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Hugh,<br>
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
primarily to allow a quick transition from absorption to float when
a system with flooded batteries is left unused for days, in order to
reduce gassing and excessive water consumption. <br>
<br>
The RVPP/Blue <font face="Times New Roman, Times, serif">Sky Solar
Boost series has this as an integral analog setup adjustment
(although we have stopped using this product after too many
failures over the years). The Outback MX/FM series has it as an
optional either/or logic (max absorb time or done amps, whichever
is achieved first, assuming a long enough solar day) and the
Midnite Classic also has it.<br>
<br>
Allan<b><br>
<br>
Allan Sindelar</b></font><br>
<div class="moz-signature"> <small><a
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<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
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<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
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<br>
On 4/24/2011 1:11 AM, Hugh wrote:
<blockquote cite="mid:p06230901c9d97882909a@%5B10.0.2.2%5D"
type="cite"><br>
Transition current is not in the vocabulary of the Tristar
controller. I am not aware of a product that has this feature
aside from maybe some inverters. I have read in an Outback
manual that you should program the absorb time based on charge
current measurements, but the logic of this depends on the battery
being 'flat' to the same degree at the start of each charge -
whereas wind and solar charging is not like that.
<br>
<br>
</blockquote>
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