Electronic battery charger

irnbru

LIFE MEMBER
Jun 27, 2013
9,608
17,323
Glasgow
Funster No
26,684
MH
Coachbuilt
Exp
4 yrs
Just preparing the MH to go away at the weekend and plugged in the EHU last night. I have been in and out the MH this evening several times and what sounds like...the main charging unit fan seems to be running, then it speeds up and is then quiet. This is happening frequently tonight. Is this normal as I am not using anything apart from the fridge? Thanks
 

pappajohn

LIFE MEMBER
Aug 26, 2007
36,527
25,171
Dark side of the moon
Funster No
172
Exp
Since 2005
Fan usually only kicks in when the charger is chewing its nuts off and gets too warm.....were your leisure battery/ies flat ?

The current hot weather wont be helping either......warm air trying to cool the charger.
 
OP
irnbru

irnbru

LIFE MEMBER
Jun 27, 2013
9,608
17,323
Glasgow
Funster No
26,684
MH
Coachbuilt
Exp
4 yrs
Batteries..2 parallel were 11.98. Only thing that was running was the control panel showing water low.
 

pappajohn

LIFE MEMBER
Aug 26, 2007
36,527
25,171
Dark side of the moon
Funster No
172
Exp
Since 2005
Batteries..2 parallel were 11.98. Only thing that was running was the control panel showing water low.
Batteries were well discharged then....the charger will have been working overtime so no wonder the fan was running.

Im sure theres nothing wrong and once the batteries are charged it wont happen again....
 
Apr 27, 2008
8,100
5,486
Eastbourne East Sussex
Funster No
2,327
MH
A Class
Exp
Since 1972
Batteries below 12v are more than 50% discharged so could be damaged if they were in this state for a long time. As Pappajohn says the fan will run even with reasonably charged batteries in warm weather.
 
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