Thanks, Larry for the detailed response
Generally, the manufacturers charge recommendations should be followed.
Yes but the issue I have is to know when and how to switch from
absorption to float. The Tristar has its own decision process but is
it correct? And if not then are the
So maybe we should be heating our batteries up to
get more energy/capacity out of them :-) Better
tell Roy's customer to turn off his AC.
I did read a serious design document that told me
I should heat battery compartments to 25 degrees
C in order to maximise performance but I decided
not
Hugh,
I don't have much to add here, as I'm mostly learning from your
experience. But I'll add that if I understand your reference to
transition current as a transition to float, several charge
controllers have that feature. I have generally always used it, but
Hi Hugh,
The other thing to consider with heat is that higher temperatures while
increasing capacity also decrease life ( more active chemical reactions, and
conversely lower temps increase battery life.
jay
peltz power
On Apr 24, 2011, at 12:19 AM, Hugh wrote:
So maybe we should be heating
Zomeworks has the passively cooled battery boxes and electronic equipment
boxes, Cool Cells.
http://zomeworks.com/products/cool-cell/how-cool-cellae-works. I suspect
these are expensive, but perhaps not more than the added PV capacity needed
to run an ac.
Bill Dorsett
Sunwrights
Manhattan,
Reply #2 Looking at the specs for standard Cool Cells the biggest is 46 x
23 x 13 and lists at $2,219. Still the idea is great and I would wonder if
there isn
't a comparable use of heat pipes http://en.wikipedia.org/wiki/Heat_pipe.
At 08:22 -0600 24/4/11, Allan Sindelar wrote:
if I understand your reference to transition current as a
transition to float, several charge controllers have that feature.
I imagine they are solar charge controllers. Diversion charge
controllers as used on wind and hydro systems do not have
Hugh,
Let me give it a shot. My apologies about noting only solar charge
controllers - I forgot that the sun is a rarity where you live.
The return amps affects only the transition from absorption to
float. If, while the voltage remains up at the bulk/absorption
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