Default efficiency on the TriMet was 94%, needs to be quite a bit higher
for Li+. I'd try 98%.
2nd point: Customers have always obsessed about meter readings: they
need to take a chill pill, and accept its not going to be better than
+/- 10% accuracy. Or get a Fortress battery with built in SOC readings
on the unit.
On 9/2/2022 1:13 PM, Eric Smiley via RE-wrenches wrote:
I am having the same problem - same situation. I am going to tweak the
efficiency value and see if it helps.
*Eric Smiley,* Project Manager
[email protected] <mailto:[email protected]>
T: 250.703.6004 <tel:+12507036004>
T: 888.386.0116 <tel:+18883860116>
*VIRIDIANENERGY.CA <https://viridianenergy.ca/>***
**<https://viridianenergy.ca/>**
On Fri, 2 Sept 2022 at 11:43, Kirk Herander via RE-wrenches
<[email protected]> wrote:
I’ve never installed simplify batteries. Do they make their own
state of charge monitor?
The trimetric has a perimeter called charge efficiency % You can
tweak that to get it to match the any benchmark more closely.
Also the trimetric should be reset to full on a regular basis,
When you have confidence the batteries are full. All trimetrics
drift off over time, especially given the unique charge
characteristics of lithium-ion’s versus lead acid batteries.
On Fri, Sep 2, 2022 at 2:32 PM Matt Sherald via RE-wrenches
<[email protected]> wrote:
Hello Friends,
I have an off-grid customer for whom I recently installed some
SimpliPhi 3.8kW batteries. This is an older system and it has
a Trimetric battery monitor that the homeowners have used for
years to keep an eye on their battery bank.
The SimpliPhi batteries appear to be working fine at the site,
but the homeowners feel uneasy b/c the Trimetric is reporting
that they are finishing each charging cycle with an amp-hour
deficit. The voltage of the SimpliPhi batteries indicate that
they are getting fully charged and are doing so fairly early
in the AM (solar is the primary power source).
I've spoken with SimpliPhi tech folks and their hunch is that
the Trimetric is not reporting correctly. They suggested that
a Victron BMV-712 would be more accurate at tracking Percent
Full etc...
Do you folks think that the Victron is better at counting Ah
in/out for Li batteries? Or is the Trimetric adequate - do I
maybe just need to adjust the settings?
Anyway, the implication that the Victron BMV was better at
monitoring Li batteries has me curious and I will enjoy
hearing what the group thinks.
Thanks for your time!
-Matt
--
Matt Sherald
PIMBY Energy, LLC
304-704-5943
www.getpimby.blogspot.com <http://www.getpimby.blogspot.com>
www.getpimby.com <http://www.getpimby.com>
_______________________________________________
List sponsored by Redwood Alliance
Pay optional member dues here: http://re-wrenches.org
List Address: [email protected]
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
There are two list archives for searching. When one doesn't
work, try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
http://www.members.re-wrenches.org
--
*Kirk Herander / **[email protected]*
*Owner|Principal, VT Solar, LLC*
*/Celebrating our 31^st Anniversary 1991-2022!!/*
*www.vermont.solar*
<https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0>
dba Vermont Solar Engineering
802.863.1202
_______________________________________________
List sponsored by Redwood Alliance
Pay optional member dues here: http://re-wrenches.org
List Address: [email protected]
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
There are two list archives for searching. When one doesn't work,
try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
http://www.members.re-wrenches.org
_______________________________________________
List sponsored by Redwood Alliance
Pay optional member dues here:http://re-wrenches.org
List Address:[email protected]
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
http://www.members.re-wrenches.org
_______________________________________________
List sponsored by Redwood Alliance
Pay optional member dues here: http://re-wrenches.org
List Address: [email protected]
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
http://www.members.re-wrenches.org
