Why not use flooded lead calcium batteries. They last 30 years and have
basically no maintenance needs... And the equipment is designed for this
type of battery architecture.
On December 22, 2025 20:50:22 Chris Daum via RE-wrenches
<[email protected]> wrote:
RE: Closed loop communications… I have a customer who needs to replace
his old AGMs; he’s looking at getting something like 2500ah @ 24V and wants
LFPs. This is a battery based, grid tie system. His equipment is a pair
of XW4024s (Schneider – and he has NO interest in replacing his inverters)
and three Classic (Midnite) charge controllers. I’m concerned with
integrating the LFPs with his old inverter, but his Classics, I believe,
can be reprogrammed to accommodate the LFPs. This system was installed
around 2015 so the equipment is not new – but it’s basically been humming
along until a couple of weeks ago, when there was a week of 60 to 90 MPH
winds that killed the power for a while. This is near Boulder, CO (at 9000
ft elevation). His system worked fine til his old AGMs gave out. Their
power was out for ~3 days, then came on for 2 days, then went out again for
a couple of days. So he realized how undersized and old his batteries were.
If he gets some new LFPs, do you think they’ll work with this vintage
equipment? Any of your wonderful advice to pass along!? I’m thinking the
Classics can dial in the settings he needs.
Thanks, y’all!
Chris Daum
Oasis Montana Inc.
406-777-4309 or 4321
406-777-4309 fax
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