Search found 1497 matches

by raysun
Tue Feb 25, 2020 10:12 pm
Forum: FLEXnet DC
Topic: FlexNetDC Setup Question
Replies: 10
Views: 3749

Re: FlexNetDC Setup Question

Yes, that sounds correct.
by raysun
Tue Feb 25, 2020 4:27 pm
Forum: FLEXnet DC
Topic: FlexNetDC Setup Question
Replies: 10
Views: 3749

Re: FlexNetDC Setup Question

YW. We're all here to help each other. Voltage is a difficult metric to correlate with state of charge, unless the battery is at rest (no load, no charging) for 24hrs. Pretty tough to do when a battery is in service. The Charged Return Amps (an Outback label) is more accurate. Use the 0.5% of C20 AH...
by raysun
Tue Feb 25, 2020 2:15 pm
Forum: FLEXmax Charge Controllers
Topic: Combining 2nd controler to flexpower one
Replies: 9
Views: 77

Re: Combining 2nd controler to flexpower one

The 4 12V @ 100AH gel battery blocks, wired in series, makes a 48V @ 100AH battery. Total power capacity: 48V x 100AH = 4.8kWH (kilowatt hours) of which 50% is useable, or 2.4kWH. Gel batteries require special charging, so be sure the charge controller has a gel charging profile and that its selected.
by raysun
Tue Feb 25, 2020 1:34 pm
Forum: FLEXnet DC
Topic: FlexNetDC Setup Question
Replies: 10
Views: 3749

Re: FlexNetDC Setup Question

So would I be correct to assume that the FNDC in a new grid-tied system where the battery is usually topped of, and only gets cycled during power outages (which hasn't happened yet), will not show an accurate SOC until that happens? Lifeline tells me their batteries come with a 100% charge, but I'm...
by raysun
Tue Feb 25, 2020 1:18 pm
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

Yes, I'm not spending much time on the theory. Mostly just making sure transients can be handed safely. They are rare enough, and within safety margin so far as to not trip breakers.
by raysun
Tue Feb 25, 2020 9:18 am
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

That explanation may describe a good deal of the sun/cloud effect. Here, the pattern seems a bit different, though I've not really delved into the physics. We frequently have cloud bands move through the area, shaped by mountainous terrain and wind. These channelled flows are at once quite dense, an...
by raysun
Mon Feb 24, 2020 5:18 pm
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

So do any of you ever see an array output higher than STC? That was the OP question, because I saw it (but not by much), whereas everything I read about it online says output will always be less than STC. Can't think of better place to get a definitive answer than from actual PV owners. I have an 1...
by raysun
Mon Feb 24, 2020 5:10 pm
Forum: FLEXmax Charge Controllers
Topic: Combining 2nd controler to flexpower one
Replies: 9
Views: 77

Re: Combining 2nd controler to flexpower one

6k is where I plan on going in a few years then I will be asking about stacking another 3k inverter. Thanks a ton for all the answers You can help you, and help us help you, if you fill out your profile with the exact models of the components of your current system. It doesn't matter they aren't Ou...
by raysun
Mon Feb 24, 2020 3:16 pm
Forum: FLEXmax Charge Controllers
Topic: Combining 2nd controler to flexpower one
Replies: 9
Views: 77

Re: Combining 2nd controler to flexpower one

Sure, the 2nd charge controller could be wired from panels to battery with 4 pieces of wire, and it would work. The disconnects/breakers are safety features, principally to protect wiring from catching on fire during electrical mishaps, and to de-energize equipment for maintenance. They are not stri...
by raysun
Mon Feb 24, 2020 1:09 pm
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

So do any of you ever see an array output higher than STC? That was the OP question, because I saw it (but not by much), whereas everything I read about it online says output will always be less than STC. Can't think of better place to get a definitive answer than from actual PV owners. I have an 1...
by raysun
Mon Feb 24, 2020 12:27 pm
Forum: FLEXmax Charge Controllers
Topic: FlexMax 80 stuck in Silent Mode
Replies: 5
Views: 44

Re: FlexMax 80 stuck in Silent Mode

I can't tell from the pictures, but with two charge controllers, there should be a dual 80A GFDI disconnect (the breaker with the little green toggle) between the FM80s and the battery, and a pair of 80A PV panel disconnects between the panel combiner boxes and the FM80s. Open the 80A PV panel disco...
by raysun
Mon Feb 24, 2020 12:17 pm
Forum: Off Grid Applications
Topic: 8048/Mate3 parameters for Lithium-Ion battery bank
Replies: 50
Views: 2773

Re: 8048/Mate3 parameters for Lithium-Ion battery bank

SOC doesn't matter to me either. But I was afraid the mate might enact an LV shutdown event based on SOC %. I've never had the Mate3s before and wasn't sure of its capabilities. I believe the original OP had a high voltage event, right? Anyway, fooling the Mate seems to have solved the issue. SOC i...
by raysun
Mon Feb 24, 2020 11:40 am
Forum: Off Grid Applications
Topic: 8048/Mate3 parameters for Lithium-Ion battery bank
Replies: 50
Views: 2773

Re: 8048/Mate3 parameters for Lithium-Ion battery bank

Hi all. I'm new to the forum. I've had Outback systems for over 10 yrs but my new home is the first with LiFePO4 batteries. I am having the same difficulty with the mate3s as Island Solar. I came here to see what others were doing about the issue with the Mate reading correct SOC. Well.. I think I ...
by raysun
Mon Feb 24, 2020 11:28 am
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

provo wrote:
Mon Feb 24, 2020 11:19 am
raysun wrote:
Mon Feb 24, 2020 10:52 am

After the spring solstice, the sun is north of us at solar noon.
Ah, must be nice, living in the tropics :cool:
Not to put too fine a point on it, but sub-tropics, and yes. :cool:
by raysun
Mon Feb 24, 2020 11:23 am
Forum: FLEXmax Charge Controllers
Topic: Combining 2nd controler to flexpower one
Replies: 9
Views: 77

Re: Combining 2nd controler to flexpower one

Can u perhaps send me a link to the breaker I need. Breakers (plural). Dual GFCI (replaces single GFDI) https://www.solar-electric.com/obdc-gfp2.html 80A PV disconnect (added for 2nd controller) https://www.solar-electric.com/outback-power-pnl-80-300vdc-circuit-breaker.html Check with your supplier...
by raysun
Mon Feb 24, 2020 11:15 am
Forum: Off Grid Applications
Topic: 1 of 8 RE16-B
Replies: 34
Views: 2487

Re: 1 of 8 RE16-B

OK, I'm ready to take the plunge into LI - specifically a pair of SimpliPhi 3.8kWh. My daily usage would be more than a single 2.7kWh but, dang, the 3.8s are only $20 each more. Duh. And even two of the 2.7s don't put out enough current if my 'ol VFX pulls a full load on them and I could stay well ...
by raysun
Mon Feb 24, 2020 10:52 am
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

I live at 19.5°N latitude. My panels are mounted at 0° elevation to the southern horizon. This mounting angle was very carefully calculated from the fact I have a flat roof to mount them on. (Well, it actually has a slight Eastern tilt to drain water, so I optimized for the morning when we have clea...
by raysun
Mon Feb 24, 2020 8:36 am
Forum: FLEXmax Charge Controllers
Topic: Combining 2nd controler to flexpower one
Replies: 9
Views: 77

Re: Combining 2nd controler to flexpower one

I did this exact thing, adding a 2and FM80 to an FP1. I'm glad I did it. I'm really glad I never have to do it again. ;) The wiring spaces in the FP1 are super tight. There are breakers that will need moving in order to add a dual GFCI breaker for the two FM80s and a 2nd PV array disconnect. The pan...
by raysun
Sun Feb 23, 2020 8:19 pm
Forum: RADIAN Series
Topic: Odd smell, perhaps burn-in?
Replies: 15
Views: 169

Re: Odd smell, perhaps burn-in?

One, way out in left field, possibility is inductance on the long-run battery cables. If not done so, physically tie them together so the sheaths are in parallel and touching along as much of their length as possible.
by raysun
Sun Feb 23, 2020 3:40 pm
Forum: Mate3 / Mate3s
Topic: unusual reading for array output
Replies: 16
Views: 148

Re: unusual reading for array output

The specs quoted for PV panels are at STC, Standard Test Conditions. Lower temperature, solar irradiation concentrated by cloud edge lensing, and other conditions can contribute to PV arrays producing above STC-based specifications.
by raysun
Sun Feb 23, 2020 11:30 am
Forum: Off Grid Applications
Topic: Charge controller for wind off-grid applications
Replies: 9
Views: 2284

Re: Charge controller for wind off-grid applications

The situation I am worried about is when the battery is low enough that it should be charged and both controlers see this, but it is both sunny and windy. The two controllers, being unaware of what the other is doing, could together try to put more current into the battery than it can accept. Setti...
by raysun
Sun Feb 23, 2020 9:51 am
Forum: OutBack
Topic: eq of batteries
Replies: 3
Views: 62

Re: eq of batteries

We have OB 200ah NC (8) batteries which we run down to 44v almost every day living here in Mi. The last several days we have had sun and the and the batteries have been in a state of float as much as 4 to 5 hours. Would that be considered an equalization? Or if I run the generator and bring them up...
by raysun
Sat Feb 22, 2020 6:07 pm
Forum: FLEXnet DC
Topic: FLAXnet DC always shows 100% SOC
Replies: 8
Views: 103

Re: FLAXnet DC always shows 100% SOC

Do you mean the Absorb End Amps setting in the FM80 charge controllers?

Or the Charged Return Amps setting on the FNDC?
by raysun
Sat Feb 22, 2020 5:59 pm
Forum: RADIAN Series
Topic: Odd smell, perhaps burn-in?
Replies: 15
Views: 169

Re: Odd smell, perhaps burn-in?

240VAC @ 28AAC ~ 112ADC charging current @48VDC
by raysun
Sat Feb 22, 2020 4:41 pm
Forum: RADIAN Series
Topic: Odd smell, perhaps burn-in?
Replies: 15
Views: 169

Re: Odd smell, perhaps burn-in?

All the connections are tight. The smell emanates from within the inverter. I've just checked and sure enough, we are charging the battery with up to 150A but the inverter max DC charging current spec is 115A. I'm going to open a new thread on that. Out of an attempt to not damage the inverter, can...