I searched it up, and I couldn't quite get a solid answer. Is this safe to do because I read somewhere it can handle only 4 Amps in total. I am using two 3200mAh Lithium Ion batteries. I'm not sure if I am thinking about this right, does the L298n only consume the current that it needs, or is this power supply too much?
The l298 is a motor driver. It only consumes a tiny current to power is internal circuits.
Are you attaching motor(s) to the l298? I ask that because it seems strange that you did not mention any. It is the motors that consume current, so it is the motor current that you need to be concerned about.
But @apop274 could have an issue. Your comment was not helpful.
Yeah I have 2 tt dc motors connected to them. They use about 1 Amp of current each, do you think that this power supply would be okay to use for what I am doing?
With this driver and 7.4V the driver consumes more power than the connected motor. With a modern MOSFET driver your motor runs twice the time from one battery load.
A motor driver can not be killed by a too strong battery, only by a too demanding load.
Motors can use 5 times more current when they start up compared to when they are running. This is called the "stall current" and is also seen if the motor is unable to turn. This is the max current the motor can draw.
Measure the resistance of the motor coils with your multimeter, then use Ohm's law to calculate the stall current at any given voltage.
As @DrDiettrich said, l298 will drop a significant voltage, probably around 2V, so only about 5.4V will be available to your motors.
Actually only two Amperes, continuous current (1 Ampere per channel). And at that current, the L298 will drop up to 4V internally, leaving less than 4V for the motors.
You will be much better off with a modern, efficient motor driver, which will deliver most of the battery power to the motor. Pololu has the best selection.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.