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Boiled battery

Question

Posted

A few weeks back I had to quickly switch off the power to the van as the battery boiled.

I must be wrong then, in assuming that I could leave the power on 24/7 to keep the alarm and main batteries charged?

Admittedly I haven't yet checked the output from the charger as I am waiting until the covers come off in a couple of weeks time.

I never go away without having mains connection and it's constantly plugged in at home. It was last out mid-October and was plugged in then and continuously until it fried three weeks ago (approx).

Has the collective heard of/experienced overcharging faults from the system fitted to a top of range 2009 Elddis, or have I just left it connected too long and dried the cells out?

TIA

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Posted

Mine is on 24/7 - there should be something to control the charger on the main board!

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Posted

It only needs one cell to short out internally, then the charging voltages will "boil" as you say, the others. [Not boil, but electrolysis to gases.]

It is all to easy for the cells to break up and paste fall out shorting, or partially shorting a cell; its an aging thing. It is also a quality aspect but even the best fail in time.

You should be able to leave on charge continuously any "modern" caravan. [ last 10 plus years.]

Definitely some chargers are better suited to doing so than others, smart chargers

You can't IMO measure anything constructive now with that battery in place or no battery in place.

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Posted

Thanks for the input, Chaps.

Agreed, Ocsid but I do have alternative batteries I can connect to see if the charger is running over while it's fully charged.

I don't remember the make but was told when I bought the 'van that it was a new battery so if that's the case it's lasted around 10 months which is not so good.

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Posted

Bought a car the other day with a 'new' battery - no way was it...

I've got a 'new' battery on my caravan - I know it is I fitted it....

.... in 2010...

We know we fitted a 'new' battery - we tend to forget when we fitted it new wink.png

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