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Electric Imp Testing Log April
17, 2003, Thursday - Testing Begins. Junel, 2003 - April, 2004 Continued Testing : With continued testing we have learned much about the limits of our battery pack. Since the pack is old and of mixed batches, these conclusions are not applicable to a new pack of Hawker Cyclons. We have seen that exercising the pack does seem to bring back some capacity. We have also seen that if you drive the pack while watching one of the lowest batteries and are gentle on the throttle, you will have warning before a cell dies. Which cell is lowest changes with state of charge and perhaps rate of discharge so it is difficult to be sure you are watching the right battery. Most importantly, with the pack freshly charged and under hard acceleration, it is not necessary the lowest capacity battery that fails first, so watching the weaker capacity voltage will not keep you from killing a battery. It is the last point that makes us decide we have invested enough time in this pack. We had hoped we might be able to try some autocross with this pack but when we try and pull anything over 150 amps from the batteries, a battery dies. We can do nothing with the car until we decide on a battery pack. back to Lead Acid Test Log menu Continue to Lithium Polymer Powered Testing All
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