How much amps do I need to power 4 motors controlled by a l298n, 4 servos, and an esp 32?
I have 3 18650 batteries connected in series, but it's not enough. Can I deliver enough power with 4 18650 batteries?

 

hi val.
Welcome to AAC.
What is the power rating capacity of your 18650 batteries.?
E

 

It says on the website and the online store 8000 mah

 

hi,
OK,
As you have 3*3.7v batteries in series, that's a nominal 11v, do you have a 'buck module for the ESP32's 3.3V.?
What are the voltage/currents of the motors and servo's.?
E

 

hi,
OK,
As you have 3*3.7v batteries in series, that's a nominal 11v, do you have a 'buck module for the ESP32's 3.3V.?
What are the voltage/currents of the motors and servo's.?
E

I have a stepdown module I'm planning on using 4 batteries on series

 

hi,
OK,
As you have 3*3.7v batteries in series, that's a nominal 11v, do you have a 'buck module for the ESP32's 3.3V.?
What are the voltage/currents of the motors and servo's.?
E

for the motors they are 5v motors and I'm using sg90 servos

 

hi,
In order to suggest how much current you need or your project, we need to know the current loading of the motors/servo's etc.
E
also the rating of your step down module,

 

I have 3 18650 batteries connected in series, but it's not enough.

If the motors are rated for 5V then why do you think you need an 11V (or more) battery pack?

 

Batteries in series = higher voltage.
Batteries in parallel = higher current.
More batteries = more power.

You will probably need a series /parallel configuration.

Will your motors tolerate 8 volts?

Will your motors run ok on a voltage lower than 5?

 

If the motors are rated for 5V then why do you think you need an 11V (or more) battery pack?

Because I have 4 extra servo and an esp32

 

Batteries in series = higher voltage.
Batteries in parallel = higher current.
More batteries = more power.

You will probably need a series /parallel configuration.

Will your motors tolerate 8 volts?

Will your motors run ok on a voltage lower than 5?

Actually I don't know I'm running one of those small motors with gearbox, there are no info on the current load just the

 

hi,
In order to suggest how much current you need or your project, we need to know the current loading of the motors/servo's etc.
E
also the rating of your step down module,

The step down module is lm2596 and is rated 4.5v - 35v to 1.25 - 30v with maximum current 3 amps

I'm using sg90 servos, from the data sheet the stall current is 650±80mA

I don't know what current loading is

 

hi,
OK,
As you have 3*3.7v batteries in series, that's a nominal 11v, do you have a 'buck module for the ESP32's 3.3V.?
What are the voltage/currents of the motors and servo's.?
E

hi,
OK,
As you have 3*3.7v batteries in series, that's a nominal 11v, do you have a 'buck module for the ESP32's 3.3V.?
What are the voltage/currents of the motors and servo's.?
E

How much current can a 18650 produce?

 

How much current can a 18650 produce?

A lot of current.

 

A lot of current.

Can it produce 5 amps?
I have no info of the discharge rate

 

Can it produce 5 amps?
I have no info of the discharge rate

A quick search shows 18650 battery ratings of 3.7V with capacity ranging from 1200mAh to 9800mAh.
Let us take a typical rating of 2200mAh = 2.2Ah.
Theoretically, that means it can supply:
2.2A for 60 minutes
4.4A for 30 minutes
13A for 10 minutes

That's the theory. In practice, your mileage will vary, besides the fact that the battery will get very hot and likely to burst into flames.

 

A quick search shows 18650 battery ratings of 3.7V with capacity ranging from 1200mAh to 9800mAh.
Let us take a typical rating of 2200mAh = 2.2Ah.
Theoretically, that means it can supply:
2.2A for 60 minutes
4.4A for 30 minutes
13A for 10 minutes

That's the theory. In practice, your mileage will vary.

Ok thank you

 

I don't know what current loading is

Then your question cannot be answered.

 

Then your question cannot be answered.

Can you tell me what that is? So I can find it

 

It says on the website and the online store 8000 mah

NOBODY makes an 18650 Li-Ion battery that is as high as 8000mAh so you got cheated with fake batteries.
Name Brand 18650 Li-Ion batteries are 3300mAh maximum. Some cheap ones sold at AliExpress are rated at 19900mAh!