Posting my first pictures of a couple of Stacked Rosies. (no solar yet, just whole house battery) I nervously turn off the AC Input to run the puppies on Battery. I saw a slight dip in lights, but everything kept running WooHoo!. But, I still cannot figure out how to get the second Rosie to wake up and feed either DC or AC. (working with Midnite support).
2 48V 304Ah batteries using JKBMS JK-PB2A16S20P for a total of 29kWh of usable power.
Lots and lots of configuration for both the batteries and the Rosies. (still tuning) Thanks to everyone who provided 48V / 16s JKBMS notes.
I ordered my Rosies early Jan, and the ePanels are still not available, so I DIY my own. For each Rosie, I have the 300A breaker from BlueSea, 1 60A for AC Input, and 1 60A Output breaker / Transfer switch the critical load panel also has 60A dual pole breakers for input for each Rosie. Working with 6awg wires in a confined space is a nightmare.
My ChargeVerter can run on either AC or Generator as it's plugged into the main breaker box with a generator interlock. (good for testing without the generator) Rosie showed lower draw on the batteries when I turned on the ChargeVerter and the Batteries also started showing charging, with no hiccups on either.
Battery configuration on the Rosie is:
Absorb 55.2V
Absorb Time: 2:50
Float 54.8V
Float Time 24:00
EQ (not used for Lifepo4)
When I first turned off AC on the Rosies breaker, I turned on a 5 ton AC, a 24000BTU MiniSplit, an air fryer at 400f, a heat gun on full heat, all the lights on the first floor, all the ceiling fans and all the bathroom fans and 3 computers. Initially the Rosie was showing an 8300W draw (greater than it's advertised 7kW continuous) and the fans didn't kick on until about 5 minutes in. Unfortunately the 2nd Rosie never woke up. (also didn't wake up with I turned on bulk charging) But was really nice to see that both batteries were drawing, and the Rosie was showing a 160A draw on 1 4/0 cable. (Rosie can handle 300A and the BMS can handle 200A, so neither was breaking a sweat yet.)
2 48V 304Ah batteries using JKBMS JK-PB2A16S20P for a total of 29kWh of usable power.
Lots and lots of configuration for both the batteries and the Rosies. (still tuning) Thanks to everyone who provided 48V / 16s JKBMS notes.
I ordered my Rosies early Jan, and the ePanels are still not available, so I DIY my own. For each Rosie, I have the 300A breaker from BlueSea, 1 60A for AC Input, and 1 60A Output breaker / Transfer switch the critical load panel also has 60A dual pole breakers for input for each Rosie. Working with 6awg wires in a confined space is a nightmare.
My ChargeVerter can run on either AC or Generator as it's plugged into the main breaker box with a generator interlock. (good for testing without the generator) Rosie showed lower draw on the batteries when I turned on the ChargeVerter and the Batteries also started showing charging, with no hiccups on either.
Battery configuration on the Rosie is:
Absorb 55.2V
Absorb Time: 2:50
Float 54.8V
Float Time 24:00
EQ (not used for Lifepo4)
When I first turned off AC on the Rosies breaker, I turned on a 5 ton AC, a 24000BTU MiniSplit, an air fryer at 400f, a heat gun on full heat, all the lights on the first floor, all the ceiling fans and all the bathroom fans and 3 computers. Initially the Rosie was showing an 8300W draw (greater than it's advertised 7kW continuous) and the fans didn't kick on until about 5 minutes in. Unfortunately the 2nd Rosie never woke up. (also didn't wake up with I turned on bulk charging) But was really nice to see that both batteries were drawing, and the Rosie was showing a 160A draw on 1 4/0 cable. (Rosie can handle 300A and the BMS can handle 200A, so neither was breaking a sweat yet.)
