My 04 Discovery didn't crank up this afternoon until the 4th try.
After it started my A/C display registers 16 as low and 28 as high & The clock lost the current time.
Could this be an Electrical Fuse problem or Battery problem? Any advice? Thanks!

 

check your battery

 

you can load test the battery to check it as said by the above post. and try to look up for the battery cable connections. it should be clean to avoid cranking problems.

 

first if it is under warrenty then off to the shop. If not, then check all of the grounds on the vehicle. specifically the battery for a good connection. It also may be a low voltage drain on the battery. If you end up having to replace the battery, i recommend a high quality deep cycle battery. hope it helps. gotta love a rover. duboff

 

optima...

 

ground wire is ****ed up replace it