Lipo management for Arduino based robot (BMS)

Other Hardware Robotics
1

Hello,
I am building a small mobile robot.
I would like to power the robot with a Lipo battery.
This battery will power :

  • The Arduino board (Mega)
  • The 2 motors
  • The rest of the components (via a voltage regulator type 7805L)

I know that there are precautions to take in the use of this kind of battery (short circuit, excessive discharge of the cells, too high current draw).
==> To manage these aspects of the battery I would like to use a BMS (Battery Management System) card that would secure the use of the battery.

Here is the link to the battery I have chosen:

Could you advise me on the choice of a BMS card for this battery (I would like to integrate a ready-made card)

I thank you in advance for your feedback
romain

2

3S BMS,

3

Thank you
While looking for how to connect this card to my battery I came across this picture :
image

However on the battery I bought (see link before) the cells are already connected...
so I can't do this assembly.
I wonder if the battery does not already contain this type of card.

In short, I do not understand how to use my battery safely

romain

4

Did you notice how many wires are coming from your cell?

Did you notice how many connections are required for a 3S BMS?

One wire for V+. One wire for V-. One wire for B1 and one wire for 7.4.

Anyways. Good luck to you.

5

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