Power for ESC without using batteries?

Question

Arduino

Good afternoon. I wanted to ask knowledgeable people.
I am assembling a copter, here are the configurations:
arduino-ua.com/prod613-Rama_dlya_kvadrokoptera
arduino-ua.com/prod645-Bezshhetochnii_motor_1000kv...
arduino-ua.com/prod667-Regylyator_hoda_ESC_Mystery_30A
Need help testing the device. Since there is no battery, I wanted to test with the help of a memory (charged devices).
That is to emulate the accumulator.
What can you advise?
PS: it is expensive to buy a battery now, it is not very suitable for tests either. You have to constantly recharge it.

Answer 1

Ask your comrades the battery from the car, maybe it will be necessary to reduce the voltage a little, to the required one, well, or maybe someone has a charger and starter, it can give out a good current (because 4 of your motors can start eating up to 40A), or maybe to a running car cut through a small divider (just provide short circuit protection !!!).
With hanging snot, it will be necessary to think over how to make sure that the wires do not wrap around the screws and they do not short out (at least put fuses at the source), well, this whole hat was not a meter away from the tester, so as not to cripple him in case of emergency situations.