| Logan
Is MidNite making the AIO or is it rebrand like the other guys?
If MidNite is actually making it, that adds a whole new level of interest. MidNite makes great products already. This would be a game changer.
Thank you,
Maverick
Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
• Solar Commander Remote Power
• SunFlow Systems Cathodic Protection
maver...@mavericksolar.com
512-460-9825
On Apr 10, 2024, at 10:54 AM, William Bryce via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
All
As a Beta tester and being a part of the development of the MNS All in One, MNS is working to ensure that the current limitations from the use of LA batteries will be addressed and supported.
MNS is addressing the concerns of using an AOI inverter because failure will require the R&R of the unit. This AIO is designed to be completely field serviceable and MNS will stock the boards and will provide the technical help to get the system back up and running in the field.
Thanks
Logan Good Morning Wrenches... When it comes to lead batteries, just be cautious of the all-in-ones and some of the hybrid inverters. Most of these inverters were not designed for Lead batteries and will struggle to charge them, resulting in sulfation (undercharging) issues. Eventually, this will lead to swelling of VRLA or excessive gassing on Flooded Batteries. Unfortunately, many of the "Hybrid" or "All-in-One" inverters released in the past 5-8 years are tailored more to lithium-chemistry batteries. I can't tell you how many battery banks have been cooked over the past couple of years due to the inability to control charging settings. If you can't control the Bulk/Absorb Voltage and Time, as well as the end amps termination setpoints, you will generally struggle to get and keep a Lead-Acid battery charged regardless of the battery you are using. I looked at the Midnite site and I don't see a user manual yet, once it's posted I'll take a look and see if it's compatible for Rolls Batteries, I'm pretty sure it will as Midnight has been asking battery charging questions the last couple of years. ![]() Steve Higgins ⋅
Technical Services Manager
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Can you explain what changes the eg4 18 inverter has vs the Envy as to LA programming?
To me the Envy has a big advantage due to it having AGS warm up/cool down that the EG4 does not.
Jay
John, If you are thinking of pairing the Envy with lead-acid batteries, I would strongly suggest not doing it. Even though Fortress sales advertises the Envy to be compatible with lead-acid, after trying it in my off-grid home, I would emphatically say that it is not. The programming is inadequate, to put it kindly. And their support really doesn't have a clue about lead-acid - Fortress support literally said that they don't recommend pairing the Envy with l-a. However, I don't have an opinion about how it does with closed loop Li batteries.
I did recently install an EG4 18k system, off-grid, with the client's knowledge that this was a bit of an experiment for me. Both the Envy and the EG4 are made by LuxPower and have been, to date, physically and programmatically almost identical. I had stayed away from EG4 since it seemed to be primarily aimed at the DIY market. However, the 18k appears to be a serious contender so far, although this installation is a fairly low stress situation. I've been fairly impressed with the system. While this 18k is paired with EG4 Lithium batteries, EG4 has been making adjustments to the firmware to make it much more friendly to lead-acid. If you decide to go this route, check with EG4 (installer support - ask for Jarrett or Colt) to see where they are at with upgrading the firmware. I am also eagerly awaiting Midnite's AIO entry...
Time will tell where the failure modes are. I still don't like all the eggs in one basket. Do you have to send the units back for repair? Had enough of that with Trace SW series inverters.. For off grid, I'll stick to the tried and true for now. For Grid tie it is just a financial hit. For off-grid power loss it is more important to deal with right away..
I am going to try a Fortress Envy at my off grid home but will keep my Outback field repairable VFXR wired in just in case. I had a massive lightning strike between my house and a guest cabin 1/4 mile away and I lost power from my Fortress Eflex battery at the cabin and my Outback inverter at my house. I replaced the control board on my inverter ( I always keep one in reserve as it is usually the only board failure due to lightning) and was back on line in 1/2 hour and Fortress rushed me a new BMS board for the E-flex and a day later and a half hour swap had it back in service, Now it is a different story with 2 Simpliphi batteries I have from a customer that failed. I have to ship them to California to have them evaluated to see if we had damaged them by misuse. Lots of expense and time lost.
John Blittersdorf CV Wind Service / Off Grid Vermont 802-770-8625
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