Midnite just changed their absorb voltage to 56.4V. For what its worth,
I treat the batteries from manufacturers exactly the way they say, I
don't want to do anything that may jeopardize the warranty. Also with
LFP batteries, its not just a pile of cells, no doubt each manufacturer
has their own tweaks to their proprietary BMS, some have heat, some
don't, all absorb set points are not the same, etc.
Bill
Feather River Solar Electric
Bill Battagin, owner
4291 Nelson St. (Shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530-284-7849, 258-1641(cell)
CA. C10 Lic # 874049
Solar Powered since 1982
Home of the Sunny Side Up
On 2/3/2025 6:49 AM, William Bryce via RE-wrenches wrote:
Hi Jay
The settings for the MNS Batteries are on a sticker on each battery.
BMS- LVCO 44.8 HVCO 58V (The HVCO is not on the sticker)
LVCO (inverter) 46.0
Float 54V
Bulk 56.1V
The rest of the you can set to what you want, the battery does not care.
All Prismatic cells operate mostly the same, and the MNS Batteries use
A+ Automotive cells MFG by EVE.
Thanks
Logan
On Mon, Feb 3, 2025 at 8:47 AM Jay via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Hi Bill
I tried and failed to find any setting information on that battery
besides charge and float.
Kinda need to know things like LVD, recommended LBCO, etc.
But if it’s similar to other prismatic cells you should be able to
set the OB inverter to a LBCO that works without having to go
through a aux relay.
Jay
> On Feb 2, 2025, at 9:53 PM, Bill Battagin via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
>
> Have any off-gridders done a system with Powerflo16's to power
pre-LFP OB/FX inverters? The FM80's LFP settings in this system
are compatible with LFP but I'm looking for options other than
using the Aux in the CC's wired to a NC relay and from there to
the inverter on/off landings in the green terminal of the OB/FX
for the LBCO and reconnect function.
>
> I've been down this road before, though a different
equipment. I've used the Aux from a Classic for inverter LBCO and
reconnect though its never been fully "tested", although I read
"open" and closed" at the un-wired aux landing when I forced it
with a high LBCO setting. Just thinking about the highest
reliability.
>
> Thanks in advance.
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, owner
> 4291 Nelson St. (Shipping)
> 5575 Genesee Rd. (USPS, UPS)
> Taylorsville, CA 95983
> 530-284-7849, 258-1641(cell)
> CA. C10 Lic # 874049
> Solar Powered since 1982
> Home of the Sunny Side Up
>
>
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