Good deal KY Crappie. That will probably do for a test WE16. Course, I wouldn't want to run it like that for more than just a day to see though.

I suspect you've got a cracked cell in that new battery. Might not be fully broken through, just enough to pull it down with some use. Might be a defect or rough treatment in transit. Upshot should be that you can have it replaced for free under warranty if I'm right.

Wannabe...