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15th January 2019, 09:27 | #11 | |
This is my second home
Rover 75CDT, Jaguar XF-S 3.0V6, V'xhall Omega V6 Estate, Twintop 1.8VVT, Astra Estate and Corsa 1.2 Join Date: Dec 2007
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Quote:
The OP's charger is a 6W unit. Let's assume that daylight lasts for 6 hours each day with an equivalent minimum 50% duty cycle, this would mean an average output of about 800mW or 60-70mA. This is sufficient to offset the normal long-term drain on our cars and battery losses in order to keep the battery topped up provided it was fully charged in the first place. |
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15th January 2019, 18:01 | #12 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
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I bought it in France and it's given good service for quite a few years now. I have checked the battery before and after connecting it and the multi-meter shows a slight increase in voltage. Very small but a definite rise. My battery is three years old and is currently showing 12.68 volts. The car starts first time every time.--- If anybody is worried about the inbuilt diode causing problems they are cheap to buy and easy to fit in line. Two being better than one.--- That Halfords one seems a good bet as with that you will get some charge even on dull days. The small output one that I use here in France works OK but of course we do get more sunshine here.--Lol. Last edited by COLVERT; 15th January 2019 at 18:19.. |
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16th January 2019, 07:12 | #13 | ||
This is my second home
Rover 75CDT, Jaguar XF-S 3.0V6, V'xhall Omega V6 Estate, Twintop 1.8VVT, Astra Estate and Corsa 1.2 Join Date: Dec 2007
Location: Suffolk
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Come on, the solution should be more elegant than that. It should detect the voltage differential between the charger and battery and disconnect when the former drops below say battery voltage + 1v. Why simplify when you can build elegance? Quote:
Have you ever wondered about your lack of popularity? |
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16th January 2019, 09:48 | #14 | |
This is my second home
1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009
Location: Dorset
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Solar Charge Controller |
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16th January 2019, 13:22 | #15 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
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16th January 2019, 18:04 | #16 |
This is my second home
1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009
Location: Dorset
Posts: 8,595
Thanks: 3,496
Thanked 3,397 Times in 2,218 Posts
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16th January 2019, 22:13 | #17 |
Gets stuck in
MG ZT,MG ZT-T Join Date: May 2008
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I have been reading all comments and will check battery voltage over the next few days. Can I ask if anyone thinks under the sunroof is a good/bad idea?
Neil |
16th January 2019, 23:27 | #18 |
Gets stuck in
Rover 75 Diesel Tourer, called Perseverance Join Date: Nov 2011
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Is it plugged into the cigar lighter socket, or elsewhere, such as direct to the battery terminals ?
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17th January 2019, 12:44 | #19 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
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Quote:
Normally part of the kit that comes with the charger is a pair of crocodile clip to join on to the battery direct. If the charger is behind the windscreen there is the problem of connecting the two items up. |
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17th January 2019, 18:38 | #20 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
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