Can dehumidifier cause sealed battery problems.

Frankiep

Guest
My Motorhome is going in for repairs next week for work relating to damp ingress. To give the repairers a start i'm using a Desiccant Dehumidifier ELA DD822 on the drying process.
Iv'e got 2 Sealed Elecsoll 100ah leisure batteries at the rear of vehicle. I heard a suggestion that a dehumidifier COULD draw off the battery water.

As there is no provision for topping up, if the worst happened & a method was made to do so, out of the window would go any guarantee ( for what i'm hearing it's worth) Having only bought them in April 2011. I want to avoid that. I'm sure that when a vehicle goes in for work to be done the dehumidifiers are let loose anyway. Im trying to avoid overkill myself, i'm in the dark as to what time length to use it for, how do you know when to stop. Any one any ideas, or come across this.
 
Hi Frankiep, I've never heard this one, how I see it if the batteries are sealed how can water be drawn from them.

John.
 
Carry on Dehumidifying

Thanks to all who left their thoughts/advice on my question. Seems pretty convincing that no one reckons iv'e got a problem. I can go on dehumidifying to my hearts content.
Frankiep:wave:
 
A dehumidifer 'sucks' water out of the surrounding air, if the air in the van is dry then there is no reason for the battery to suddenly start evaporating water into the surrounding air!!

Plus the battery should NOT be in the van, but in a battery box that is vented to the outside, as when a battery is charging it will give off BOTH Hydrogen & Oxygen - a VERY explosive mixture!

I think someone's been pulling your leg!!
 
Battery in the Van: uh ??

Nosha said:
A dehumidifer 'sucks' water out of the surrounding air, if the air in the van is dry then there is no reason for the battery to suddenly start evaporating water into the surrounding air!!

Plus the battery should NOT be in the van, but in a battery box that is vented to the outside, as when a battery is charging it will give off BOTH Hydrogen & Oxygen - a VERY explosive mixture!

I think someone's been pulling your leg!!
Click to expand...

Yep Nosha,
I do have some matter between my ears, & the batteries are in the only place i would accept having them, external access at the rear & vented. Although i often read on this site of people having them located under seats wether they were located there from factory built iv'e no idea. But I wouldn't accept that. Someone may well have been doing a bit of leg pulling, not just to me because the person that said it was advising someone else on a forum to take care when using a dehumidifier. Surprisingly the suppliers of the batteries who are also technicians in the energy field, wouldnt make any commitment of an answer NO it can't happen. So im sure you will understand my caution. Thanks for your comments , Frankiep
 
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