Wet lead acids on ehu in storage

[Cush]

does leaving wet leads on ehu with a dumb charger for months in storage knack the batteries? vans in storage for many months. Accessible if it needs to be turned off. Just wondering best practice is

I read this on the company’s site…

”It is also just as harmful to leave a battery charging over a long period of time. Keeping a constant voltage at the battery terminals during the charge maintenance phase will have the effect of sulphating the internal plates in the same way as a deep discharge.”

 

[pappajohn]

It will most likely overcharge it with electrolyte loss.
You could use a cheap mains timer socket and turn it on for a couple of hours a week.

https://www.ebay.co.uk/itm/23514320...d=link&campid=5338547443&toolid=20001&mkevt=1

 

[herald_400rl]

Ours gets 3 hours twice a week over night.
If I was leaving it many months often, I'd sell it.

 

[Cush]

Ours gets 3 hours twice a week over night.
If I was leaving it many months often, I'd sell it.

Funny and informative but only allowed one emoji

 

[autorouter]

does leaving wet leads on ehu with a dumb charger for months in storage knack the batteries?

In a word, yes. You could use a timer as already described, but an alternative is a battery maintainer, which is the kind of thing used to keep the battery of a classic car or a seasonal vehicle in good shape. It keeps it 100% charged, so no sulfation, but doesn't overcharge it. An Optimate is popular, or a CTEK MXS0.8. They give up to 800mA charge, plenty to keep a full battery at the 100% level. Switch off the main charger and connect the battery maintainer direct to the batteries.

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[EuroTrotters]

Ours gets 3 hours twice a week over night.
If I was leaving it many months often, I'd sell it.

That apply in "Covid"?

Ours went to shit in this time. As we had to spend over £3,000 in testing to get over to Spain to oversea our house, banking and business.

Add the extra cost of maintenance to the MH etc, mad money

 

[herald_400rl]

That apply in "Covid"?

Ours went to shit in this time. As we had to spend over £3,000 in testing to get over to Spain to oversea our house, banking and business.

Add the extra cost of maintenance to the MH etc, mad money

Well... obviously not due to pandemic or war... but they're an expensive (ordinarily) depreciating asset and if I was only using it a few times a year for short stays I would sell it.
Feel sorry for those who would normally be out and about all the time through COVID, that must of hit hard to lose the additional freedom.

 

[VXman]

In a word, yes. You could use a timer as already described, but an alternative is a battery maintainer, which is the kind of thing used to keep the battery of a classic car or a seasonal vehicle in good shape. It keeps it 100% charged, so no sulfation, but doesn't overcharge it. An Optimate is popular, or a CTEK MXS0.8. They give up to 800mA charge, plenty to keep a full battery at the 100% level. Switch off the main charger and connect the battery maintainer direct to the batteries.

I use one of the ctek ones on my little used sports car. I think the 0.8 one is too small for a motorhome battery though - unless it is already 100% full charge. Also I dont leave it unattended after seeing a picture of a car burnt out by one that overheated.