How to store batterys right !
To dont damage your battery, you should store your battery at 20-40%,
Phantom and Mavic batterys have a self-discharge function, this can take up to a week.
Keep the battery cool (room-temperature) !

How to discharge your battery :
1. Use the self-dischrage function
2. Fly till the battery is at 20-40%
3. Use the USB-Battery adapter
- With this tool you can charge you phone and discharge your battery at the same time !


How to store it :
Store your battery for trips in battery bags ! They protect the battery from damage and if the battery is damaged,
it also protects other people form violations. Keep it in roome temperatur (max. 5-30°C).


Product Links form DJI Shop :
Phantom 4 :
USB discharger
Battery bag
Phantom 4 bagpack


DJI Mavic
USB discharger
Battery bag
Mavic bag

If you want to add something, then write it in the comments !

What you should do is follow DJIs recommendations in their battery safety guide.

https://dl.djicdn.com/downloads/ ... tery+Safety+Guides+(EN).pdf

They don't need to be stored in a specific bag, neither do they need any additional 'dischargers' they do a good job themselves in slow self discharge mode, which usually takes about three days to get to the 40-65% as recommended by DJI. Worth noting that a full charge /discharge is required is required within a three month period of longer term storage.

A fully charged battery should not be stored for too long, otherwise, the battery may bulge, and some batteries may not respond for a while, but after several times of full charge storage or high current charging and discharging, the battery may be directly scrapped. Therefore, the correct way is to recharge the battery after receiving the flight mission, and after using the battery, if there is no flight mission for 24 hours, please keep the battery at about 40% before storing it.

From Grepow: https://www.grepow.com/page/company.html

thanks for the information