In my experience, when the LFP batteries are connected in an "Open Loop"
(no comms), you typically want 20-30 minutes per parallel connected
battery. When connected in closed loop comms, you can set this for much
shorter (1/3 to 1/2) as the battery has control over the absorb timers
based on the st
Jeremy,
Signature solar techs have told me 30 min.
Carl Hansen
Hansen&Sun Elect.
On 2024-11-07 6:31 AM, Jeremy Rodriguez via RE-wrenches wrote:
Wrenches
Signature Solar has no absorb time recommendation for their rack mount EG4s !
I’m setting up a system with a 1200 ah battery stack. Six
Hi Jeremy
When I’ve watched eg4 inverter/battery closed loop do its thing, it spends
seconds at top voltage setting.
Depending on what CC settings you have, just a few minutes is all you need.
Jay
> On Nov 7, 2024, at 6:31 AM, Jeremy Rodriguez via RE-wrenches
> wrote:
>
> Wrenches
> Sign
Other LiPO4 brands seem to have very short absorb times. Simpliphi,
Fortress, and Home grid all are 0.1 hrs or 15 minutes, depending the
settings available on the CC.
Ray Walters
Remote Solar
On 11/7/2024 6:59 AM, Jay via RE-wrenches wrote:
Hi Jeremy
When I’ve watched eg4 inverter/battery cl
Wrenches
Signature Solar has no absorb time recommendation for their rack mount EG4s !
I’m setting up a system with a 1200 ah battery stack. Six in parallel.
What would be a good absorption time? No battery comms to CCs
5925 wPV
Jeremy Rodriguez
Solar Installation / Design
All Solar, Inc.
[2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
---- Original Message
Subject:
Re: [RE-wrenches] EG4 Equipment
Date:
2024-02-16 3:11 pm
From:
Dave Angelini Offgrid Solar via RE-wrenches
To:
RE-wrenches
Cc:
Dave Angelini Offgrid Solar
Reply-To:
offgridso...@sti.net,
[6] [7] [8] [9] [10] [11]
Genera
-
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
---- Original Message
Subject:
Re: [RE-wrenches] EG4 Eq
gt; Dave Angelini Offgrid Solar
>
> "we go where powerlines don't"
> <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/
> <http://members.sti.net/offgridsolar/>
> e-mail offgridso...@sti.net <mailto:offgridso...@sti.net>
> text
idsolar1.com/ [8] [7]
e-mail offgridso...@sti.net
text 209 813 0060
Original Message ----
Subject:
Re: [RE-wrenches] EG4 Equipment
Date:
2024-02-16 3:11 pm
From:
Dave Angelini Offgrid Solar via RE-wrenches
To:
RE-wrenches
Cc:
Dave Angelini Offgrid Solar
Reply-To:
off
[mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf
Of *Drake Chamberlin via RE-wrenches
*Sent:* Saturday, February 17, 2024 9:43 AM
*To:* RE-wrenches
*Cc:* drake.chamber...@redwoodalliance.org
*Subject:* Re: [RE-wrenches] EG4 Equipment
I
g and control. I can understand much
>> better the operation of systems with easy access to historic data and I
>> save a butt-load of driving. I wish the Outback and Sunny Island files
>> could be obtained remotely for better analysis.
>>
>>
>>
>> William
>&
hamberlin via RE-wrenches
*Sent:* Saturday, February 17, 2024 9:43 AM
*To:* RE-wrenches
*Cc:* drake.chamber...@redwoodalliance.org
*Subject:* Re: [RE-wrenches] EG4 Equipment
I fully agree that off grid solar has taken a major downturn. Once
the equipment became software based,
r.com
>
> CA Lic. 773985
>
>
>
>
>
> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
> Behalf Of *Drake Chamberlin via RE-wrenches
> *Sent:* Saturday, February 17, 2024 9:43 AM
> *To:* RE-wrenches
> *Cc:* drake.chamber...@redwoodalliance.
I would challenge that inspector's assumption. It starts becoming
precedent if you don't. I have challenged many rulings, and have lived
to tell the tale. There's a process and you just politely go through
the process. Often just mentioning that I will challenge a particular
assumption like
Jay - Despite the exceptions in NEC 480.3 and 706.5 for lead-acid not
needing to be Listed, and the maximum capacity exception for lead-acid in
IFC 1206.2.8.3, one of our local AHJs is now insisting that ALL residential
ESS, including lead-acid, even off-grid with no utility interconnect, must
be U
To this point I'm not aware of a lead battery that is compliant to 9540 or
1973...we are still trying to work out the kinks of these UL codes.
This what happens when people try to blanket fix a problem with one
technology and apply it across the board without a full understanding of
the differ
A number of people have mentioned strict code compliance.
How are lead batteries dealing with this?
thanks
jay
> On Feb 17, 2024, at 12:27 PM, Ray Walters via RE-wrenches
> wrote:
>
> Chris;
>
> I was definitely moving to the LFP camp for off grid for all the same reasons
> you mentioned,
Becareful with the EG4s and AGMs. Last I checked the EG4s couldn't be
properly programmed to charge at a high enough voltage to properly charge
some of the heavier plated AGM. Surrette and Full river AGMs need to be
charged at 58.8 temp compensated to -4mv/deg/c...
The EG4s like the Sol Arks
I used to be Lead AGM for Off-grid; I used the Pure Lead Thin Plate for an
install 4 years ago from AltE, and it is still working fine. I believe the
LiFe is the battery for off-grid and the trick is to find the correct BMS,
On Sat, Feb 17, 2024 at 11:43 AM Drake Chamberlin via RE-wrenches <
re-w
Chris;
I was definitely moving to the LFP camp for off grid for all the same
reasons you mentioned, but I've just had too much trouble, so I'm
heading back to lead acid for now. I missed the acid burned jeans, its
a "look".
Seriously, you mentioned customers coming back to a lead acid b
. 773985
*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *Drake Chamberlin via RE-wrenches
*Sent:* Saturday, February 17, 2024 9:43 AM
*To:* RE-wrenches
*Cc:* drake.chamber...@redwoodalliance.org
*Subject:* Re: [RE-wrenches] EG4 Equipment
I fully agree
Surrette and Full river AGM's Been berry berry good to me!
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
On 2024-02-17 9:43 am, Drake Chamberlin via RE-wrenches wrote:
I fully agree that off g
I fully agree that off grid solar has taken a major downturn. Once the
equipment became software based, the reliability dropped. Sure, there
are nice features available with these cyber enhanced systems, but the
cost in reliability makes being energy independent off the grid hard to
accomplish.
fortress is making improvements to their firmware for sure. The fortress envy 12 has generator warmup/cool down which is a really important feature IMO. The eg4 not. Nor does the Deye sol ark. JayOn Feb 16, 2024, at 8:48 PM, Chris Sparadeo via RE-wrenches wrote:Howie,The EG4 18K and the Fortress
Beyond the listing issues, there are also the NFPA 855 maximum energy
storage limitations to consider that battery manufacturers and distributors
are not considering in their marketing, leading consumers to conclusions
that won't work. I have a client who purchased three full racks of EG4 LL
as a k
Howie,
The EG4 18K and the Fortress Envy are both made by the same manufacturer,
LuxPower. Google the LXP 12K and it will all make sense. I can’t speak for
EG4, but I know that Fortress has progressed from simply white labeling
this unit to doing a significant amount of programming and additional
The issue I'm having with EG4 specifically and Signature Solar in general
is a scattershot approach to UL and NRTL listings. Those listings may not
be important to various DIY folks of varying levels of "git-er-done," but
listings are critical for my business. Some products they sell are Listed
per
Dave,
I took a quick look at the Discover AES battery specifications you
linked to and didn't find an entry for how much power the BMS uses
when the battery is turned ON, but doing nothing? In my experience
the Fortress eFlex BMS uses on the order of 12-15 W, and it would be
interesting to kn
Howie, I think you should also look again at the Discover rack mount
system in the link below. Nice 75 year old company that made it's name
on Locomotive batteries. Their prices are way down around 14 K for 30Kwh
with heaters. If you have not looked at Lynk2 their gateway closed loop
into SMA,
We gave EG4 and Signature another chance after promises from their dealer
oriented support department that we could expect better service from them.
We had an EG4 BMS crap out a couple months ago after only a few months.
Lots and lots of communications with Signature and we still don’t have a
BMS o
Hi All,
I've searched the archives for info pertaining to EG4 inverters and
batteries. The comments have been mostly positive. I have stayed away from
EG4 until now in part, for the reason the Michael Morningstar suggested
last June - that is, they seemed very oriented to the DIY market and not
r
Hi Folks,
Just wanted to make a correction on the EG418kPV of a statement made
during the AC Coupling thread.
The EG4 18kPV does have frequency shift based AC Coupling. The
confusion comes from the fact that like Sol-Ark there is a SOC set-point
override feature for AC Coupling but the vide
Hi All
Yes I’ve been working with EG4s for some time now. I installed 30 (154KWH) on 4
Sunny Island’s in Feb and that system has been working flawlessly. I’ve also
done a 4 (20.5KWWH) battery system and a 6 battery (30.7 kWH) on single
SOl-ARKs. And I’ve consulted in amd been monitoring some m
. 6500 watts at 120v?
Dana Orzel - E - d...@solarwork.com - C - 208.721.7003
From: RE-wrenches On Behalf Of Dave
Tedeyan via RE-wrenches
Sent: Thursday, July 28, 2022 1:50 PM
To: RE-wrenches
Cc: Dave Tedeyan
Subject: [RE-wrenches] EG4
Hi all,
Does anyone have any
Check out YouTube videos by Will Prowse. He’s used them and taken them apart.
It would be better if any wrenches have used them though
Brad
Sent from my iPhone
> On Jul 28, 2022, at 12:49 PM, Dave Tedeyan via RE-wrenches
> wrote:
>
> Hi all,
>
> Does anyone have any experience with EG4 pr
Hi all,
Does anyone have any experience with EG4 products? I am doing an off-grid
consultation for someone who plans on getting EG4 inverter and lithium
batteries. The equipment seems so cheap, yet appears to be somewhat legit.
They do at least have UL1741 listing. But their 6500w inverter/charger
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