Sumo program, bounce in borders and batteries | Edison robotics and LEGO bricks | Forum

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Sumo program, bounce in borders and batteries
April 18, 2019
4:37 pm
Steve Berrick
New Member
Forum Posts: 1
Member Since:
April 26, 2017
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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?


April 23, 2019
10:59 am
Forum Posts: 180
Member Since:
August 24, 2015
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Hi Steve,

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. 

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