what about this battery? (Multistar High Capacity 3S 4000mA)

[Bencio]

It seems HB managed to make a 3s battery with 4000mah capacity reducing the discharge rate, these batteries have 10c discharge rate with a peak rate (not more than 10 sec) of 20c, i usually fly with 25c batteries, but i would gladly lose some performance for increased flight time.
the only thing is: are we sure 10c is enough?

 

[macheung]

Re: what about this battery? (Multistar High Capacity 3S 400

C is a multiple of capacity, so a 20C 2000mAh can draw 20x2A=40A, a 10C 4000mAh can draw 10x4 = 40A

 

[OI Photography]

Re: what about this battery? (Multistar High Capacity 3S 400

What maechung said, and whether that 10C is enough for your Phantom may depend on the battery itself. I haven't seen my Phantom draw over 30A and sometimes the batts can deliver a bit more than their rating, but that's one area I prefer to give myself plenty of headroom and I try to stick with 20C and above even with capacity in that range. I think ElGuano used some 5400 mAh 10C in his Phantom with no issue but I could be wrong about the capacity.