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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Charging BatteryViews : 4486 Replies : 36Users Viewing This Thread : |
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Oct 17th, 2021, 13:52 | #21 |
Much too Senior
Last Online: Mar 26th, 2024 15:07
Join Date: Jun 2019
Location: Stockport
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0.15A is a high drain current, something must be switching on. After 4 days that is approx 15Ah, 20% of the battery capacity, which probably would take the voltage down to 12.3V.
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Oct 26th, 2021, 11:57 | #22 |
Master Member
Last Online: Mar 12th, 2024 16:11
Join Date: Jan 2006
Location: Chester
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Over the last week I've checked my battery voltage regularly and it's still losing a lot of power, even when leaving it unlocked overnight. Approx rate of decline is 12.7V down to 12.30V over 3/4 days. This seems too much to me. I've checked the "drain rate" again and it seems to settle at 20 mA after a while. Is this normal does anyone know?
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Oct 26th, 2021, 14:00 | #23 |
Premier Member
Last Online: Yesterday 14:40
Join Date: Feb 2009
Location: Hackensack
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With meter in place you should do the "pull one fuse at a time" test. There's no other way to tell which circuit is causing the drain.
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Oct 26th, 2021, 18:05 | #24 |
Master Member
Last Online: Mar 12th, 2024 16:11
Join Date: Jan 2006
Location: Chester
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Do you know if the drain I've got is excessive? Cheers.
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Oct 28th, 2021, 12:43 | #25 |
Much too Senior
Last Online: Mar 26th, 2024 15:07
Join Date: Jun 2019
Location: Stockport
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20mA is nothing. That only equates to 2Ah for 4 days which on an 80Ah battery is approx 3% of it's capacity. My drain is 50mA, still nothing to worry about.
It would be interesting for you to disconnect the battery for a day to see if the voltage has dropped. If so, then for some reason, the battery isn't holding it's charge. |
Oct 28th, 2021, 13:15 | #26 |
Master Member
Last Online: Mar 12th, 2024 16:11
Join Date: Jan 2006
Location: Chester
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Yes it's all very puzzling. I'll do as you suggest, it's a brand new battery so should hold its charge for weeks. Cheers. AG
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Nov 3rd, 2021, 23:39 | #27 |
Flaccid Member
Last Online: Mar 22nd, 2024 15:14
Join Date: Nov 2016
Location: Norwich
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bear in mind if you have either RTI, premium sound or diesel you need a bigger capacity battery vs a lesser model
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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) |
Nov 16th, 2021, 16:30 | #28 | |
Master Member
Last Online: Mar 12th, 2024 16:11
Join Date: Jan 2006
Location: Chester
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Quote:
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Nov 20th, 2021, 17:30 | #29 |
Senior Member
Last Online: Feb 28th, 2024 20:28
Join Date: Jan 1970
Location: ipswich
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Got fed up with my battery losing charge after ten days so now disconnect negative terminal.
30 seconds with a 10mm spanner |
Nov 20th, 2021, 17:48 | #30 |
Master Member
Last Online: Mar 12th, 2024 16:11
Join Date: Jan 2006
Location: Chester
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Well good to hear I'm not the only one with the problem, but there must be a cause. Mate of mine with a Defender leaves it for months and it still starts first time. May have to do as you do on my regular trip into deepest, darkest Wales to be on the safe side, pending a solution.
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