[RE-wrenches] Midnite Powerflo16 to old OB inverters
Jeremy Rodriguez
allsolarjeremy at msn.com
Mon Feb 3 19:11:53 PST 2025
Today I installed 3 of the MN
POWERFLO 5 batteries with an OBVFX3648
Per the battery label I was able to set the inverter LBCO to 46 vdc.
I see that the battery BMS range
Is 44.8-58 vdc
We should be good to go.
Jeremy Rodriguez
Solar Installation / Design
All Solar, Inc.
1453 M St.
Penrose Colorado 81240
Sent by Jeremy's iPhone. Sorry for typos and shorthand.
On Feb 3, 2025, at 1:47 PM, Nick Lucchese via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
Here is the voltage vs SOC approximation chart from Midnite. Was helpful for me on my first couple installs as I awaited some additional details about their batteries.
Nick
On Mon, Feb 3, 2025 at 6:50 AM William Bryce via RE-wrenches <re-wrenches at lists.re-wrenches.org<mailto:re-wrenches at lists.re-wrenches.org>> 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 at lists.re-wrenches.org<mailto:re-wrenches at 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 at lists.re-wrenches.org<mailto:re-wrenches at 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
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<Powerflo16 Battery SOCvsVoltage.jpg>
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