MK Battery Problems

[rees2001]

Anyone that watched the Finals at Buckeye probably wondered what happened to 1126 in the last match. They had the same problem we faced this year. A bad Battery. Our Rookies (424) lost a match in the semi-finals that we thought was a wiring problem. It wasn't. As it turned out the wiring was fine it was a bad MK battery. We had 2 blow this year at competition and another 2 go down in the pre-season. I was a bit curious when we pulled the battery out of the robot & it gave a full voltage reading. We put it in a robot & tried to run, it drops down to a dead reading. When I was holding the battery I felt a warm spot about 2 inches wide that ran from bottom to top on one side. I talked with some of our electrical people I was told that it probably has a bad cell. We have checked out our chargers & they are not the problem. In the previous 7 years we have only had 1 bad battery out of dozens. (some do die over time)

What I want to know is, how many other teams have bad batteries? I would like to contact MK but I would love for some more Ammo before I do.