Battery Capability & Time Calculation

Power System
1

Hi Guys :bouquet:

Please Help Me With This Calculation Like–

SP140 Using This (SP140 V2.0 Battery) Battery Pack with BMS Which Size is 3.7kWh and featuring top-grade lithium-ion cells Like Molicel 21700. So Battery Configuration is – Molicel 21700, 24s, 11p, 4200 mah.

So The Battery Capacity is Total 46200 mah.
Battery Size / Energy is 3.7kWh
Battery Weight is 43 lbs.

And It’s Can 10kw continuous power rating and 60 sec burst at 20kw to SP140 Paramotor Which is MAD M50C35 PRO EEE Manned Drone 34 KV motor. As you Know It’s a Brushless Motor And It’s Features is –

RPM/V : 34 KV

No Load Current : 3.7A/30V

Motor Weight : 4205 g

Maximum Current : 251.5 A

Maximum Thrust : 113.7 kg

Hover Thurst : 35-45 kg

ESC : 300A(12 - 24S)

UAV take-off weight : 245-63"/ 160kg–Quadcopter, 240kg–Hexacopter, 320kg–Octocopter

Nominal Voltage : ? (24S lipo battery)

Internal resistance : 14.7mΩ

Maximum Power : 24987W (25KW)

Maximum Torque : 78.4 Nm

Propellers : Tri-blade 140cm

So How Can It’s Fly 40-60 Minutes What’s The Math ?

2

Ok your after a text book exact
There isn’t an exact answer
However think of it like a bucket of water the faster you empty it the faster it goes flat

Your motor
P/VxI
P is power watts
V is bolts
I is current

Simple maths
Example
10 amp battery
1Amp load
Will run for 10 hours
However in your case your load will vary so the golden rule is work on worst case senario

Max load min time

Hope that helps