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#51
You might think about putting a little foam filter on the fan.  I've seen how much dust gets caught in one when it runs continuously.  Not the best stuff to cover electronics with.
#52
The "Classic" charge controller / Re: Fan spin in Classic (and l...
Last post by binkino - July 17, 2026, 11:39:28 AM
short update ...
It really seems to work; the temperature has stabilized.
It's crazy how much heat is being blown out of the top of the case :)
We're having rain now ... - I'll keep monitoring the situation over the coming hot days. I'm also making a few final improvements to the 3D models.
#53
The "Classic" charge controller / Re: Fan spin in Classic (and l...
Last post by binkino - July 16, 2026, 11:45:21 AM
3 more pictures
#54
The "Classic" charge controller / Re: Fan spin in Classic (and l...
Last post by binkino - July 16, 2026, 11:44:36 AM
Some experiments with fan adapters ;-)

The neck on the first version is too short; it hits the metal plate behind the "lassic unit in my setup ;( I've created an extension for it, which is printing right now.
Then there's another version with a longer funnel (I'll print that one later while I'm at work) to test out.
The version with the 90° bend is currently just an idea for the "East" Classic, as I have very little space next to it.
There is also a version with an offset funnel; I still need to test whether that fits.

After that, I'd be happy to make the print files available—I'm sure others could use something like this, too.

I had some spare fans lying around. This 60x60mm one is a left over from servicing the digital projector in my cinema - they have to be replaced regularly but still work perfectly.
#55
Luis just posted something the other day
https://midniteftp.com/forum/index.php?topic=9823.0

larry
#56
The "Classic" charge controller / Re: Fan spin in Classic (and l...
Last post by binkino - July 16, 2026, 07:30:17 AM
I noticed today that the "South" Classic is getting very hot again and it is current limiting.
The fans are running; I can feel the hot air exhausting.
I might need to install an external fan, as shown here: https://midniteftp.com/forum/index.php?topic=9823.0
Maybe an extremely powerful fan that forces air into the side opening.
Thanks to 3D printing, everything can be adapted ;-)

Or, if I had any of those case front panels lying around, I could cut open the lower section and mount a powerful fan right there on the front.
Are there any 3D print files (.stl) for the case, or something similar? :D
#57
The "Classic" charge controller / Re: Generator control with AUX...
Last post by qcda1 - July 15, 2026, 07:32:16 PM
Quite embarrassing!!! Don't know how I missed this... Brain fart??? Works like a charm. I will make a new version of ha_Midnite_Classic HA integration to include the ability to set the function of Aux1 and low and high SOC% setpoints for generator control.

Best regards,

Daniel.
#58
Lithium / Re: MNPowerflo 5 question
Last post by FNG - July 15, 2026, 10:24:35 AM
I believe we emailed back and forth on this but my thinking is the cells are getting out of balance.

keep in mind a BMS will reset to 100% SOC on high cell voltage so if one cell is lagging behind or ahead the battery will go to 100% and then drain faster as that cell is not aligned with the others.

What is your float voltage on the Classics? if my memory serves me the powerflo5 doesn't start balancing until 54.8V

I personally run my float voltages on my lithiums at 55 so they always balance
#59
Barcelona / Re: Barcelona
Last post by FNG - July 15, 2026, 10:21:39 AM
Float Time is only for inverters so without a Rosie or Little Rosie it will not show in the menu.

From what I am reading you are concerned over the time to fill the battery 60% correct?

12 batteries is 61.4KWH if we need to fill 60% that would be 37KWH at 6KWH would be 6.14 hours with no losses etc
#60
Barcelona / Re: Barcelona
Last post by Wizbandit - July 15, 2026, 06:29:53 AM
I suspect FLOAT TIME is for the Rosie Charger...
I never paid attention, I have 2 systems, my House System AKA Garage Power Room only has Hawkes Bays and Classics with a Pre-MNAIO10K AIO Inverter, that system is missing the setting.  The Wood Shop System has it, 2 Rosies, 2 Hbays and a Barcelona.

JAMES