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10/10/2017 at 5:24pm
Location: South Yorkshire
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My Swift 580se caravan battery keeps going flat even with a solar panel fitted it is a new battery the solar panel was built in when the caravan was new I did add a usb plug and it seems to be a permanent live little blue light on all the time but would this flatten a 110 battery ?
Kevin
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10/10/2017 at 5:38pm
Location: South Yorkshire
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No battery was full so it is charging but when it was not plugged in it has gone flat everything was turned off
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10/10/2017 at 5:44pm
Location: Derbyshire
Outfit: Elddis accordo Motorhome
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How long does it take to go flat?
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10/10/2017 at 6:29pm
Location: South Yorkshire
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About 2 days
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10/10/2017 at 6:33pm
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assuming its not a dead battery something is draining it.. even new batteries can be faulty..
a usb blue led wont do that..disconnect it at the battery terminals.. see if it still goes flat..
another quick test is connect up just one terminal and touch the other lightly to the other terminal.. if any current is being drawn your will see a spark..
trog
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10/10/2017 at 6:41pm
Location: South Yorkshire
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Thank you I will try that
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10/10/2017 at 6:56pm
Location: South Wales
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On the new swifts there’s also a master switch on the sargant consumer unit box for the 12v it’s a rectangular black button, make sure that is off as that is meant to disconnect all the 12v supply of the battery is then still going flat, it’s time to play with a multi meter.
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10/10/2017 at 7:12pm
Location: Midlands
Outfit: Mondeo Avondale Gram
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2 days, either the battery is past its lifespan or you have something more than a single LED draining it.
Charge the battery and disconnect it. Does the voltage still drop?
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10/10/2017 at 10:22pm
Location: West country
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Silly question, you haven't put a cover on the van over the solar panel have you?
The solar panel should keep it charged all winter as long as it's getting some sun. Shade form a tree or the house will reduce the power.
Presumably there is a solar charge controller fitted with some flashy LEDs showing the status of the system.
Modern fridges need turning to off to stop any current drain. Also Status aerial amplifier must be switched off.
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11/10/2017 at 12:31pm
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a good (as new) fully charged 110 amp battery would need a 2 amp discharge to go flat in two days..
most batteries are not as new but a two amp discharge would be something like a 21 watt car stop lamp bulb..
this is enough to produce a noticeable spark with the terminal touching test..
one thing worth noting is that if the battery has been left fully flat for couple of weeks or so its quite likely to be knackered.. a hard coating builds up on the plates and the battery will not take a charge ever again..
trog
Post last edited on 11/10/2017 12:36:43
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11/10/2017 at 6:00pm
Location: South Yorkshire
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Had look today the usb was hard wired to the permanent live so I have disconnected it see how we go on now ?
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11/10/2017 at 6:01pm
Location: South Yorkshire
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LOL no cover
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11/10/2017 at 6:11pm
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Kevin there is a post edit button for use up to two hours after posting, saves multiple posts.
-------------
XVI yes?
As well is two words!
How does a sage know everything about everything? or does he? or does he just think he does?
Remember, if you buy something you bought it, not brought it.
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Topic: flat battery
