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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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Volvo S60 2002 D5 Battery Dual SetupViews : 357 Replies : 3Users Viewing This Thread : |
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Nov 30th, 2020, 00:47 | #1 |
Junior Member
Last Online: Yesterday 10:16
Join Date: Aug 2014
Location: Leeds
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Volvo S60 2002 D5 Battery Dual Setup
Hi
Can anybody advise me please if it is possible to consider dual battery setup for camping in my volvo s60 2002 D5? I am wondering if the second (leisure) battery should be connected in parallel to the starter battery with some relay to prevent draining starter battery and also allowing leisure battery to be charged when driving. Any idea how much maximum current can leisure battery 150AH draw from the alternator (if the starter battery is already full)? Is there any danger that the alternator will be overloaded and brakes down? Many thanks in advance for any help Regards |
Nov 30th, 2020, 10:15 | #2 |
XC70 SE lux D5
Last Online: Feb 25th, 2024 14:34
Join Date: Jan 2011
Location: Mansfield, notts
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All you are wanting to do is the same as you would if you were towing a caravan which has its own battery.
I would recommend you use a voltage sensitive split charge relay to connect your leisure battery to the car for charging . This will allow the leisure battery to charge only once the main battery/alternator output has reached 13.7V or higher and will disconnect the leisure battery once the main battery/alternator output drops below 12.8V. example of such a relay. https://www.12voltplanet.co.uk/volta...-12v-140a.html |
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Nov 30th, 2020, 12:33 | #3 |
Junior Member
Last Online: Yesterday 10:16
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Location: Leeds
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Thanks for reply.
What about using inverter on the battery? Any idea how much power can i draw when the engine is running and the battery fully charged ? Can i draw 500-1000Wats? Regards |
Dec 1st, 2020, 11:09 | #4 |
XC70 SE lux D5
Last Online: Feb 25th, 2024 14:34
Join Date: Jan 2011
Location: Mansfield, notts
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If your inverter were 100% efficient then you would be drawing 41A(500W) or 82A(1000W) but they are never 100% efficient so you need to look at the inverter you are going to use to see what current it draws from the 12V at full load. (I suspect it will be nearer 50A and 100A )
I theory you could draw that from the car electrical system but it would put a big strain on it and it would limit what other electrical items you could have running on the car, EG lights heated windows etc. You would also need the engine running at a speed much higher than idle. If you intend to run inverters of this power I would seek professional advice as you will need them permanently wiring with suitable size cabling and fusing any way. edit.... I found this web site that explains a bit more about using an inverter to produce 220-240 AC from a 12V source. https://www.hortoncommon.co.uk/230v-...nd-motorhomes/ It will give you an idea of what's involved. Last edited by XC70Bob; Dec 1st, 2020 at 11:14. |
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