April 26, 2017
I’ve got 2 dozen robots that I use regularly for lego sumo battle workshops. They’re great!
Recently I’ve been having an issue where intermittently the robots stop when hitting the black line rather than turning around. I press play they start again and sometimes they will behave normally and sometimes they will stop. Turning them off/ on doesn’t seem to help.
Then I read somewhere that using heavy duty batteries is not recommended. Can someone explain this further?
Which batteries are best? And what sort of battery life should I expect from running the sumo program?
August 24, 2015
Low or flat batteries can cause some weird behaviour from Edison, resulting in a range of issues with the robot. That’s why the best first step is to try changing or recharging Edison’s batteries.
If using disposable batteries: only use alkaline batteries. (These are the most common AAA batteries you will find in just about any shop.) Never use heavy-duty, super heavy-duty or carbon zinc batteries.
If using rechargeable batteries: only use nickel metal hydride (NiMH) rechargeable batteries. Do not use lithium rechargeable batteries.
The reason for not using heavy-duty batteries is because they are designed to output low amounts of power over a long period of time. Whereas a robot requires quick and large amounts of energy to get the components moving.