Join Date: Sep 2006
Thanked 14 Times in 13 Posts
Rep Power: 9
Re: Stow location for batteries on PSC 34
We have been okay so far with the fridge and sea water cooling the battery box from the inside and the two holes in the half lids venting the box. That's five years in the tropics including the 100º+ temps where we are at now.
Since heat rises, the hottest air in the port locker is going to layer at the top. Some can escape through the 1/2 gap between the locker's forward bulkhead and the deck into the galley sliding door locker and out. If the port locker hatch and surrounding areas are covered with a bimini or other cover, that helps. Heat from inside the locker can also better radiate off those surfaces. We also cover the space between our cockpit cover and the caprail on the sunny side of the boat. Then, we hang a cover from the caprail to about one foot off the water where the sun hits the hull covering the locker. Looks like hell.
We have never hung these last two covers until now, but we have never been in this kind of sustained heat before. As I said in a previous post, the inside of the battery box is typically staying below 80º with all of these things in play. And, we do have a temp sensor on our solar regulator and AC charger.
Having said all of this (whew!), I still think your idea, RD, is a good one, maybe even brilliant. If it accomplished the same or better cooling than the covers we've been hanging (pia), at least the boat would look better.
Last edited by DaveMancini; 08-16-2013 at 03:33 PM.