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Rooster · Oct 24th, 2016, 22:12

Quote:

Originally Posted by Tatsfield

Get yourself a high tech Swedish CTEK charger which comes complete with a set of terminals which you fasten permanently onto the battery and just plug the charger into the connector on the other end of the lead. I fixed mine to the + and - battery terminals in about 15 minutes on my XC70. It hides under the battery box lid until you need it.

The negative lead of that charger lead isn't connected to the negative terminal is it??

If it is take it off and bolt it to an earth point on body

Simon Jones · Oct 25th, 2016, 12:58

Why would that be a 'better' earth than the battery itself?

Tatsfield · Oct 25th, 2016, 13:03

I used the negative terminal clamp bolt to secure the negative charger connection. Did that for 6 years on a Peugeot and had no problems. What is your reason for suggesting an alternative fixing point?

Clan · Oct 25th, 2016, 20:01

Quote:

Originally Posted by Simon Jones

Why would that be a 'better' earth than the battery itself?

It isn't about being a better earth . You have a little computer as part of the negative battery terminal and if you attach the charger earth to the battery direct, it by-passes this " Battery Monitor " and the ingoing current is not monitored ...

Rooster · Oct 25th, 2016, 21:58

I believe its says this in the owners manual,

Also if you ever jump a car leads should never be put battery to battery, it should be supply cars battery to engine earth,

Same with a charger regardless of car where the charger is the good battery

Tatsfield · Oct 27th, 2016, 09:21

Quote:

Originally Posted by Clan

It isn't about being a better earth . You have a little computer as part of the negative battery terminal and if you attach the charger earth to the battery direct, it by-passes this " Battery Monitor " and the ingoing current is not monitored ...

I must re-examine the negative terminal and see where the charger lead is attached. I assume that if it is above the microprocessor it will be OK.

Clan · Oct 27th, 2016, 10:14

Quote:

Originally Posted by Tatsfield

I must re-examine the negative terminal and see where the charger lead is attached. I assume that if it is above the microprocessor it will be OK.

Chassis , there is a convenient bolt where the negative lead bolts to the chassis behind the Left suspension tower .

Oct 25th, 2016, 13:03	#13
Tatsfield Premier Member Last Online: Today 12:17 Join Date: Nov 2015 Location: Poole	I used the negative terminal clamp bolt to secure the negative charger connection. Did that for 6 years on a Peugeot and had no problems. What is your reason for suggesting an alternative fixing point? __________________ 2012 XC70 SE Lux Polestar 230 bhp D5 Auto Oyster Grey

Oct 25th, 2016, 21:58	#15
Rooster Speed freak Last Online: Apr 3rd, 2020 22:04 Join Date: Nov 2003 Location: Yorkshire	I believe its says this in the owners manual, Also if you ever jump a car leads should never be put battery to battery, it should be supply cars battery to engine earth, Same with a charger regardless of car where the charger is the good battery __________________ 04 XC90 D5 --- Big bus 00 pug 306HDi --- Run about 88 pug 309GTi --- Project track car 07 CB600 Hornet --- 2 wheel fun

Oct 25th, 2016, 12:58	#12
Simon Jones Premier Member Last Online: Jan 15th, 2022 11:23 Join Date: Feb 2009 Location: Salisbury (ish)	Why would that be a 'better' earth than the battery itself?

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