SimpliPhi and full charge

raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

SimpliPhi and full charge

Post by raysun »

I've been helping one of our forum members with integrating a SimpliPhi battery into their existing FlexPower One / VFXR3648a system.

The battery is 3 SimpliPhi 3.8-48-M for 225AH @ 48V.

The installation and commissioning went well. There is only one persistent issue - the battery will not readily fully charge.

Folks on this forum have described similar issues trying to charge a Phi battery to reach Charged Parameters Met, but I never got the impression the reports were similar to what is being demonstrated here. If the following description rings a bell, be sure to chime in.

Using the standard charging parameters from the Phi / Outback integration guide, Absorb Voltage = 56.4V and Absorb Time = 0.1H. Charging from the FM80 proceeds normally with a typical charge current of around 45A. When the battery reaches about 96% SoC as indicated by the FNDC, the battery voltage rises and the charger enters Absorb, timing out 6 minutes later at about 97% SoC at a charge current of approximately 27A.

The next day, a similar pattern is displayed, but about 2% earler, e.g.: 94% SoC, finishing Absorb at 95%.

At the end of a week, we would "force" a correction by running the charge cycle until Float, then manually Start Bulk. It takes an additional 5 "remedial charge" cycles to reach full battery capacity as indicated by a Charged Return Amps of 2%.

We tried a "long Absorb" of 54.4V @ 2H, and that was even worse, timing out in the high 80's.

All measured system voltages are nominal, and all device calibrations are spot-on.

This is such a marked contrast to my own Phi battery which reaches CPM without any trouble at all. So far, I'm puzzled.
User avatar
Mike Curran
Forum Emperor
Posts: 2805
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 VFXR3524A-01's series stacked, replaced GVFX's (2020)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS. Tigo 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 from 14 Talesun 275W, Enphase M215 microinverters

Battery systems operate in grid-tied, net metering w/backup mode
All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: SimpliPhi and full charge

Post by Mike Curran »

My PHI batteries are connected to Skybox so I don't have experience here, but looking at Phi's integration guide, end amps should be set at 0 on the FM80 and 4.5 (2% of 225A) on the FNDC. Also, FNDC charged time should be 1 minute. Raysun, I know you have far more experience with using PHI batteries in an FNDC-equipped system, but still why wouldn't these settings apply?
Screenshot_20220305-101532_Adobe Acrobat.jpg
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
provo
Forum Emperor
Posts: 1118
Joined: Thu Jul 27, 2006 4:34 pm
My RE system: 16 Evergreen EC-120 (4 strings, total 1920W)
2 SimpliPhi 3.8-m-24V (150Ah each)
One FM80
One VFXR3524A
Hub 10
Mate3s
FNDC
Honda EU3000is generator
Location: Sierra foothills

Re: SimpliPhi and full charge

Post by provo »

raysun wrote: Fri Mar 04, 2022 7:44 pm
Using the standard charging parameters from the Phi / Outback integration guide, Absorb Voltage = 56.4V and Absorb Time = 0.1H. Charging from the FM80 proceeds normally with a typical charge current of around 45A. When the battery reaches about 96% SoC as indicated by the FNDC, the battery voltage rises and the charger enters Absorb, timing out 6 minutes later at about 97% SoC at a charge current of approximately 27A.
My situation may be different since I have 24V SimpliPhis, but I never get CPM in 6m either. I enter absorb with ~28A (14A per block), so that's similar, but I need to bulk charge at quite low current (14A per block also) to even get CPM in 8m.

Rapid bulk stage (say 20A per block) makes CPM impossible even by 12m.

I don't get it either, but I charge slowly and am OK with 8m....
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

Mike Curran wrote: Sat Mar 05, 2022 7:23 am My PHI batteries are connected to Skybox so I don't have experience here, but looking at Phi's integration guide, end amps should be set at 0 on the FM80 and 4.5 (2% of 225A) on the FNDC. Also, FNDC charged time should be 1 minute. Raysun, I know you have far more experience with using PHI batteries in an FNDC-equipped system, but still why wouldn't these settings apply?Screenshot_20220305-101532_Adobe Acrobat.jpg
I omitted the complete set of parameters, and yes, all those apply.

FM80:
End Amps = 0

FNDC:
20220305_061238.jpg
My recommended approach is to adhere to the Phi charging parameters explicitly, and completely. That's what makes this so vexing. Doing so does not come anywhere near producing proper results.

As far as I can tell, its something internal to the battery.
Last edited by raysun on Sat Mar 05, 2022 8:30 am, edited 1 time in total.
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

provo wrote: Sat Mar 05, 2022 8:04 am
raysun wrote: Fri Mar 04, 2022 7:44 pm
Using the standard charging parameters from the Phi / Outback integration guide, Absorb Voltage = 56.4V and Absorb Time = 0.1H. Charging from the FM80 proceeds normally with a typical charge current of around 45A. When the battery reaches about 96% SoC as indicated by the FNDC, the battery voltage rises and the charger enters Absorb, timing out 6 minutes later at about 97% SoC at a charge current of approximately 27A.
My situation may be different since I have 24V SimpliPhis, but I never get CPM in 6m either. I enter absorb with ~28A (14A per block), so that's similar, but I need to bulk charge at quite low current (14A per block also) to even get CPM in 8m.

Rapid bulk stage (say 20A per block) makes CPM impossible even by 12m.

I don't get it either, but I charge slowly and am OK with 8m....
Its a similar issue. I thought of your approach while working on this. They have a unique situation of a very narrow window (approx. 2.5H) of anything like full sun, making "throttling" a challenge.

I have yet to deliberately recommend restricting charge rate, but will do so on a day of low discharge to see if similar results can be achieved.

I continue to compare that to my own experience, and wonder. While my system generally naturally "throttles" around 15A per block, it isn't necessary. If much higher charging rates are available, CPM is still reached in almost all cases @ Charged Time = 0.1H.

I'm beginning to think I'm the exception, rather than the rule.
provo
Forum Emperor
Posts: 1118
Joined: Thu Jul 27, 2006 4:34 pm
My RE system: 16 Evergreen EC-120 (4 strings, total 1920W)
2 SimpliPhi 3.8-m-24V (150Ah each)
One FM80
One VFXR3524A
Hub 10
Mate3s
FNDC
Honda EU3000is generator
Location: Sierra foothills

Re: SimpliPhi and full charge

Post by provo »

raysun wrote: Sat Mar 05, 2022 8:26 am
I'm beginning to think I'm the exception, rather than the rule.
Isn't "exceptional" a GOOD thing ??? :lol:
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

provo wrote: Sat Mar 05, 2022 8:36 am
raysun wrote: Sat Mar 05, 2022 8:26 am
I'm beginning to think I'm the exception, rather than the rule.
Isn't "exceptional" a GOOD thing ??? :lol:
😆

It would be for this, if it could be more readily duplicated, but then it wouldn't be exceptional, would it?

🤔
User avatar
EA6LE-ONE
Forum Czar
Posts: 809
Joined: Tue May 05, 2020 7:51 am
My RE system: System 1:
MATE3s, 3 x Radian GS8048A,
6 x FLEXmax 100, HUB10,
2 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 6 x FLEXware ICS Plus,
78 x PANASONIC VBHN325SA17 325W

System 2:
MATE3s, Radian GS8048A,
2 x FLEXmax 100, HUB10
1 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 2 x FLEXware ICS
21 x PANASONIC VBHN325SA17 325W
Location: Providenciales, Turks & Caicos Isl.

Re: SimpliPhi and full charge

Post by EA6LE-ONE »

did any of you tried to increase the the end amps value to a point that the CPM is achieved in 6 min?
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

EA6LE-ONE wrote: Sat Mar 05, 2022 9:15 am did any of you tried to increase the the end amps value to a point that the CPM is achieved in 6 min?
The Charged Return Amps, in this case, would have to be set to 27A to achieve CPM in 0.1H. That would be 12% of the C20 value, and 6X the 2% specification.
provo
Forum Emperor
Posts: 1118
Joined: Thu Jul 27, 2006 4:34 pm
My RE system: 16 Evergreen EC-120 (4 strings, total 1920W)
2 SimpliPhi 3.8-m-24V (150Ah each)
One FM80
One VFXR3524A
Hub 10
Mate3s
FNDC
Honda EU3000is generator
Location: Sierra foothills

Re: SimpliPhi and full charge

Post by provo »

EA6LE-ONE wrote: Sat Mar 05, 2022 9:15 am did any of you tried to increase the the end amps value to a point that the CPM is achieved in 6 min?
In my case, I could raise my CRA to 3% and get CPM within 6m. I consider that "lying to the FNDC". It would show CPM and do the reset, but I wouldn't really be at 100%.

Phi tech support has already approved going somewhat over 6m absorb time if Auto Charge Termination Control is enabled, so I believe that's the better option.
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

provo wrote: Sat Mar 05, 2022 9:57 am
EA6LE-ONE wrote: Sat Mar 05, 2022 9:15 am did any of you tried to increase the the end amps value to a point that the CPM is achieved in 6 min?
In my case, I could raise my CRA to 3% and get CPM within 6m. I consider that "lying to the FNDC". It would show CPM and do the reset, but I wouldn't really be at 100%.

Phi tech support has already approved going somewhat over 6m absorb time if Auto Charge Termination Control is enabled, so I believe that's the better option.
Yes. A slightly longer Absorb Time seems a palatable option. 0.2H is acceptable.

In this case 0.7H is required. That's well beyond the pale.
User avatar
EA6LE-ONE
Forum Czar
Posts: 809
Joined: Tue May 05, 2020 7:51 am
My RE system: System 1:
MATE3s, 3 x Radian GS8048A,
6 x FLEXmax 100, HUB10,
2 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 6 x FLEXware ICS Plus,
78 x PANASONIC VBHN325SA17 325W

System 2:
MATE3s, Radian GS8048A,
2 x FLEXmax 100, HUB10
1 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 2 x FLEXware ICS
21 x PANASONIC VBHN325SA17 325W
Location: Providenciales, Turks & Caicos Isl.

Re: SimpliPhi and full charge

Post by EA6LE-ONE »

provo wrote: Sat Mar 05, 2022 9:57 am
In my case, I could raise my CRA to 3% and get CPM within 6m. I consider that "lying to the FNDC". It would show CPM and do the reset, but I wouldn't really be at 100%.
Considering that the lithium doesn't like to be charged to 100% maybe is better to sacrifice a bit of capacity for longer life as well the achieving the CPM. Also one could play with the capacity declared in FNDC to match the amps charged in the battery.
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

EA6LE-ONE wrote: Sat Mar 05, 2022 10:14 am
provo wrote: Sat Mar 05, 2022 9:57 am
In my case, I could raise my CRA to 3% and get CPM within 6m. I consider that "lying to the FNDC". It would show CPM and do the reset, but I wouldn't really be at 100%.
Considering that the lithium doesn't like to be charged to 100% maybe is better to sacrifice a bit of capacity for longer life as well the achieving the CPM. Also one could play with the capacity declared in FNDC to match the amps charged in the battery.
Its true charging to 100% does increase anode degradation, but in practice its not enough to spend the time and effort "gimmicing" the charge profile to stop short. The ideal would be to keep the battery between 70% and 30% SoC, but monitoring and controlling that (as well as sacrificing capacity) isn't practical.

The other consideration is simply keeping the metering accurate. The current devices cannot be relied on unless synced periodically. The only useful sync point is 100%. Lithium chemistry and BMS holds out the potential of accurately monitoring PSoC, but in practice, few do so with any reliability. The cheap Chinese BMS are a joke in this respect, and very few folks are willing to add $1k - $2k to the cost of already very expensive battery blocks to add the feature.
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

Regarding CPM, my bank has had as few as 1 in a month to as many as 10 in a month (and some of the 10 happened twice on the same day). Initially, the first 6 months of service, I would typically have only 1-3 CPMs. Now, I'm having between 5-10 CPMs each month, but we are also having longer days and more sunshine. Also, my bank seldom gets below 70%SoC throughout the night and during the late morning to sunset bumps up against the 100%SoC each hour. I'm concerned staying at 100% all afternoon every day will shorten the life, but what can I do? Clearly, I have more capacity that I need most every day.
I suppose I could just switch off one of the 7 batteries so the SoC would drop more over night, but what would that do to the one I've switched off?
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

jainsw wrote: Wed Jun 22, 2022 9:12 pm Regarding CPM, my bank has had as few as 1 in a month to as many as 10 in a month (and some of the 10 happened twice on the same day). Initially, the first 6 months of service, I would typically have only 1-3 CPMs. Now, I'm having between 5-10 CPMs each month, but we are also having longer days and more sunshine. Also, my bank seldom gets below 70%SoC throughout the night and during the late morning to sunset bumps up against the 100%SoC each hour. I'm concerned staying at 100% all afternoon every day will shorten the life, but what can I do? Clearly, I have more capacity that I need most every day.
I suppose I could just switch off one of the 7 batteries so the SoC would drop more over night, but what would that do to the one I've switched off?
If concerned about holding the battery at 100% SoC, lower the Float voltage. The Phi specification of 54V will keep the battery at 100%. I happen to use 53.1V, as with our typical loads in the afternoon, that discharges the battery about 1 - 2% at a 0.1A rate.

Also, I'd not get too hung up on whether the system registers CPM. I'm finding it to be the exception, rather than the rule, for most systems, though at a loss to explain why exactly. My system seems to be that exception, setting the CPM flag virtually every day. As a rule, most systems time out on the short (0.1H) Absorb time before the charge current declines to Charged Return Amps. The "shortfall" is fairly small. SimpliPhi just shrugs the issue off, claiming its a quirk of the monitor rather than an effect of the battery (I disagree, but that's academic.)
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

Thanks raysun for the response. I actually had the float set at 53.1v for several months, but there's been some discussion of whether or not that was useful. My goal is to have these batteries last as long as possible, so if keeping them off the 100%SoC for several hours a day will help in that regard, it will reset the voltage back to 53.1v from 54v. I have plenty of bank capacity so it's not an issue that I squeeze every volt out of it. Thanks again.
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

jainsw wrote: Thu Jun 23, 2022 3:19 pm Thanks raysun for the response. I actually had the float set at 53.1v for several months, but there's been some discussion of whether or not that was useful. My goal is to have these batteries last as long as possible, so if keeping them off the 100%SoC for several hours a day will help in that regard, it will reset the voltage back to 53.1v from 54v. I have plenty of bank capacity so it's not an issue that I squeeze every volt out of it. Thanks again.
The Phi tech support person I talked with was indirectly dismissive of the notion. To paraphrase: If you want to use a lower voltage and miss out on a few amp hours of charge, its OK.
Hardly a ringing endorsement for the approach.
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

raysun, the inverter won't let me change the voltage to 53.1v like for the CCs. I forgot do you have to set the inverter at a different voltage?
Screen Shot 2021-10-05 at 6.29.02 PM.png
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

jainsw wrote: Thu Jun 23, 2022 3:49 pm raysun, the inverter won't let me change the voltage to 53.1v like for the CCs. I forgot do you have to set the inverter at a different voltage?Screen Shot 2021-10-05 at 6.29.02 PM.png
Phi specs call for no Float on inverter charging. Set:
Float Voltage = (any reasonable value, e.g. 54.0V)
Float Time = 0H
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

raysun, I looked back in this string and found your settings and you had the CCs at 53.1v and the inverter at 52.8v, so that is where I have set mine for the time being.
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

raysun wrote: Thu Jun 23, 2022 4:04 pm
jainsw wrote: Thu Jun 23, 2022 3:49 pm raysun, the inverter won't let me change the voltage to 53.1v like for the CCs. I forgot do you have to set the inverter at a different voltage?Screen Shot 2021-10-05 at 6.29.02 PM.png
Phi specs call for no Float on inverter charging. Set:
Float Voltage = (any reasonable value, e.g. 54.0V)
Float Time = 0H
[/quote
#-o :grin: thanks again
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

the inverter at 52.8v
Just some random number I picked. I've since set it to 54.0V because that's the published spec, and I didn't want anyone reading my config thinking I had some secret reason for using an odd number like 52.8V. 😆
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

raysun wrote: Thu Jun 23, 2022 4:11 pm
the inverter at 52.8v
Just some random number I picked. I've since set it to 54.0V because that's the published spec, and I didn't want anyone reading my config thinking I had some secret reason for using an odd number like 52.8V. 😆
:grin:
I already see a benefit of changing the float to 53.1v as I'm now down to 98%SoC instead of 100%SoC for hours on end.
raysun
Forum Emperor
Posts: 8022
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: SimpliPhi and full charge

Post by raysun »

If it draws more than is cared for at the end of the day, raise Float voltage to 53.2V and evaluate, though in the case of that battery with huge overcapacity, its somewhat academic.

If there ends up being too much PV capacity simply wasted in the summer months, open up a roadside stand offering free charging to homeless Tesla owners.
jainsw
Forum Guru
Posts: 437
Joined: Mon Dec 28, 2009 10:54 am
My RE system: My setup is a 48v system and is comprised of the following components:
12-ES190 Evergreen solar panels-pole mount non-auto tracking, 4 220 Volt GE panels fixed mount
12-Hanwha Q Peak 300watt panels
1-Outback FM60 PV Charge controller 60a MPPT, 12-60 vdc. 60a output
1-Outback FM80 PV CC, 80a MPPT
1-Outback VFX3648 3.6kw, 120vac output
1-Mate3s with OpticsRE
1-Outback Hub
1-Outback FNDC
7-SimpliPhi 3.8-48v-75Ah Lithium batteries

Re: SimpliPhi and full charge

Post by jainsw »

raysun wrote: Thu Jun 23, 2022 4:24 pm If it draws more than is cared for at the end of the day, raise Float voltage to 53.2V and evaluate, though in the case of that battery with huge overcapacity, its somewhat academic.

If there ends up being too much PV capacity simply wasted in the summer months, open up a roadside stand offering free charging to homeless Tesla owners.
:lol: :lol:
Post Reply