Hey folks,

My disco II/2004 battery died this evening, I made the mistake of leaving my lights on for about 15 mins too long, then came out and it was too dead to start.. Got a jump start from a friend and it starts right up then shuts off immediately, doesn't really even take gas if i hit the pedal, it starts enough to run for a second then just shuts off.. Thinking that it might be a security system issue, I let the battery charge up, then I closed the hood and locked and unlocked my doors with my key fab a few times, but this hasn't helped, tried several times now, ran perfectly before the battery went dead . Anyone else had this happen? Any ideas?

thanks,
-mike

 

Our Disco 2s don’t like low voltage/amp batteries.
Try reconditioning or replacing the battery.

 

Ok thanks, I'm going to try replacing the battery tomorrow and I'll report back. Thank you, -mike

 

I have a D2 (2002). I once knocked the "intake to throttle body" clamp because I forgot to tighten it. It would start and run for about half a second, then stop...
Check that location...Might be as simple as that?!

 

Just following up on this, I replaced the battery today and it started right up, so even though I was getting a good jump from another battery and we let it charge up for a bit, my old battery was not enough to keep it running. Thanks for the suggestions on here.

-mike

 

My experience is that the D2 charging is not good to the battery when you go short distances or around town only. I thought I needed a new battery just after 3 years, because it was getting weaker and it struggled cranking. Then I went on a 4,000 mile trip and that reconditioned the battery. Next time I will try an AGM battery and see if it does cope with the D2 better.

 

Typically, it takes about 7 miles of drive time to replenish the amount of draw/drain the battery suffered from cranking over to start, and that's if it starts right up...in cold conditions or a poor running engine will draw even more amperage. So, for that owner that drives a couple miles to work...it is slowly, day after day...never fully being replenish.

Number one reason an alternator fails, is constantly charging a weak or tired battery. The alternator isn't a battery charger, it just replenishes the battery and helps maintain electrical items on vehicle while running. So, if a battery is completely dead...and you simply "give it a jump"...you are asking way to much out of the alternator. A completely dead battery should be charged with a stand alone battery charger, until it is fully charged...then load tested...if passes...recharged again...and you will be good. A good rule of thumb is...just replace your battery every five years, or sooner if you are seeing slower cranking.