Recent posts

#11

MNGP2 specific / Re: Beta Firmware release and ...

Last post by FNG - October 27, 2026, 11:19:58 AM

Released 26.10.07.00

Added support for Solar Assistant to do control on the system

#12

The Rosie / Re: Is there a way to get the ...

Last post by FNG - October 27, 2026, 11:07:53 AM

So I did a bunch of research on that generator and all info I find advises DO NOT parallel the two outputs even though they are in phase.

#13

The Rosie / Re: Is there a way to get the ...

Last post by FNG - October 27, 2026, 10:53:36 AM

I would check with onan and see if the 2 outputs can be paralleled for 120V, if they can Wizbandint is right 
1- Set Rosie for 120/120
2- Physically connect L1 and L2
Now the 26A charge rate will get you 120A dc charge with 60A breaker size BUT do not try this unless Onan says its ok. A quick sanity check would be to measure between AC Hot one and AC Hot two on the onan and see if you get any voltage? If the 2 neutrals are connected and you measure 0v between the 2 hots than they are in phase but still double check with onan

I believe we already tested that back in June?   The Onan is wired to l1 and l2, you had me change to 120/120 and it still only produced half the amperage.  Am I misunderstanding something, are you saying to connect both those hots to L1, and not to l2? Or?  This is quickly becoming a difficult way to do tech support.  -Bill 

This is what I think both Wizbandit and Ryan are saying.
Contact Onan and ask them for your particular Onan generator model if the two 120v phases can be hooked together. Then if they say yes, connect to L1 and L2 of the Rosie , and then use a piece of wire to connect L1 and L2 together. And then do the rest of the stuff they said - breaker size and other rosie setup.

I could be wrong, but that is how I read it.
Hope it works out for you.

Larry

Exactly, When in 120/120 mode with L1 and L2 paralleled it will draw the rated current up to AC breaker size, so if breaker size is set for 60 for example it will draw a max of 30 on L1 and 30 on L2.

Another solution in future cases may be 2 Little Rosies as it seems that's what they generator is really looking for is 2 completely isolated systems. I will be very curios if the 2 windings can be phased together

#14

The Rosie / Re: Is there a way to get the ...

Last post by ClassicCrazy - October 26, 2026, 02:36:45 PM

I would check with onan and see if the 2 outputs can be paralleled for 120V, if they can Wizbandint is right 
1- Set Rosie for 120/120
2- Physically connect L1 and L2
Now the 26A charge rate will get you 120A dc charge with 60A breaker size BUT do not try this unless Onan says its ok. A quick sanity check would be to measure between AC Hot one and AC Hot two on the onan and see if you get any voltage? If the 2 neutrals are connected and you measure 0v between the 2 hots than they are in phase but still double check with onan

I believe we already tested that back in June?   The Onan is wired to l1 and l2, you had me change to 120/120 and it still only produced half the amperage.  Am I misunderstanding something, are you saying to connect both those hots to L1, and not to l2? Or?  This is quickly becoming a difficult way to do tech support.  -Bill 

This is what I think both Wizbandit and Ryan are saying.
Contact Onan and ask them for your particular Onan generator model if the two 120v phases can be hooked together. Then if they say yes, connect to L1 and L2 of the Rosie , and then use a piece of wire to connect L1 and L2 together. And then do the rest of the stuff they said - breaker size and other rosie setup.

I could be wrong, but that is how I read it.
Hope it works out for you.

Larry

#15

The Rosie / Re: SA update to Rosie setting...

Last post by bigbillsd - October 26, 2026, 02:04:47 PM

The only reason I am/was looking at it are the new Rosie features.   

#16

The Rosie / Re: Is there a way to get the ...

Last post by bigbillsd - October 26, 2026, 02:00:52 PM

I would check with onan and see if the 2 outputs can be paralleled for 120V, if they can Wizbandint is right 
1- Set Rosie for 120/120
2- Physically connect L1 and L2
Now the 26A charge rate will get you 120A dc charge with 60A breaker size BUT do not try this unless Onan says its ok. A quick sanity check would be to measure between AC Hot one and AC Hot two on the onan and see if you get any voltage? If the 2 neutrals are connected and you measure 0v between the 2 hots than they are in phase but still double check with onan

I believe we already tested that back in June?   The Onan is wired to l1 and l2, you had me change to 120/120 and it still only produced half the amperage.  Am I misunderstanding something, are you saying to connect both those hots to L1, and not to l2? Or?  This is quickly becoming a difficult way to do tech support.  -Bill 

#17

The Rosie / Re: SA update to Rosie setting...

Last post by FNG - October 26, 2026, 02:00:25 PM

I assume you are referring to Rosie not Solar Assistant? in either case no issues as of now but also Rosie code hasn't changed much so if you are not looking for a fix we advertised or a feature, we advertised I would not update.

Basically, my stance is - If the update doesn't fix a bug you have OR add a feature you need don't update

#18

The Rosie / Re: Firmware update versions

Last post by FNG - October 26, 2026, 01:58:22 PM

Released 26.05.01.08

Fixed a specific bug where Rosie would count up internally past 100% SOC and then would need to count that down before dropping from 100 to 99% making it appear stuck at 100%

#19

The Rosie / Re: SA update to Rosie setting...

Last post by bigbillsd - October 26, 2026, 01:56:15 PM

What are the issues with 10-12 beta and can you be more specific on the version with the full number and that device it is

I am asking if there are any issues prior to updating..  I don't know if there are any.  Coming from the network side of the house, we often waited till the next versions came out to look at what that version fixed from the prior version as a guide to determine if we can update our switches and routers.  (any everything else) 

#20

The Rosie / Re: Beta Firmware

Last post by FNG - October 26, 2026, 01:56:03 PM

Released
Rosie RE 26.06.23.00
Rosie RV 26.05.01.00

Mostly house keeping on code but added a fix in the bootloader for random 5 second outages if you experienced them. Usually associated with closed loop battery coms