I'm currently sitting in my Lunar Solaris 2 in a campsite near Abergele in Wales online via Wi Fi and listening to the constant drone from what I assume is the battery charger - located in the fuse box under the bench. this has been running now for 24+hours..... and only shuts up when I turn the charger isolator off. My lesuire battery is a 110amp hour type - 4 months old. Is this normal? i'm worried the battery is over charging... any one have the same problem? Any advice much appreciated thanks.
Probably coming from the plates on the transformer. When current is passing through your transformer, the plates will try to repel each other due to the effects of magnetism and you should make sure the bolts holding them together are tight.....make sure you disconnect the charger before checking their tighness. Another thing you could do is mount it on a rubber base to stop it resonating and using the floor as a sound box.
sounds like its not bolted down right. if you got a buzzing thats whats usually causing it as transformers naturally hum (if you go near a sub station they do the same)
try doing what jocko2 has said as this should cure the problem.
I would disconnect the battery and see if it quietens down then, if it does then it could well be your battery is faulty and overloading the charger.
Depending on age and make but after around 93 there are very few 'transformers' that actually contain a transformer! so doubtful it's there to be loose.
Some mains chargers have small transformers inside them. These will cause the noise experienced, As suggested in an earlier post, its out with the soldering iron and ensure there are no dry joints.
Not sure about this charger as it's right on the cusp, in general, it can be said 92 would have been a simple transformer, 94 switch mode, in between ??
The modern switch mode charger only has a high cycle pot to up the normal 50h hertz to around 200 I think?, I have only once known one in a Zig X7 charger buzz, not others though?
There's been another similar thread running this last week, his buzzing stopped if the battery was taken out the circuit, not sure yet though if he's twigged the battery, almost certainly, is at fault?
Thanks very much for the advise re- my noisy battery charger. Since my first post i bit the bullet and took the unit apart. Think I might have mislead everybody as the noisy is actually coming from an internal cooling fan which runs constantly when the unit is charging. not ever so noisy, but very distracting late at night! since then i've come to realise that the caravan mains electric supply is actually dealing with the 12 volt functions, and thats why it runs for so long - there is no noise from the transformer itself - its all this fan. after 3 or 4 days when the lesuire battery is fully topped up, the noise shuts off. i assume the battery is a slow trickle charge, and as its 110 amp/hours prob takes ages to charge. cheers!
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Topic: Noisy battery charger!
