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EHU Winter Storage

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Nov 22, 2019
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I have a 2013 Best of 4 Chausson based on the Ford Transit Mk7. This will be the 1st winter that I am able to connect an EHU to maintain a healthy battery condition. With the EHU connected I have to select on via the control panel ( model PC 150 TR ). All is well and I can see that the batteries are charging, however as I have drained the water tank the water low warning LED on the panel is flashing, is this ok to be left continually flashing? Any idea's thank you.
 

Riverbankannie

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I turn my control panel off. It doesn’t affect the EHU charging on my vehicle.
 
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Thank you for your prompt reply. Unfortunately after turning of the control panel after about 3 minutes the voltage measure at the Leisure drops back to 12.2 volts. I notice this after hearing a relay click near the battery charger.

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Lenny HB

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Thank you for your prompt reply. Unfortunately after turning of the control panel after about 3 minutes the voltage measure at the Leisure drops back to 12.2 volts. I notice this after hearing a relay click near the battery charger.
sounds like your battery has had it as well.
 
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May 29, 2013
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Several years now
I have a 2013 Best of 4 Chausson based on the Ford Transit Mk7. This will be the 1st winter that I am able to connect an EHU to maintain a healthy battery condition. With the EHU connected I have to select on via the control panel ( model PC 150 TR ). All is well and I can see that the batteries are charging, however as I have drained the water tank the water low warning LED on the panel is flashing, is this ok to be left continually flashing? Any idea's thank you.
On our Best of 10 as you say you need the power on button pressed to power the relays which allow the EHU to charge leisure and cab batteries. This is not required to be on for the batteries to charge from the alternator.

The water level alarm led will just flash way happily and do no harm.

Over winter I take our MH out for a drive once every two to three weeks and connect up the EHU for one full day between those time. The batteries seem to be ok with this rota.
 
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Hi Sandancers. Thank you for the information on how you maintain your batteries during the winter period.
I have also contacted MMM motor home magazine Tech help. Like yourself they said yes you must have the panel switched on to connect the EHU to the leisure battery and the engine battery via the Van Bitz Battery master unit that is fitted and that leaving it in that condition will do no harm. This winter I plan to use a Maypole cover to protect the MH during the worst months of winter.
Thank you again.

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Mar 23, 2012
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Interesting post for me we have a best of 10 and this will be our first winter with hook up too. I would never have thought to switch the panel on!!
 
Jan 19, 2014
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I would switch everything off and put a low current maintainer on it like the 800ma optimate 2. Then If anything goes wrong in the battery the charger simply can't deliver enough current to be dangerous or cause anything to heat up ?
 
Mar 23, 2012
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I had thought about putting a low wattage heater in to combat the worst of the cold something like a greenhouse heater.

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