Quote:
Originally Posted by TEG
Another thing they can do is measure full pack voltage when fully charged. A tired pack tends not to hold the same voltage as a brand new one.
Yet another test is to measure differences in cell (or slice) voltage when you run down the pack. A tired pack may have some cells (or slices) that discharge more quickly than others.
A new industry will probably crop up to do this sort of work once there are enough PHEVs and BEVs on the road.
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Those are probably more accurate ways to measure the state of the battery, but I still think having a cycle log should be a easy way to do it too, as pretty much all new cars today have the electronics on board to be able to do it.
There was already talk about the industry changing when hybrids came out, but it didn't really change. I guess it's because the market penetration is still very low so far, and hybrids didn't turn out to be that different. PHEVs and BEVs are significantly different enough that maybe this time the industry WILL see a big change (and then comes the fear that the mechanics will all be put out of work, esp as a result of the BEV).