[Qbranch]

We had a battery act wierd like this on us this year and we marked it bad. I'm not sure when it came from... we aren't really too good about cataloging batteries and all...

However, we didn't catch in on the field, we caught it in the pit. I highly suggest teams own a Load Tester for their batteries... basically it's a box of ceramic resistors with a built-in volt meter and a switch to apply/remove the load from the battery. We briefly test each of our batteries this way before they go to the field to make sure that they perform.

You should be able to get one at most auto parts stores.

-q