V70 battery connect procedure

J4ck100 · May 21st, 2020, 12:41

Hi all,

I sent off my speedo unit (DIM) for repair and just recieved it back and need to therefore re-connect the battery.

I have read many different view online around the correct procedure, e.g. turn on sidelights before connecting neg lead, turn ignition to stage II, etc etc.

The owners manual does not detail any of these procedures being requied.

Can I ask what the view of the forum is on correct procedure to avoid power surge / blown computer modules?

Thanks
Jack

cheshired5 · May 21st, 2020, 13:07

Key in Pos II, driver's door left open, positive lead first then negative.
I've used this method without issue for many years and countless battery reconnections.

J4ck100 · May 21st, 2020, 13:48

Quote:

Originally Posted by cheshired5

Key in Pos II, driver's door left open, positive lead first then negative.
I've used this method without issue for many years and countless battery reconnections.

Thank you, I shall connect later.

oragex · May 21st, 2020, 13:51

Key in POSII is meant to have the headlights on

J4ck100 · May 21st, 2020, 14:56

Is there any increased risk of a big spark coming given the power draw with ig stage II? I'm a big woosy.

cheshired5 · May 21st, 2020, 16:36

Quote:

Originally Posted by J4ck100

Is there any increased risk of a big spark coming given the power draw with ig stage II? I'm a big woosy.

Not really.
There will be a small amount of sparking so you just connect the negative lead assertively and tighten it immediately.
Don't have it hovering around when connecting.

When you're done, you'll realise there's not much to it at all.

barrybritcher · May 22nd, 2020, 11:36

believe it or not leaving it in pos II REDUCES the sparking.

I always thought the procedure was bull**** until I tried it but it is legit!!

J4ck100 · May 23rd, 2020, 11:00

Thanks all, worked a treat.

Would this be a good strategy for other cars as well or unique to P2 V70?

May 21st, 2020, 12:41	#1
J4ck100 Junior Member Last Online: Aug 17th, 2020 11:57 Join Date: Aug 2013 Location: Kingston-upon-Thames	V70 battery connect procedure Hi all, I sent off my speedo unit (DIM) for repair and just recieved it back and need to therefore re-connect the battery. I have read many different view online around the correct procedure, e.g. turn on sidelights before connecting neg lead, turn ignition to stage II, etc etc. The owners manual does not detail any of these procedures being requied. Can I ask what the view of the forum is on correct procedure to avoid power surge / blown computer modules? Thanks Jack

May 21st, 2020, 13:07	#2
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Key in Pos II, driver's door left open, positive lead first then negative. I've used this method without issue for many years and countless battery reconnections. __________________ 2002 S60 SE D5 Manual 209000 miles

May 21st, 2020, 13:51	#4
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	Key in POSII is meant to have the headlights on __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

May 22nd, 2020, 11:36	#7
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	believe it or not leaving it in pos II REDUCES the sparking. I always thought the procedure was bull**** until I tried it but it is legit!! __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

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May 21st, 2020, 14:56	#5
J4ck100 Junior Member Last Online: Aug 17th, 2020 11:57 Join Date: Aug 2013 Location: Kingston-upon-Thames	Is there any increased risk of a big spark coming given the power draw with ig stage II? I'm a big woosy.

May 23rd, 2020, 11:00	#8
J4ck100 Junior Member Last Online: Aug 17th, 2020 11:57 Join Date: Aug 2013 Location: Kingston-upon-Thames	Thanks all, worked a treat. Would this be a good strategy for other cars as well or unique to P2 V70?

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