17-08-2004 07:56

Andy Brockway

Re: White Paper Discuss: Robot Battery and Electrical System Guide

Thanks Al!!

I explain battery care to the team every year, now I have a handout to go with the speech! We received that advice of one person to provide battery care at the events when we were rookies and it is an excellent practice.

07-10-2006 17:50

FourPenguins

Re: White Paper Discuss: Robot Battery and Electrical System Guide

Thanks! Great whitepaper and it appears to be the only one of its kind. I'm currently writing up a whitepaper for my team on battery practices based on your whitepaper and a thread I've been reading here on CD. Thanks for the information.

07-10-2006 19:22

Phalanx

Re: White Paper Discuss: Robot Battery and Electrical System Guide

Thank you very much!

This past season we had some issues with battery power being drained rapidly which brought up many questions as to where and why the power wasn't there. A Short? The Batteries at EOL? Too much draw, and so on.

This paper does an excellent job bringing batteries to light. I do plan to share this with our electrical team and have those students present it to others on the team during one of our education/teaching meetings.

Well Done! And Thanks!

08-10-2006 16:26

Al Skierkiewicz

Re: White Paper Discuss: Robot Battery and Electrical System Guide

Michael,
I haven't looked at that paper in some time so I should review it. If you have any questions or need further assistance, just PM me and I will give you my email address. You reminded me that I need to upload my presentation from the Championships as well.

08-10-2006 17:23

eugenebrooks

Re: White Paper Discuss: Robot Battery and Electrical System Guide

Al, just some comments if you revise the article.

Gel batteries, and in particular the ones made by EXIDE, are specified to be used/shared in any position up to 180 degrees inclination. If a normal to the surface of the top of the battery points slightly downward, ie worse than horizontal, it is a bad position that might allow something more than gas (condensate) to escape the valves. Of course, one would not expect teams to be standing batteries on the power wiring...

Star washers between the lugs and the battery posts, as opposed to brushed flat surfaces, may increase resistance, but it is important to use adequate and properly torqued fasteners to avoid connections that move, and to check them periodically as things happen that losen them, star washers or not.

As noted elsewhere in threads on CD, you should use anserson connectors on your charger. In addition to the potential safety hazard, the damage done to the surface of the connector can lead to higher resistance for the high currents drawn by the robot.

A great article for teams to use in understanding batteries and their high current wiring...

Eugene