Hello,
I am working on a Lawn Mower runs by RC controller. I have Sabertooth 2X25 and 2 Motors that I took from the old Electric chair and there is no description for the motors but it just says M1HA/B 50700961 50700962. I am assuming this is a 24 V motors.
I am using 12V 35A batteries SLA that comes with the chair… currently they are charged to ~15 V…
the issue I am seeing is… my motors are very slow. I checked the Voltage on the circuit and I am seeing Sabertooth gets 15 V however Motors are only getting ~4V each is this normal ?
is this a problem of Motors which are not strong enough ? Please advise. I am just a newbie and trying to learn.
Hi robotID,
The voltage sent to the motors is in relation to your R/C controller.
Make sure you selected the right DIP switches (HERE) for the type of control (HERE).
Hi robotID,
Sounds like we have the same set up. I have the same controller and motors. I’m getting between 24-30VDC to my motors and it’s very fast. I have swicthes 2,3,4,5& 6 on.
I’m being told by Robotshop that the 2x25 may not be able to handle the current that the M1HA/B motors draw. As a result I’m having control issues which I’ve documented in this forum in a thread I’ve started today. I’d be interested in seeing what happens with yours as well.
Have you created an remote e stop for both the mower and drive wheels? I need to incorporate one as the failsafe of the sabertooth isn’t enough. When it engages it only stops the drive portion. If you were in the process of turning the robot that command will remain active keeping your mower moving even when you’ve lost the link between the RX & TX. I think it’s imperative to have the ability to completly kill both the drivetain and mower engine remotely for safety reasons.
Please let me know if you have this ability on yours.
