i have an older model transit van ,which draws off two batteries ,the van is having starting problems ie flat battery and i,m having to jump it .anyway went to get new batteries and the guy tested them and said the batteries were spot on !
I had to jump it this morning again took a wee while ,got it started revved it up the lights did not get brighter ,let it run a while and turned it off and it was dead again ,usually when u get it going it stays good maybe till the next morning ,does it sound like a new alternator.?
When you 'jump it', exactly where do you connect the jump leads on your van, and what other vehicle or battery do you connect them to?
Please answer this question very carefully because it makes a difference to the diagnosis. If your answers to questions aren't careful and complete, we can't help you so well.
Can you please give more detail of EXACTLY what happens when you try to start it.
You will need to describe what happens when you turn the key such as: nothing, a slight click, a rapid clicking noise, the engine turning slowly etc
Then you need to say what happens to the lights as you turn the key. Do they: stay bright, dim as you turn the key, or not come on etc
These are just the starting pints, that we need
Out of interset, are you depressing the clutch fully as you turn the key (even in nuetral)? And, are any of the warning lights coming on once it runs?
Edited to add: Even thought this may not be directly battery related, have you checked that each of the cells in both batteries have the correct amount of distilled water in them so that they properly cover all of the plates inside.
Plus, have you made sure that the battery terminal connectors are still on tight, and covered in Vaseline or grease?