I'm read conflicting advice regarding the recommended charge percentage for maintaining/storing MM2 batteries. At the bottom of Page 23 in V1.0 of the manual it recommends to discharge the batteries to 30% or lower for transport and storage. Yet the DJI website Support page advises charging to 72%? It also advises to discharge once every three months, but to what level? The manual advises fully charging once every three months. Confusing and conflicting advise or is it me? It's a lot easier with a P4P battery and a Phantom Angel & DJI Charging Hub.