Hi Lufton,
I am not a senior member but I have been in the RC world for a while. The best tip I have been given for Mavic Series (Mavic and M2) Batteries is to discharge or charge depending on the case to have 2 green lights solid and the the third light flashing. Then store it preferably in a LiPo Battery Bag. It is best not to store it fully charged (if you can help it) and more importantly never let the battery be fully depleted and then store it. You may run the risk of the battery igniting during storage or you may never be able to charge the LiPo battery again, well at least conventionally. This is when the battery is out of its stable voltage range and chemistry is least stable and for the purpose of longevity a LiPo battery should never be fully depleted and all reasonable devices will have low voltage cut-offs. Or in the Mavic series a peaceful low battery warning. Some users only fly down to around 40% capacity left in the battery. But this can take the some of the fun out and maybe unavoidable depending on how you fly. Just remember if you change or modify the battery warning settings. Another good idea is to number and use a rotation system to evenly use and charge your batteries. Some examples of battery management systems are also on this forum (log books, excel etc). Finally excessive heat and to much moisture will damage the batteries. Allow you batteries to cool before charging and store in a dry place. You can use U, use silica satchels if you want to trap and collect any excessive moisture during storage. I use them when I store all sensitive RC electronic devices especially although for hard case LiPos it is probably overkill.
