[RE-wrenches] SMA SB and LiFe

[Lloyd Hoffstatter]

Hey Glenn,
I just started running a LIFEPO4 battery with a Sunny Island, no closed loop communication but with settings pretty much what Fortress
has on their Sunny Island sheet.  Settings are lower than what some LIFE’s specify, to avoid a voltage jump / high voltage error at the end of the charge cycle from what I’ve seen.

Best regards,
Lloyd

Lloyd Hoffstatter, M.S. Applied Solar Energy
NABCEP Inaugural Certified PV Installer Emeritus
Director, Sunstruck Consulting
Lloyd at SunstruckConsulting.com<mailto:Lloyd at SunstruckConsulting.com>
845-657-8132 (office)
914-844-3404 (mobile)

From: Glenn Burt via RE-wrenches<mailto:re-wrenches at lists.re-wrenches.org>
Sent: Monday, January 2, 2023 4:15 PM
To: RE-Wrenches<mailto:re-wrenches at lists.re-wrenches.org>
Cc: Glenn Burt<mailto:glenn.burt at glbcc.com>
Subject: [RE-wrenches] SMA SB and LiFe

Hello all – best wishes for the new year.

I have a client with an aging (dead) AGM (16x Concorde PVX-3050T) battery bank with two Sunny Island 5048 inverters (and a few SB in the mix too) in a GTWB configuration.
Has anyone successfully replaced an AGM battery bank with a LiFe ESS solution with closed loop comms and Sunny Islands?
Something like a Fortress eVault max?

Or should I simply replace the existing AGM’s with the same model batteries and let it go another 10 years?

Thanks for the feedback!
Glenn

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