gave up trying to calibrate the VPS on my desktop, i'll always have my laptop anyways. Cheers!

donsio Posted at 2016-6-13 14:10
Thanks for the heads up Crimson, I'm about to purchase a third battery in HK. BTW, I gave up trying  ...

May I ask why you purchased the battery in Hong Kong? Because of the sales tax in US?   I saw their listing price almost identical after currency conversion

Hi, I haven't bought one yet, going there next week.

donsio Posted at 2016-6-13 01:10
Thanks for the heads up Crimson, I'm about to purchase a third battery in HK. BTW, I gave up trying  ...

The assistant 2 has been updated...  I updated to latest version and tried it again... failure on my desktop..  I too seem to be destined to use the laptop for VPS calibration.