I must have missed the prior discussion about using PV CC. The concept
sounds good but how many of you have done this and are there any
pitfalls to be aware of? If I use a 20 amp bridge I should be able to
produce 80 amps @ 14.4V. For continuous operation, will I need a large
heat sink on it?
How does the unfiltered full wave peak voltage affect the CC over time?
Are they (specifically Midnite) really designed to handle input waveform
like this? I like this idea, especially if I can stack the controllers.
Thank you,
Larry
On 12/15/14 6:51 PM, jay peltz wrote:
Hi Kirk,
If you use a 200vdc midnight CC you'll have no issues.
When you rectify 120vac its up around 166vdc
( uses the peak vac which is around 170vac.)
For a 150vdc max controller ( midnite 150) or a 144vdc ( outback FM)
then a buck transformer or standard transformer is the trick to reduce
the AC and hence the DC for these lower voltage units.
jay
peltz power
On Dec 15, 2014, at 5:38 PM, Kirk Herander wrote:
This has been discussed on this list in years past. It is possible to
use an outback charge controller as a battery charger. You need to
put the 120 AC into a bridge rectifier, then feed the 120 DC into the
controller’s PV input. So you’ll have an 80 amp battery charger.
*Kirk Herander*
*VT Solar, LLC*
*/Proven PV provider since 1991/*
*www.vermontsolarnow.com*
dba Vermont Solar Engineering
NABCEP^TMInaugural Certificant
VT RE Incentive Program Partner
802.863.1202
*From:*RE-wrenches
[mailto:re-wrenches-boun...@lists.re-wrenches.org]*On Behalf Of*Dan
Tittmann
*Sent:*Monday, December 15, 2014 8:18 PM
*To:*i...@windsine.org <mailto:i...@windsine.org>; RE-wrenches
*Subject:*Re: [RE-wrenches] Programmable Battery Charger
You can manually adjust Iotas with tweaking the potentiomiters while
monitoring it with a god volt meter. But no time adjustment.
Daniel
Daniel Tittmann
CTO
Greenwired
www.greenwired.com <http://www.greenwired.com>
dan...@greenwired.com <mailto:dan...@greenwired.com>
707-923-2001 (office)
707-206-5088 (Cell)
On Mon, Dec 15, 2014 at 4:21 PM, Windsine Inc. <winds...@gmail.com
<mailto:winds...@gmail.com>> wrote:
Check out Argus Technologies.
RoyR
On Dec 15, 2014 4:01 PM, "Larry" <la...@starlightsolar.com
<mailto:la...@starlightsolar.com>> wrote:
Wrenches,
Does anyone know of a 120/12 volt battery charger that can be
programmed for absorb and float voltage and time in absorb mode? I
have been needing this product for many years but I can only find it
in inverters with built in chargers from Magnum, Outback, and Xantrex.
--
Thank you,
Larry Crutcher
Starlight Solar Power Systems
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