Discovery battery problem

I am currently having the same problem but with my 1986 Ford TX3 1.6i (dunno what they call it in UK), and this started few weeks after engine overhauled (300k km mileage). Changed to new battery and a reconditioned alternator, but to no avail, after few days the car cannot start. Mechanic said the same thing, most probably a drain somewhere, probably from the amplifier. Now still waiting for the mechanic to come back from his Chinese New Year holidays, maybe next week. Will update soon.

HishamClan.

On or around Wed, 21 Feb 2007 12:44:30 -0000, "redseadiver" enlightened us thusly:

Pull fuses one at a time and connect across the fuse terminals with an ammeter, with everything nominally turned off. Remember to turn off the interior lights while checking.

sounds like a current drain in something, but it's only a small current: 2A over 36 hours is 72AH, which is most of your battery capacity.

"Austin Shackles" wrote in message news: snipped-for-privacy@4ax.com...

Or, better maybe, AVO across battery post and lead. That checks for any unfused drains, in particular things added to the vehicle at some stage after manufacture.

The boot light was always fairly often the cause when I was in the game on a professional level. (Marinas etc!)

Julian.

There is a documented problem where the remote receiver in the alarm is held in an active state by some external signal on the same frequency, this then flattens the battery.

Unfortunately the frequency chosen for car alarm keyfobs is shared with many other things and any of these could cause the problem. These things include wireless door bells, remote weather stations/temp sensors, wireless burglar alarms and many other 'low powered devices', the band is also shared with Radio Amateurs and Military communications, as well as a very high powered radar at Fylingdales.

I understand that Landrover are well aware of the problems and receivers in different frequency bands are available.

Regards Jeff

Thought that was just P38a Range Rovers, but possibly contagious.

Hi everybody. Can I just thank you all for your suggestions which were greatly appreciated. The one that worked in this instance was Austin Shackles's fuse removal plan and it seems that more than one circuit was involved. The radio, one interior light (and of course the clock) turned out to be problematical and were using power. All resolved now so very many thanks to you all.

"rads" wrote >

What have you done - put the radio and clock in the bin?

Julian.

"Austin Shackles" wrote in message news: snipped-for-privacy@4ax.com...

A similar trick is to disconnect the earth from the battery and place a diagnostic light between the cable and terminal. Remove fuses 1 at a time until the light goes out. This generally locates the troublesome drain.

Jack