2008 XJR Out of Winter storage.
Battery disconnected and Trickle charged over Winter. Reads 100% Charge.
Battery reconnected and when Jag is started continuous CLICKING occurs with all Dash lights and everything else on.
Never ever happened before!
Anyone know whats going on?

 

If you can try a different battery. It's not unheard of for an older battery to go bad even on a charger.
That's my first thought.

 

Is that continuous clicking while trying to start?

If so it could be the starter not engaging just turning which results in continuous clicking.

Which can also mean the battery is not good.

 

Thanks Rhomanski,
But Battery is only 1yr old.

 

Thanks Jackra,
Will have to get Starter checked although have owned Jag for 7yrs with only 102k on clock and it's been nursed with storage every winter.
Battery is only 1yr old!

 

Welcome to the forum Geoff,

I've moved your question from General Tech Help to X350 forum. This is the place to post questions about your model.

Graham

 

Thanks GGG......

 

That means little. Is the engine cranking over?

 

Hi Mikey,
No! the engine is not Cranking, just clicking sound!

 

dead battery is your first suspect.

 

Ok Mikey, will get it checked.
But after Trickle Charge with NOCO G3500 GENIUS would've thought 100% Charge solid green light should show that it's fine!

 

If a battery is dead it can charge up to its max (it's dead max) but is actually holding almost no charge.

That's why they load test them to find out.

You can approximate that by putting a heavy load on (engine off, heated everything on, headlights on etc) and check voltage at battery after a few mins.

 

Was your trickle charger one that shuts down to float mode when fully charged, or the old type?

 

I also would rule out the battery first. It certainly sounds like a dead battery. You can pull the battery out and take it to a parts store such as Advance Auto and have them test it for free.

 

Old thread, but another thought for future reference: battery terminals/clamps have built up corrosion. Often nearly invisible, you can disconnect the clamps and it will look fine, but it is not.
Roughen up the clamp faces and the terminals with a wire brush or sandpaper. The corrosion creates a barrier between the clamp and terminal, resulting in a battery not charging sufficiently, but it can take quite some time before it becomes apparent.
Our hot and humid weather in the islands means this is an exceptionally common problem, and many people replace batteries needlessly.