What is the largest battery that you can make to fit, V1

[Miika]

The Phantom Vision (V2) will have over 5000 mAh battery.

-If your handy, is it possible to mod your V1 to run with V2 batteries? Or would there be other issues with it, other than that it does not fit in and has different connectors?
-If you could find let's say 4000mAh battery that would fit the V1 one casing, would there be any issues unknown to noob like me?
-Does Phantom Vision have some other features that will make to quad fly longer besides the extended battery-life. So if you would be able to get 5000mAh battery fit into V1, would it still have shorter flight time (if the weight would be same as V2).

 

[martcerv]

Fitting inside the v1 battery door a zippy flightmax 2800 squeezes in without a mm to spare. Performance wise a storm 2700mah 30c will get the same flight time as its a 30g lighter and an easier fit.

If you moddify the shell you can likely fit larger batteries inside but not a 5000mah plus the key issue along with size is weight. In all caoacities there are big differences in weight and so you want the lightest possible battery and so it will be interesting to see the actual weight of the v2 battery and setup overall.

Many people are also flying dual batteries fitted externally but you need to take account the total weight and use larger props to help lift this. Basically a single 2200mah battery may get you 8 minutes but using 2 wont give you 16 minutes because the second batteries weight will reduce the flight time so likely only get about 11 to 12 minutes with 2 batts.

There will be a point where adding more battery will no longer give any more flight time as the eextracapacity this adds will be just enough to lift the extra weight.

The vision battery must be very light for its capacity in order to get the rated flight times, or the new dji 9 inch props must be very good too.