Re: [RE-wrenches] Test procedure for Concorde batteries

Greetings Gary, I like what John and Tump provided for advice on this. They both have a great deal of experience with batteries. I agree some of what John described can produce misleading numbers. The Concorde (manufacturer's) recommended test procedure will take a fair amount of time, but obse

Re: [RE-wrenches] Test procedure for Concorde batteries

I haven’t use the 2v, but have used many 6v L-16s Been in 2 years at most. so far so good. They are about 10lbs heavier than either a Trojan or Rolls L-16/flooded. jay > On Sep 1, 2016, at 7:08 PM, Gary Willett wrote: > > Larry: > > What is your experience with FullRiver DC1150-2 2V 1150AH

Re: [RE-wrenches] Test procedure for Concorde batteries

Larry: What is your experience with FullRiver DC1150-2 2V 1150AH AGM L16 battery? Regards, Gary Willett Icarus Engineering LLC 214-629-4279 On 9/1/16 8:51 PM, Starlight Solar Power Systems wrote: Hear, Hear, Gary, listen to t

Re: [RE-wrenches] Test procedure for Concorde batteries

Hear, Hear, Gary, listen to the Graybeards. One thing I would like to mention here. Over the last 3 years, I have seen a dramatic increase of early failures of Lifeline (like Sun Xtender, made by Concorde) batteries. I have been selling and installing Lifeline since 2004 and have hundreds of 8-

Re: [RE-wrenches] Test procedure for Concorde batteries

HI Ray, I second your opinion. jay peltz power > On Sep 1, 2016, at 4:43 PM, Ray Walters wrote: > > Hi Gary; > > I think it would be a waste of time to load test a sealed battery that is 9 > years old. Even at only 20% discharge, that battery only has 2800 cycles. > At 80% discharge, it

Re: [RE-wrenches] After market SMA TL inverter shade covers

Actually there would NOT be any direct sun exposure (sun passing north of overhead) around midday around here. The only direct sun exposure on a north wall would be in the summer mornings and evenings. See the sun path chart on this linked page http://www.gaisma.com/en/location/edmonton.html

Re: [RE-wrenches] Test procedure for Concorde batteries

Hi Gary; I think it would be a waste of time to load test a sealed battery that is 9 years old. Even at only 20% discharge, that battery only has 2800 cycles. At 80% discharge, its 550 cycles. The daily system cycle is probably roughly a 10% cycle, coupled with the frequent deep cycles. We

Re: [RE-wrenches] SMA Tripower

Hi Rebekah, You make a good point and I definitely agree with your logic, but does current on an inverter output circuit act any differently than current on a branch, feeder, etc, covered under 220? I've used this code section to round down in the past and to date it's been accepted. It has

Re: [RE-wrenches] Tracker controller service?

For custom tracker controller development, diagnosis, and replacement, we recommend Mogens Lauritzen at www.lauritzen.biz . We have used them for replacement of flaky single axis controllers, and their work has been flawless. Mark Byington Cobalt Power System

Re: [RE-wrenches] Test procedure for Concorde batteries

Wrenches You can do a carbon pile test but the best way is testing under several conditions. Here is an option real easy and maybe faster, put a volt meter on each battery under constant charge conditions, higher volts on one battery meens high resistance in battery, low volts meens low resistan

Re: [RE-wrenches] SMA Tripower

Colleagues: Ronnie Raxter of SMA has a training video on the SMA web site in which she sites just this clause. Showing this to an inspector or plan checker may convince them. Ms. Raxter has been very helpful and responsive to many inquiries I have made regarding the various SMA products. Sh

Re: [RE-wrenches] SMA Tripower

Woah way to pull out an awesome NEC reference Garrison! I'm not totally convinced it applies though, since Article 220 is specifically for branch circuits, feeders and service load calcs. The circuit in question here is defined by 690.1(b) as an *inverter output circuit*, the OCPD has to be sized

Re: [RE-wrenches] Test procedure for Concorde batteries

Gary I would suggest that the battery manufacture’s recommended method is followed. Yeah it IS time consuming BUT… Checking w/ a clamp on during a charge or discharge depending on the # of strings &/or the way the strings are configured will be misleading. Your customer is paying by the hour and

Re: [RE-wrenches] SMA Tripower

Hi Brian, Can we not invoke Art. 220.5(B) Fractions of an Ampere to round down to a 30A OCPD in this case? I suppose that .1 could be pretty significant when combining many of these inverters. Garrison Riegel Solar Service Inc On Aug 31, 2016, at 11:24 PM, Brian Mehalic mailto:br...@solarene

Re: [RE-wrenches] Test procedure for Concorde batteries

Gary, I have just two methods I use to test all batteries. I do a voltage check of each battery under load with solar input shut off. You will quickly find a battery with a bad cell or two. It is best to do this test when the batteries are already somewhat discharged to see clearer results. W

[RE-wrenches] Test procedure for Concorde batteries

We have a grid tied battery backup system that uses 8 Sun Xtender PVX-2120L batteries, about 9 years old. The grid has been going out frequently - about 4 times in the past 3 weeks. When the grid goes out, the battery voltage gets too low and shuts the system down pretty quickly. One of the time

Re: [RE-wrenches] Tracker controller service?

Allen, there is a local fellow who manufacturers a tracker (Konza Tracker, http://konzasolar.com/ ) which uses one of the three shadow sensors to keep the tracker oriented. I don’t know what he would charge for just the controller, I’ll cc this to him to see if his could be adapted. His name is