This lists the charging time as 8 hours at 220 volts:
http://www.lange-flugzeugbau.com/bil...terie-engl.pdf

I believe the batteries are permanently mounted in the wings, and the
likely weight of the wings is suggested by an glider empty weight of
just over 1000 pounds (20 meter span), as compared to an advertised
empty weight of 605 pounds for the pure glider in the 18 meter mode.
You won't be lifting these wings.



Tony Verhulst wrote:


Well, Google has failed me :-(. Just how much does the Antares battery
pack weigh and how long for a full recharge?

Tony V.