Quiet Battery Box Fan

ayurtdwellerayurtdweller Registered Users Posts: 26 ✭✭
I am looking for recommendations a quiet fan for a 24v battery bank.  Muffin style preferred. 

I currently use one that would typically be used for a computer, but it is loud. Blows real hard. I put a 24v LED light dimmer on it to try to slow it down, but it doesn't work well. 

Any thoughts?



  • BB.BB. Super Moderators, Administrators Posts: 30,947 admin
    Fan noise is related to RPM and CFM ratings... The faster the fan spins, the more noise. You can get Muffin fans with different RPM/CFM ratings. Just find one that is rated lower.

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • VicVic Solar Expert Posts: 3,027 ✭✭✭✭
    edited February 2017 #3

    Here is a Link to a solid & honest company with a number of fans of varying kinds.  (I have no association with All Electronics,   but have dealt with them for several decades,   and they are a very reliable vendor IMO):


    There are not many 24  VDC fans listed there.   You may not need one that runs on 24 VDC.   If you did need a 24 volt fan,  you could probably get  away with wiring two identical fans in series.   Using several fans could help ventilate  a larger area,   and help maintain a consistent battery temperature,   if that is important.

    Would suggest using  a Ball Bearing fan,   for longevity and lowest noise

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  • mike95490mike95490 Solar Expert Posts: 8,970 ✭✭✭✭✭
    look for "power vent battery fan"  small muffin fan in a housing, you just plumb it in

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