Questions about Wild Thumper 6WD with Wild Thumper Robot Controller

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This is my first post and my first attempt at starting a robot and programming said robot. I have some questions regarding my Wild Thumper 6WD with Wild Thumper Robot Controller.

I am currently using 2 - 7.2V 5000mAh RC batteries wired in parallel. The setup responds to my RC transmitter but for only a few seconds and then stops, but I believe that is due to testing the setup on carpet with the original WT wheels. I also have the low voltage jumper in place. So I do not think it is an issue with the board or batteries. I haven't had a opportunity to test on a flat surface due to the weather but was wondering if anyone has had any luck and/or reommendations with any replacement wheel tire setups for carpet? I know I can modify the existing wheels by cutting off the little knobs on the tires but I wanted to see if there were any other options people have had good results with using.

My other question is with the robot controller, I am using the Jr/HiTech/Spectrum servo connectors for the connection to the receiver but have found them to be a loose fit on the WT Robot Controller has anyone else had this issue? Any recommendations for a tighter fit?

Thank you for all your help. I like this site and read it almost every day for help and ideas.

I’m guessing the batteries
I’m guessing the batteries are NiMHs, based on the 7.2 volts. They may be old or designed for a small toy, because of the 500 mA-hr rating.

It was a typo on the

It was a typo on the batteries they are Tenergy 7.2V 5000mAh batteries in parallel. Thanks for the fast replies!

I have attached a photo, I

I have attached a photo, I also played around with thte setup some more and it seems that the servo connectors on the WT Robot Controller board are so loose that they are wiggling free, stopping the control. The connectors I am using for these wires are the ones for HiTech/JR/Spectrum. Any ideas for getting them to stay in place?