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Originally Posted by Al Skierkiewicz
Mike,
The 70 A would be OK and cheaper I think. The "M" indicates meters and you usually get a premium for those. Again, the wires you use will drop some voltage so you might want some welding cable (#2 or larger)to run from the supply to robot. Before you commit dollars, use a current meter and find out what the current draw actually is. A supply with enough current to drive the robot might easily be worth several batteries.
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Thanks, I'll check out the current situation when I get back to Boston
Right now I'm on co-op at home and just putting together a list of problems and areas my team needs to work on when I get back to Boston in May. Power was an issue for us this year. We never seemed to have fully charged batteries.
Therefore, another plan of mine is to take your advice and just buy the charger that came in the kit. I thought I could make a mobile power station. Buy 4 of the midtronic chargers. Make 4 slots for the Exide batteries. Even keep a smaller spot avaliable for charging a 7.2V backup battery. Then get some sort of power supply to power the robot while in the pits. Slap some wheels on it and you've got the "mobile power station." So after many hours, and probably close to $600 later, our power problems will be solved... hopefully.