Parasitic Drain. Pain. Again? - Page 2

100K+ · Sep 8th, 2024, 12:13

A multi meter test of battery when engine running will tell you if charging system is working IIRC looking for 14 volts ish..
If that OK then engine off and remove negative battery terminal and insert multi meter in seriesto cable end and negative battery terminal. Set meter to 10amps + DC current. This will indicate drain after engine shut off. You might need to wait many minutes for car to totally shut down. Then as previously suggested its check the fuses.
You tube is your friend.
Cheers Bob

FreshAir · Sep 12th, 2024, 19:02

I've just watched a great video on testing parasitic drain.

https://www.powerprobe.com/resource/...4232955310.pdf is link to the data needed. Pdf file to download and keep.

https://youtu.be/lRcj1fQcWwU?si=TImCNtS-ORR3ukxh is link to the video.

I never knew you could do this to test the drain. Super useful.

ShadeTek · Sep 12th, 2024, 19:22

You really need, as said already, to get an ammeter on the battery and test to see what is draining the battery and by how much. Going by past exprience it is usually a module not shutting down, a glove compartment/boot light not going out, the alarm module internal battery drawing excessive current as the internal battery leaks out onto the pcb.

Sep 8th, 2024, 12:13	#11
100K+ Premier Member Last Online: Oct 3rd, 2024 20:48 Join Date: Aug 2008 Location: Newcastle	A multi meter test of battery when engine running will tell you if charging system is working IIRC looking for 14 volts ish.. If that OK then engine off and remove negative battery terminal and insert multi meter in seriesto cable end and negative battery terminal. Set meter to 10amps + DC current. This will indicate drain after engine shut off. You might need to wait many minutes for car to totally shut down. Then as previously suggested its check the fuses. You tube is your friend. Cheers Bob __________________ 2023MY V60 Plus PHEW 2015MY V70 D5 2004 V70 AWD R now sold 2002 V70 T5 SE now sold

Sep 12th, 2024, 19:22	#13
ShadeTek Premier Member Last Online: Sep 20th, 2024 22:06 Join Date: Dec 2002 Location: Renfrewshire View Photos By: ShadeTek	You really need, as said already, to get an ammeter on the battery and test to see what is draining the battery and by how much. Going by past exprience it is usually a module not shutting down, a glove compartment/boot light not going out, the alarm module internal battery drawing excessive current as the internal battery leaks out onto the pcb. __________________ Tek-Emo Villis Emo Bis V70 SE NAV 1.6 D2 2015MY POWERSHIFT, D4162T, 93000miles, RED. /VOL FCR/PEPER OBD2/Acron 9135 OBD2/L.E.D Flasher/VDASH/ANCEL BA301/Topdon Top Scan

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Sep 12th, 2024, 19:02	#12
FreshAir Senior Member Last Online: Sep 27th, 2024 13:43 Join Date: Feb 2014 Location: Lichfield	I've just watched a great video on testing parasitic drain. https://www.powerprobe.com/resource/...4232955310.pdf is link to the data needed. Pdf file to download and keep. https://youtu.be/lRcj1fQcWwU?si=TImCNtS-ORR3ukxh is link to the video. I never knew you could do this to test the drain. Super useful.

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