I'm in the same boat with getting a new Rover 6+ with a DOA battery.  Warranty is nice but seems like maybe a better QC needs to be in place?  These new batteries don't have the easy plug-in fuses.  Apparently I see a 10A and a 40A fuse that is a surface mount/ceramic type fuse (yes the 40A came off during removal).  I did test continuity with a multi-meter and both were good.  Not sure what other options left.  Anyone know of a place/person that is willing to work on these?  Also, do you think it's safe for me to solder the 40A back on or am I taking a risk?  Thanks.