Hi all, the kitty cat (2005 XJR) has been garaged for far too long and some inattentive parenting has lead to a mostly dead battery. Before jump starting the dash was throwing every error known to man at me, but after a successful jump start (yes, I know, I should have charged, not jumped, but I'm an impatient fool) all I'm seeing is "vehicle too low".

I'm planning on running her down to Martin in Bellemore tomorrow, anything I should be worried about? As far as I can see, the wheels are clear to turn, I'll roll her down the street tomorrow and see if anything sounds absolutely no-go, but for now I'm thinking if the wheels are free to rotate I take a very leisurely drive down Southern State and creep east until I get to the shop or the car grinds to a halt.

Anyone had a similar experience?

(FWIW I used this jump starter, worked first time flawlessly: )

 

Drive it a bit. If problems keep coming up just put a new battery in. Weak battery can create lots of problems.
A trickle charger is fine. But driving it is the real answer.

 

I do have a charger but figured I'd drive it around a bit first. I'm guessing it's just the low battery as you said.

Wise words.

 

A Bad battery in these cars will show up loads of faults that are not there you really have to have a good fully charged battery the amount of different faults that came up on mine when the battery started to go bad ranged from no cruise to gearbox faults once the radio sound did not work so if you have a old battery replace it if you leave it for long periods with out using it get a charger that can be left on I use a ctek charger

 

A suggestion:
If your battery has the 6 cells for checking acid levels, then go to an auto parts store and buy a hygrometer and check each cell. If there are 1 or more weak cells, buy new battery.