I suppose it's not possible to fly Spark in winter when outdoor temperature is below 0 degrees celcius. Which is the best way to store Spark's batteries? Charging them occasionally or leaving them without charging. We have allmost 5 months outdoor temperature below 0 degrees in Finland so these information would be very important to know.

The Spark is pretty much maintenance free. I just put it in its case and charge the battery every three to four months, unless a great photo op presents itself during Winter. I wonder if it will help if I put in one of those dehumidifying jello packages in the case with my sparky to reduce moisture?

I would keep them cool at 40-60% charge in a plastic bag.
Check the charge once a month and eventually charge until  3-4 of 5 the green LEDs are on).
Not more, otherwise they start their storage program after 10 days to get below 70%.

When it comes to store your battery, here are some tips:
1.Stay away from water and moisture.
2.Set the auto-discharging at 10 days. ( Just leave it idle about 10 days)
3.To maintain the battery's activity, please charge the battery fully once every three months.

DJI Elektra Posted at 2017-11-1 19:50
When it comes to store your battery, here are some tips:
1.Stay away from water and moisture.
2.Set the auto-discharging longer.

Where can I set the auto discharging.

Edd_88 Posted at 2017-11-1 21:44
Where can I set the auto discharging.

Good question!
Eager to read the answer

Edd_88 Posted at 2017-11-1 21:44
Where can I set the auto discharging.

The battery will start discharging automatically after being idle for ten days.

DJI Elektra Posted at 2017-11-1 23:20
The battery will start discharging automatically after being idle for ten days.

thanks for the info Elektra

Ryan's Sparky Posted at 2017-11-1 23:59
thanks for the info Elektra

Please feel free to ask more details if you have doubts about it.

DJI Elektra Posted at 2017-11-1 19:50
When it comes to store your battery, here are some tips:
1.Stay away from water and moisture.
2.Set the auto-discharging at 10 days. ( Just leave it idle about 10 days)

Idle about 10 days means take it out of the AC or charger for 10 days?

Edd_88 Posted at 2017-11-2 03:30
Idle about 10 days means take it out of the AC or charger for 10 days?

Yes, you are right. The battery will discharge automatically.