Vehicle & Technical > Discovery

Power draining from battery (Fixed)

<< < (2/3) > >>

howlinmadmartin:
had a similar problem on a 300tdi defender at work the once, it turned out that the brushpack was shagged and was back feeding down to earth through the alternator. may be worth a few quid rather than an alternator or battery.

BigA:

--- Quote from: howlinmadmartin on October 12, 2009, 19:11:04 ---had a similar problem on a 300tdi defender at work the once, it turned out that the brushpack was shagged and was back feeding down to earth through the alternator. may be worth a few quid rather than an alternator or battery.

--- End quote ---

Also had a call last night from Lifteddisco who suggested a similar problem with the alternator so today have been out checking again. i get no difference in amps drawn (i think, doubting my multimeter now) with the alternator connected or disconnected, and i have completely disconnected it. also found today on another forum that the only likely causes of draining power as quickly as i am experiencing is the alternator, glow plug relay of heated windscreen. i dont have a heated windscreen so thats out. the glow plug relay is looking a bit past it, mud every where and cover loose, but again when disconnected no change.

having said all that, since jump starting it this morning, and about 3 hours have passed, it is starting ok still??

adamdanshona:
I have the same problem with mine I have gone through two heavy duty batterys in six months!! Again alternator ok.
Car ok if used daily but if left a day has trouble starting,also I have to have the glow plugs on three times before it will start,ok when warm.
I am begining to suspect a bad earth or my factory alarm.
It is very slow to turn over when cold,faulty starter motor?

BigA:
The saga continues......


--- Quote from: adamdanshona on October 13, 2009, 11:03:56 ---Car ok if used daily but if left a day has trouble starting,also I have to have the glow plugs on three times before it will start,ok when warm.

--- End quote ---

I use mine daily, and on the Friday before it packed up was out and about all day? with the new battery on, it also starts (when it starts) without the glow plug, first turn?

Sat this afternoon with alternator disconnected, and after about 2 and half hours, flat battery again, starter slowly turning. Put on charge for 20 minutes and started perfectly.

I rang the place i brought the battery from this afternoon, and they suggested that i take it down on the vehicle and they would to a drain test, typical i thought after flaffing all day. So of i popped down to see the nice helpful chap.....


Got there, they tested the battery with the thingy that goes across the terminals, this almost melted so he says.... thast fine. He checks the voltage from the alternator, and again.... thats fine. so he packs his kit up and says.... must be your starter motor ???  I just started it twice with him ??? then i get the..... leave it hear overnight, and if it s flat we will get it in the garage and started trying to find the drain???

suffice to say, i politely turned down there offer.

battery is now off, and i will test again in the morning after it has not been connected all night.

BigA:
A further update....

Connected battery this morning after being disconnected all night, and she started first turn no problem at all. The test i did yesterday were on the positive side of the battery. after further research last night it looks like i should be doing it on the negative side, so i start again.

with the meter set to 20amps i get a reading of 0.06 but this keeps spiking to 0.11. as far as i have read anything above 0.03 amps is too high, so as long as i am reading and checking correctly this is too high. so off i go again and start trying to discover the fault. i disconnect the alternator, no change, leave it a few minutes to be sure and still no change. Start removing fuses and no change until i remove the alarm fuse, and it then drops to 0.04. this i think could make sense it may explain the spikes, but the car is unlocked, key out and i dont think the alarm is on???

i start tinkering, i believe the alarm unit is in the center of the dash, so i remove the stereo for a for a peek. upon removal of the stereo, the amps drop to 0.03 and are now staying at that? if i reconnect all goes back up and jumps up and down?

have i found the cause?

is 0.03 amp s OK?
am i doing the test correctly?

sorry for going on so much

Navigation

[0] Message Index

[#] Next page

[*] Previous page