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I am working on an Arduino project where I will be controlling 4 individual 12 volt, 0.71 Nominal amp draw DC motors, the arduino will be separately powered with another power supply.

I'm going to use a L298N controller which is known for having a significant voltage drop of 2 volts, so perhaps it's okay to use 4 18560 batteries for the power supply and using only 11.1 bad for the motors?

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  • \$\begingroup\$ How are you getting 11.1 volts? If the controller always drops the supply by 2 volts, I'm seeing 4 li-ion batteries as providing 10.14.8 volts, depending on charge level. \$\endgroup\$ – piojo Apr 8 at 4:50
  • \$\begingroup\$ 18560 batteries are 3.7 volts per unit so 4 would be 14.8 and 3 would be 11.1. \$\endgroup\$ – Rami Raghfan Apr 8 at 8:57
  • \$\begingroup\$ @RamiRaghfan Are they always at 3.7 V at all different state of charge? \$\endgroup\$ – winny Apr 8 at 12:13
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Whatever voltage below 12 volts is applied will result in a proportional reduction below the nominal speed at 12 volts. That should cause no problem for the motors.

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