I have read many things on this forum and have yet to find a definitive answer to the question of extending the amount of time you can fly the Phantom 2 Vision + reliably. Do different props make a difference - such as the carbon fibre props offered by DJI? Do 3rd party batteries like Limefuel make much of a difference? How about actually flying the drone? Does hovering in place use more or less battery power then say moving at slow speed/half speed/full speed? How about altitude/temperature - given that the temp drops as the drone rises and the air is thinner does that affect battery life/flight times? I am a new Phantom user and currently grounded due to winter and cold so I am using the time to learn as much as I can about flying the drone safely and maximizing the batteries - have read that once the batteries useable life is less than 90% (give or take 30 charges) that the DJI batteries become somewhat unreliable. I have always followed the rule with all types of rechargeable batteries that you should fully discharge them (down to 5% of so) before recharging them AND always recharge them fully - no partial charges - also never recharge when the battery is hot/warm such as immediately after a flight - wait till it has cooled down first. I have always had good luck with this and my batteries always seem to last longer and maintain their battery life. Does this apply to the Phantom batteries also? Thanks for any help - love this forum!