BAC Forum

General Boards => Technical Support => Topic started by: George H. Wall on September 13, 2010, 06:12:25 PM

Title: Overheated Batteries
Post by: George H. Wall on September 13, 2010, 06:12:25 PM
Does anyone have a problem with their batteries overheating on long hard climbs, such as crossing the Rockies or Smokies?? I have had this problem recently with temps in excess of 145 degrees, with warning beeping going off.  If I throw water on top of the batts, the alarm stops and temps return to normal. All water levels are normal, and I have bored holes in the batt compartment to enhance air flow. Any thoughts??  Henry Wall
Title: Re: Overheated Batteries
Post by: Bob Adams on September 13, 2010, 09:52:16 PM
My batteries overheated after a 13 hour drive on a hot day (approx 98F) and again after an 8 hour drive in similar conditions another day.  Relatively flat terrain, but a two hour traffic jam the first time. I couldn't tell when the warning code occurred, because I had the beeper turned off. I cleared the code both times, but never could put a finger on exactly what caused it. The battery compartment is pretty well sealed, no vents, and the engine exhaust muffler is nearby, so I can see how they would get hot, but don't know what to do about it. Was running genny and both roof airs when it occurred. After the second occurrence, I didn't run jenny or airs and problem did not reoccur. Can't figure logic why that would have made difference though.
Title: Re: Overheated Batteries
Post by: Orman Claxton on September 14, 2010, 05:42:50 PM
I have the Beaver Monterey,2005,
I am having the same problem w/ battery overheating.  I have not checked yet, but maybe the Regulator is the problem.
Thanks
Orman
Title: Re: Overheated Batteries
Post by: Tom and Pat Fudale on October 02, 2010, 01:00:33 AM
I had the problem of battery overheating, so I purchased a air conditioner condenser fan, and cut a hole in the side of the battery compartment.  I fastened the fan, and control it with a attic temperature control to come on when the compartment gets too hot. Seems to work fine so far.
Title: Re: Overheated Batteries
Post by: Orman Claxton on October 04, 2010, 03:11:26 AM
I am also having the same problem, especially here in AZ.  I am leaning toward the Voltgage regulator,
Orman Claxton
Title: Re: Overheated Batteries
Post by: Roy Mueller on October 07, 2010, 05:25:51 AM
If your voltage is 14.2 and you are not using water, your regulator is ok.
Venting the batt compartment is a good idea.

Roy Mueller