Where to start?

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guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Where to start?

Post by guardm16 » Tue Jul 07, 2020 3:40 am

My wife and I just bought an off grid cabin in the Northern Arizona mountains. It will be our weekend getaway for now but eventually retirement home.

The cabin has an Outback system that to me looks like a space shuttle launch panel. I don't want to mess anything up so where to start.

I cant find any manuals or instructions can anyone tell me what we have and what to do first?

Here is a picture of the system.

Thank you in advance.
Attachments
Outback.png

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Tue Jul 07, 2020 10:14 am

That looks like a 1st class installation.

I never thought about a paper towel rack near my system. You must have a flooded lead acid battery. 😉

Speaking of the battery, please post a picture of the system's battery, and if possible, one of the detail labels from one of the monoblocks.

The central piece in the installation is one of Outback's FX series inverters. Can't tell which one from the photo.

The oval shaped device is a Mate2 system controller.

The rightmost device (above the chainsaw) is an Outback Charge Controller. It receives power from the solar panel (PV) array, and converts it to charging voltage and current for the battery.

The wiring panel on the right contains DC circuits and disconnects (circuit breakers). The wiring panel on the left contains AC circuits and disconnects.

There appears to be a battery monitor installed, but I can't ID the model.

Attached is the Mate/Mate2 user manual to get you started.
Attachments
mate_mate2_installation_usermanual.pdf
(1.67 MiB) Downloaded 44 times

fcwlp
Forum Czar
Posts: 541
Joined: Wed Jan 22, 2020 9:40 am
My RE system: GS8048A, FM80 w/3,600 W PV Fixed, FM80 w/2,700W on Zomeworks tracker, Mate3, 24 Trojan 2V L16 1100AH @ C20, Grid-Tied with Kohler 14RESA LPG Generator and MEP-803 Diesel if needed
I also install and maintain grid-tied and off-grid systems, details will be given for these system if required
Location: 80 miles NE of Phoenix at 5500'

Re: Where to start?

Post by fcwlp » Tue Jul 07, 2020 3:24 pm

guardm16 wrote:
Tue Jul 07, 2020 3:40 am
My wife and I just bought an off grid cabin in the Northern Arizona mountains. It will be our weekend getaway for now but eventually retirement home.
Welcome to the AZ high country. It took us about 2 months to decide we liked Young better than Scottsdale.

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Tue Jul 07, 2020 9:35 pm

Thank you all. We will head up there on Thursday and I will get some pictures of the batteries and the battery monitor?

The last time we weer up there, I remember seeing some corrosion on the terminals, I will get that cleaned off and check and fill each battery with distilled water. I think I counted 16 of them when I was up there last.

Is there a "Quick Start Guide" for the FX system? I hope nothing needs to be re-programmed, just all the components switched on? Or am I over simplifying things?

Thanks again everyone.

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Tue Jul 07, 2020 10:46 pm

How long has the system been idle?

Has the Flexmax charge controller been operating, and maintaining the battery?

SandyP
Forum Guru
Posts: 423
Joined: Tue Jun 21, 2011 4:44 am
My RE system: 8 x 190W 24V Suntech panels (4 strings of 2) July 2011
4 x 325W 24V Suntech panels (2 strings of 2) added Sept2018
Mate2
Outback FM60 MPPT (max output lowered to 55amps)
12 x 2V Hoppecke GEL 660 Ah C100 - 24V System
Outback VFX3024 Inverter/Charger
Victron BMV-602s
Honda 5.5kW Genset
Location: Victoria, Australia

Re: Where to start?

Post by SandyP » Tue Jul 07, 2020 11:15 pm

guardm16 wrote:
Tue Jul 07, 2020 9:35 pm
../..
Is there a "Quick Start Guide" for the FX system? I hope nothing needs to be re-programmed, just all the components switched on? Or am I over simplifying things?

Thanks again everyone.
By the look of the blank MATE screen in the photo the battery bank maybe toast/dead.
If not totally dead but below the minimum voltage to power up the system you will not be able to get anything to "work".

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Wed Jul 08, 2020 1:41 am

Well, to be honest I half expected the batteries to be toast. I am not sure how long the home has been vacant. Built about 15 years ago, the inside looks almost new but the outside needs work being in the AZ Sun. I do have a Generac generator to supply some power. Well, one step at a time. I'll post what I find on Thursday.

Thanks again

provo
Forum Czar
Posts: 531
Joined: Thu Jul 27, 2006 4:34 pm
My RE system: Sixteen Evergreen EC-120
(4 strings, total 1920W)
Eight Rolls S-550 (2 strings, total ~800Ah @ 24V)
One FM80
One VFXR3524A
Hub 10
Mate3s
FNDC and Trimetric
Location: Sierra foothills

Re: Where to start?

Post by provo » Wed Jul 08, 2020 5:38 am

guardm16 wrote:
Tue Jul 07, 2020 9:35 pm

We will head up there on Thursday and I will get some pictures of the batteries and the battery monitor?
While you're there, count the panels and take a picture -- the label on a panel would be ideal.

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Wed Jul 08, 2020 7:40 am

There isn't really a quickstart guide, every system is a bit different. Here are a a few manuals that will be detailed references:


FX Series Inverter/Charger install manual:
http://www.outbackpower.com/downloads/d ... nstall.pdf

FX Series Programming manual:
https://ressupply.com/documents/outback ... Manual.pdf


PLEASE NOTE -
I'm guessing from the photo that the solar charge controller model is the Flexmax 80. NOTE: Mike Curran ID'd the controller as the older MX60.

The Inverter models all look essentially the same, so the picture only gets us in the ballpark. The manuals above are of Outback's FX series, the original models which have been discontinued for some time. All the inverters works essentially the same way, so the documentation will be a rough guide.

Again, it's just a guess, but I expect the Inverter is one of the 48 volt models (matched with a 48 volt battery consisting of two parallel strings of 6V battery monoblocks wired in series.)

The possible inverter models may be: FX3048, VFX3648, FXR3048, VFXR3648. There are a number of other models as well, but all use a similar naming scheme. Look for a small white label on the unit.
Last edited by raysun on Wed Jul 08, 2020 8:09 am, edited 1 time in total.

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Where to start?

Post by Mike Curran » Wed Jul 08, 2020 8:02 am

I'm guessing from the photo that the solar charge controller model is the Flexmax 80.
Nope, it's an MX60 - no extended fan housing on top.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Wed Jul 08, 2020 8:03 am

To start the system:

These steps should serve as a guide. Since the details of the system installation are not known, it is a general guideline, rather than authoritative, on the the system. However, most OB systems using their component wiring panels are generally configured similarly.

Note there is a DC Panel (on the right) with disconnect circuit breakers, and wiring from the battery, charge controller, and inverter. Examine the breakers.
• Identify the Battery disconnect. It may also be labeled Inverter disconnect. It will be the largest circuit breaker, likely 125A - 175A.
• Identify the PV (solar panel) disconnect. It should be 60A.
• Identify the Charge Controller disconnect. It may be a special circuit breaker with Ground Fault Detector Interruptor capability, if so, there will be a small green lever. If not GFDI, then there should be an 60A DC circuit breaker.

On the left is an AC wiring panel. It will have, at minimum, an AC disconnect for the output of the Inverter. It would be an AC circuit breaker in roughly the 60A range. There may be other circuit breakers there as well, such as an generator disconnect.

As a general rule of thumb:
To shut down the system, in order, disconnect: all AC circuits, the PV input, DC output of the charge controller, the inverter (if there is a separate DC disconnect for it), and finally, the battery.

To start the system, reconnect in reverse order, starting with the battery.

Special note: ALWAYS connect the charge controller battery circuit (DC output) BEFORE connecting the PV (Solar Panel) input.
Last edited by raysun on Wed Jul 08, 2020 8:10 am, edited 1 time in total.

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Wed Jul 08, 2020 8:04 am

Mike Curran wrote:
Wed Jul 08, 2020 8:02 am
I'm guessing from the photo that the solar charge controller model is the Flexmax 80.
Nope, it's an MX60 - no extended fan housing on top.
Good catch.

MX 60 manual:
https://www.wmrc.edu/projects/BARenergy ... _REV_C.pdf
Last edited by raysun on Wed Jul 08, 2020 8:07 am, edited 1 time in total.

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Where to start?

Post by Mike Curran » Wed Jul 08, 2020 8:07 am

And unfortunately it looks like OB doesn't have a manual on the Web for it (I looked under legacy products). When I bought mine in 2007 they were issuing paper copies of the manual with it.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Wed Jul 08, 2020 8:11 am

Mike Curran wrote:
Wed Jul 08, 2020 8:07 am
And unfortunately it looks like OB doesn't have a manual on the Web for it (I looked under legacy products). When I bought mine in 2007 they were issuing paper copies of the manual with it.
I found this:
https://www.wmrc.edu/projects/BARenergy ... _REV_C.pdf

SandyP
Forum Guru
Posts: 423
Joined: Tue Jun 21, 2011 4:44 am
My RE system: 8 x 190W 24V Suntech panels (4 strings of 2) July 2011
4 x 325W 24V Suntech panels (2 strings of 2) added Sept2018
Mate2
Outback FM60 MPPT (max output lowered to 55amps)
12 x 2V Hoppecke GEL 660 Ah C100 - 24V System
Outback VFX3024 Inverter/Charger
Victron BMV-602s
Honda 5.5kW Genset
Location: Victoria, Australia

Re: Where to start?

Post by SandyP » Wed Jul 08, 2020 8:12 am

raysun wrote:
Tue Jul 07, 2020 10:14 am
../..
There appears to be a battery monitor installed, but I can't ID the model.
../..
Seems to be a Bogart Engineering TriMetric TM-2025-A Battery System Monitor

SandyP
Forum Guru
Posts: 423
Joined: Tue Jun 21, 2011 4:44 am
My RE system: 8 x 190W 24V Suntech panels (4 strings of 2) July 2011
4 x 325W 24V Suntech panels (2 strings of 2) added Sept2018
Mate2
Outback FM60 MPPT (max output lowered to 55amps)
12 x 2V Hoppecke GEL 660 Ah C100 - 24V System
Outback VFX3024 Inverter/Charger
Victron BMV-602s
Honda 5.5kW Genset
Location: Victoria, Australia

Re: Where to start?

Post by SandyP » Wed Jul 08, 2020 8:33 am

Mike Curran wrote:
Wed Jul 08, 2020 8:02 am
../..Nope, it's an MX60 - no extended fan housing on top.
The FM60 also has no extended fan housing, but the colour of the buttons (grey) do appear similar to the older MX60 as the FM60's buttons appear white.
CC_Capture.JPG
FM80_FM60_MX60

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Where to start?

Post by Mike Curran » Wed Jul 08, 2020 1:49 pm

I forgot the FM60 didn't have the extended fan housing. I'd still bet on it being an MX60 if only because it's in a system with an original Mate. But of course that's no guarantee.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Fri Jul 10, 2020 3:04 pm

OK, after my day at the cabin I have discovered several things.

The batteries are Rolls 6 volt, and there are 20 of them.

There are 12 SV panels on the roof (I didn't go up there to look for a brand or model number)

The batteries are dead...I am assuming because everything was in the "ON" position? But the main breaker box in the house was in the off opsition

here are some pictures I took

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Fri Jul 10, 2020 3:06 pm

Battery pictures
Attachments
Battery tag.jpg
batteries.jpg

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Fri Jul 10, 2020 3:07 pm

AC side
DC side
and what looks like charge settings?
Attachments
charge rates.jpg
DC side.jpg
AC side.jpg

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Fri Jul 10, 2020 3:08 pm

Inverter
Charge Controller
Battery minder?
Attachments
Inverter.jpg
Charge Controler.jpg
battery minder.jpg

guardm16
Forum Member
Posts: 11
Joined: Tue Jul 07, 2020 3:32 am
My RE system: I really dont know what I have

Re: Where to start?

Post by guardm16 » Fri Jul 10, 2020 3:14 pm

Thanks everyone, I will download and read these manuals tonight.

I did not touch the system, but I do have a tech coming next week to look at it.

It looks like the DC side has 24V on the large breaker.

I was able to plug in the Generac 5500 and have power in the cabin. So I have that to fall back on until I get the OB up and running.

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Fri Jul 10, 2020 4:12 pm

guardm16 wrote:
Fri Jul 10, 2020 3:06 pm
Battery pictures
Rolls is a quality battery brand. It appears to be a 24V system, so 20 monoblocks would be 5 parallel strings of 4 blocks wired in series. (4 6V monoblocks wired in series makes a 24V battery string.)

The general rule of thumb is no more than 3 strings in parallel. More makes it hard to keep the cells in balance.

The amount of sulfation on the terminals is not a good sign. It generally indicates a degraded battery. The best approach to evaluate the battery health will be a process of disassembling the battery to individual monoblocks, clean the terminals, check the cells for water, and filling as necessary with distilled water to a level above the lead plates. Next wire a pair of the 6V monoblocks in series to make a 12V battery, and use a standard 12V battery charger to try charging it. After charging each 12V battery, check the specific gravity of the electrolyte in each cell using a hydrometer. Any cells that show "Poor" or measure less than fully charged (1.265), are likely dead.

You may be able to sort through all 20 monoblocks and pick at least 4 relatively healthy ones to constitute a functional 24V battery.

In my experience, the large battery capacity put in (5 strings at 350AH per string. 5 x 350 = 1750AH) is much too large for the charging infrastructure to maintain properly and this big battery was doomed to a shorter than necessary service life because of it.

Rolls would recommend a charging current of 10% of the 1750AH capacity, or 175A of charging current. The MX60 solar charge controller is capable of 60A maximum, so even if the solar panels were driving the controller to it's full output at all times (an impossibility), the maximum charging current would only be about 1/3 what the battery needed.

When replacing the battery, keep in mind the need to match charging capability to battery capacity.

I'd imagine you will find 4 monoblocks healthy enough to make a battery of some capacity. It will get you started on familiarizing yourself with the system, and the dynamics of charging the battery from solar and from the Inverter via generator input. Also the dynamics of overnight battery discharge. That will put you in a good position to understand your needs when it comes time to replace the battery.

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Where to start?

Post by raysun » Fri Jul 10, 2020 4:19 pm

guardm16 wrote:
Fri Jul 10, 2020 3:08 pm
Inverter
Charge Controller
Battery minder?
Yes to all three.

fcwlp
Forum Czar
Posts: 541
Joined: Wed Jan 22, 2020 9:40 am
My RE system: GS8048A, FM80 w/3,600 W PV Fixed, FM80 w/2,700W on Zomeworks tracker, Mate3, 24 Trojan 2V L16 1100AH @ C20, Grid-Tied with Kohler 14RESA LPG Generator and MEP-803 Diesel if needed
I also install and maintain grid-tied and off-grid systems, details will be given for these system if required
Location: 80 miles NE of Phoenix at 5500'

Re: Where to start?

Post by fcwlp » Fri Jul 10, 2020 4:22 pm

You have a big battery bank. With five parallel strings of the Rolls S-460 (C100 of 460AH and C20 of 350AH) you have 1,750AH @ 24V. Most of us recommend no more than two parallel strings of batteries and a few will go to three. I will typically go with one string in my designs. With parallel strings the string with the lowest resistance gets the most current on charging (i.e., gets hotter than other strings) and most current drawn from when the inverter is inverting.

Can you read the date code on the batteries?

You have 12 solar panels. Given the vintage of equipment they could be anywhere from 100W to 200W panels. So if 150W you have a max of 1,800W or ~64A at 24V using 85% efficiency. Which would be consistent with the MX60 CC which outputs 60A. A Rolls FLA battery is normally charged at 10-13% of the C20 rate or 175A to 228A. So at best you are able to supply only 60A or 3.4% of the C20 rate.

Bottom line the current battery bank is way too large for the amount of PV that is available. If the batteries are still good, this is ok for a weekend cabin as they will have plenty of time to recharge while you are not there. As a retirement location you will have to optimize the battery and the PV supply.

The batteries will definitely need to be equalized. Get some DI water and make sure the plates are covered prior to initiating the equalization with your tech. Do not fill the cells before equalization as they will boil over.

You picked a good weekend to get out of PHX. We will probably just break 100 in Young. For those of you not in AZ, temps are supposed to hit 117 in Phoenix this weekend.

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