Vehicle & Technical > Discovery

Power draining from battery (Fixed)

(1/3) > >>

BigA:
I have read through a similar thread in in Range rover section but i have a similar problem.

Got a 300 TDI, couple of weeks ago went to start it one morning and the battery was dead, just getting a click from the starter. Battery was a bit suspect so i brought a new one. Also recently replaced the alternator.

All seemed ok for a couple of weeks, and yesterday went out to the same issue. Charged the battery back up and all ok, but within a couple of hours it is flat again.

i have checked the alternator is charging, and getting minimum 13.7 volts when engine is running. I have tried the test with a bulb between the positive terminal of the battery, and the positive lead. the bulb doesn't light up when the ignition is off, if the door is opened i get a low glow, presumably from the internal lights coming on, and if i turn the ignition on the bulb lights fully.

only thing i havent/cant test is if its the alarm/immobiliser flattening the battery?


any help or suggestions greatly appreciated? :x

Frankie-Boy:

Hi Andy,

Thinking about it your trouble started after you fitted that second hand alternator, it doesn't seem to be charging at a high enough rate and also might be causing a discharge.

If you are happy that your brand new battery is ok, I'd suggest another alternator before trying to find a fault which probably isn't there.

BigA:

--- Quote from: Frankie-Boy on October 12, 2009, 08:36:48 ---
Hi Andy,

Thinking about it your trouble started after you fitted that second hand alternator, it doesn't seem to be charging at a high enough rate and also might be causing a discharge.

If you are happy that your brand new battery is ok, I'd suggest another alternator before trying to find a fault which probably isn't there.

--- End quote ---

Frank,

i have checked the alternator again, and it is giving a reading of 13.8 - 13.9 v, and when lights, indicators, wipers, heater etc. on still about the same. This i belive is an acceptable reading after some investigation and checking?


Also, the battery is draining now in about an hour from a sucesfull ignition, with the disco parked on the drive, not locked and not running? so i think i have ruled out the alternator, but i could be wrong? and..... even if i charge the battery for some time, e.g. overnight, it is still not showing on the charger as fully charged, which i would expect?

i am goin gto take the battery back and get it checked out, and go from there i think?

Frankie-Boy:

Sounds like a good move Andy, the new battery could be faulty, it does happen sometimes.

barmiebrumie:
Have a loan of someone else's battery for a night  :-k



John

Navigation

[0] Message Index

[#] Next page