Dr Kiwi

Both set-ups come out as "4s 4000mAh"... so, yes, they are the same. Whether or not this gives you the power you need for a .40-size aircraft with a power 46 depends on the prop size you choose and the flight time you desire.

Here are two scenarios from E-flite, both of which, conveniently, assume a 4s configuration.... but BOTH of them push the motor well over its rated 40A continuous rating, so I'd reduce prop size somewhat to keep the amp draw within the stated "40A continuous" limit. [12x8/12x6 maybe, at least to start with, to determine whether performance is going to be adequate.

Hangar 9 Ultra Stick 40 ARF (HAN1675 / HAN1690)
[TABLE]
[TR]
[TD]Option 1:[/TD]
[/TR]
[TR]
[TD]Motor: Power 46[/TD]
[/TR]
[TR]
[TD]ESC: Castle Creations Phoenix 60 (Standard settings with 12V Soft Li-Po cutoff and no brake)[/TD]
[/TR]
[TR]
[TD]Prop: APC 13x8E[/TD]
[/TR]
[TR]
[TD]Battery: Thunder Power PRO LITE 6000mAh 4S3P (THP60004S3PPL)[/TD]
[/TR]
[TR]
[TD]Flying Weight w/Battery: 5.8 lb[/TD]
[/TR]
[/TABLE]

[TABLE="width: 450"]
[TR]
[TD]Amps[/TD]
[TD]Volts[/TD]
[TD]Watts[/TD]
[TD]Input Watts/Pound[/TD]
[TD]RPM[/TD]
[/TR]
[TR]
[TD]51.5[/TD]
[TD]14.4[/TD]
[TD]745[/TD]
[TD]128[/TD]
[TD]8250[/TD]
[/TR]
[/TABLE]

[TABLE]
[TR]
[TD]Expect very strong performance with very short takeoff rolls and a great balance of thrust and top speed. Average duration is approximately 12 to 20 minutes depending on throttle management.[/TD]
[/TR]
[/TABLE]


[TABLE]
[TR]
[TD]Option 2:[/TD]
[/TR]
[TR]
[TD]Motor: Power 46[/TD]
[/TR]
[TR]
[TD]ESC: Castle Creations Phoenix 60 (Standard settings with 12V Soft Li-Po cutoff and no brake)[/TD]
[/TR]
[TR]
[TD]Prop: APC 13x8E[/TD]
[/TR]
[TR]
[TD]Battery: Thunder Power PRO LITE 4200mAh 4S2P (THP42002S2PPL x2 in series)[/TD]
[/TR]
[TR]
[TD]Flying Weight w/Battery: 5.4 lb[/TD]
[/TR]
[/TABLE]

[TABLE="width: 450"]
[TR]
[TD]Amps[/TD]
[TD]Volts[/TD]
[TD]Watts[/TD]
[TD]Input Watts/Pound[/TD]
[TD]RPM[/TD]
[/TR]
[TR]
[TD]47.4[/TD]
[TD]14.1[/TD]
[TD]670[/TD]
[TD]124[/TD]
[TD]8220[/TD]
[/TR]
[/TABLE]

[TABLE]
[TR]
[TD]Expect strong performance with very short takeoff rolls and a great balance of thrust and top speed. Average duration is approximately 8 to 15 minutes depending on throttle management.[/TD]
[/TR]
[/TABLE]