I am using the trustfire Li batteries. When I run all the 3 three thrusters at full speed outside the water, everything is fine. When I put the ROV in water and run just one thruster, at half the full speed, everything shuts down. When I run two motors, it shuts down at quarter the speed.
My conclusion is that the batteries are tripping at high current draw. Is there any solution to this, or a work around at least. I am using custom onboard electronics with a raspberry pi. I isolated the power supply for the motors by putting a separate lithium ion batteries to power the onboard electronics. The 6 trustfire batteries (3+3 in parallel) are only powering the motors.
I saw the new recommended batteries. Is that the only way ahead or can I fix this issue somehow with my trustfire batteries.
Any help in solving the problem would be great. Thanks.