hi all
the battery on my range was flat after being parked for 2 weeks in a garage, and after jump starting it and driving it for a about 25 miles it just stopped on the motorway, and it repeated a few times. now if i jump start, it will start but as soon as i take the jump leads off it will stop.

can some one tell me if this would be the battery or alternator or anything else?

thanks in advance

You need to attempt to charge the battery with a proper charger, to see if the battery is faulty first

A 25 mile drive will not charge it

What voltages are you getting (alternator and battery)? Visiting from DISCO3.CO.UK
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Had this on a Dodge Ram, battery was U/S but do have a look and see what the charge voltage is Lot of Landcruisers now sold
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You can only check the alternator output once it runs on its own. Checking the output whilst the casualty vehicle has jump leads attached from a donor vehicle will give you a false reading as it is receiving input from the donor vehicle alternator. The first thing to do is put the battery on a slow trickle charge off the vehicle for 24 hours, then refit and check charge rate. If you are getting a decent output from the alternator, and I always work on seeing at least 13.5v, then you are looking at a new battery.

thanks everyone. so if i leave the engine running for a couple of hours leaving the leads still connected to the donar vehicle, will not charge the battery?

Not really, no, as the alternators are still having to power the vehicles. You need a proper charger.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

lost for words, thanks buddy.
i might sound abit .... but what do you exactly mean by a proper charger?

You make a good point really! When I say "proper charger" what I really mean is "charger".

A smart charger like a CTEK would be ideal though, and a good investment for a RRS owner.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

got ya
cheers

Yes don't leave the donor vehicle connected with both vehicles running as it won't be a good outcome for either vehicle. As said, take it off the vehicle and charge it properly on a trickle for 24hours. You can't really move forward until you have done this. Unless of course you just bite the bullet and buy a new battery; which I suspect you may have to do anyway.

i jump started and left the engine running for a couple of hours... it starts now without any jump start now, but still scared to take it for a spin incase it just stops on me while driving, as it did once last week.
i guess i would take your advice and give it a proper charge for a good 24 hours. cheers

I have a CTEK MXS 5.0 charger and they are a top bit of kit, if you have tow bar electrics you can buy a plug in adapter from Disco 3.

If I'm not using the Rangie for a while I just run the lead out the garage and plug into the tow bar socket so I can leave the car secure without having the bonnet up to charge. A very worthwhile investment, they also do full discharge and battery reconditioning which is recommended once a year on any battery  2003 BMW M5 - 5 Litres of V8 Optimax Slurping Goodness in Carbon Black

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thebodykitshop-uk wrote:

i jump started and left the engine running for a couple of hours... it starts now without any jump start now, but still scared to take it for a spin incase it just stops on me while driving, as it did once last week.
i guess i would take your advice and give it a proper charge for a good 24 hours. cheers

thank you all. i appreciate it.