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 Topic: Onboard Battery charger
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06/3/2020 at 10:34pm
Location: london
Outfit: Elddis marquis majestic 185
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Try and see where the cables from the battery go to, they will connect to the battery charger.
The battery charger is also usually near the fuse/ trip switches
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Basa
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06/3/2020 at 10:44pm
Location: East Herts
Outfit: 1992 Elddis Wisp 450CT + X Trail
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Quote: Originally posted by chrisseaking on 06/3/2020
Ok thank you will try! Has the red cable from the battery got a fuse?
Not sure about your particular caravan, but there is usually a main battery fuse which would normally be in the positive side.
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Best Regards,
Colin
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07/3/2020 at 12:30am
Location: Lichfield
Outfit: Coachman Amara 450
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The onboard battery charger is operated by a 240 volt mains supply so the circuit protection is via the MCB mains trip switches only which is usually connected to other appliances as well. The onboard battery charger MCB on our caravan is connected to the mains wall lights and hot water heater. However, if you suspect that the onboard charger is defective, all you have to do is remove the battery and connect up a voltmeter to the two terminal connectors, switch on the power and see what the current is. If it's working effectively you should receive around 14 volts and anything less proves that it's defective. That's how I checked mine on my previous caravan which was found to be less than 1 volt so I knew the charger needed replacing. Once the new one was installed I did a check first and the reading was 14 volts so problem sorted.
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07/3/2020 at 9:47am
Location: East Herts
Outfit: 1992 Elddis Wisp 450CT + X Trail
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If I want to check whether a charger is working I would leave the battery connected. I would then put a voltmeter across the battery terminals with the mains switched off and check the voltage of the battery, then switch the mains on. The battery voltage should show a rise. If there is no change in the voltage the charger is probably faulty.
The reason I would do it this way is because some chargers may have no-load protection. If there is no battery connected they will not show a voltage, or they may show a voltage much less than charging voltage, without a battery in circuit.
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Best Regards,
Colin
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via mobile 06/3/2020 at 8:05pm
