For how long there will be phantom 2 batteries available?I realy like phantom 2.But I see some shops don't have availability of batteries.There will be a problem as long as phantom 3 or even phantom 4 batteries are diferent?

DJI still stock the Phantom 1 battery along with the Phantom 2 & 3, so I don't see any problem for many years to come, and in that time we will probably all be flying the next generation of Phantom.