battery readout Amps, volts test results

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gstuart

D3 Grandad
Full Member
Posts
30,763
Location
Kent
please bare with me whilst I fill in the details, am saving it as I go along in case I loose the data etc so will be adding in over this evening


have just bought a new battery which is due later in the week ,also bought some led error free bulbs for the entire interior, ie, heater controls, instrument panel , centre light, boot, glove box, etc

also a small lcd voltage display unit, just plugs into the cigarette lighter and shows the voltage whilst going along

been trying to find out about my hazard warning switch, as when I turn it on only get the illumination from the dashboard indication and not from the switch itself

new battery

varta F18 silver
85 AH
800 CCa





existing battery

75 AH
600 cca

------------------------

VOLTAGE TEST RESULTS


this is from the existing battery

standing voltage and engine not running 12.18 volts

engine running at idle @ 750 rpm. 14.20 volts

@1500 Rev 14.28 volts

after 15 minutes of engine running and then turned off done another reading of battery

12.50 volts

AMPS DRAWAGE TEST RESULTS, ( disconnected positive lead and put multimeter in series)

0.376amps, then after 5 seconds

drops to 0.080 amps with bonnet open and inside light on

then closed the door, put a small g clamp on the bonnet alarm switch

then once the light went out

0.020 amps draw

don't know if the final reading is minimal or I need to investigate further with regards to the drawage

what do u think plse

thks and hope this may be useful to anyone else
 
Last edited:
my hazard light switch doesn;t illuminate on my facelift td4 just the warning on the dash
Trev.

mines a pre facelift model ,2002

don't know why I've not noticed it before

just would have thought it would have illuminated when the switch was depressed and also lit up when the lights were put on

will see if they are or not supposed to be illuminated ???
 
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