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 > 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] <[email protected]>* *Owner|Principal, VT Solar, LLC* *Celebrating our 31st 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
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