wedge1020
New Member
Hello!
I have a Renogy ROVER 40A MPPT controller (RNG-CTRL-RVR40-BT) currently running a 12V solar system at my off-grid cabin (400W of panels, 300Ah of battery).
With my current lead acid batteries pushing 5-6 years old, and notably performing less and less well with my usual loads, I am considering new batteries and upgrading to a 24v system.
The manual for the MPPT would seem to indicate that the load terminal provides 20A at what I assume to be system voltage (currently 12v). It also warns against connecting an inverter to the load terminal (instead to wire it inline to the battery, which is what I currently have).
I have a 1300W EcoFlow Delta with integrated inverter, and when charging from AC pulls up to 600W, but from solar up to 400W (amperage limit of 10A). Currently, I charge it through a 240W AC adapter plugged into my inverter, although I have from time to time plugged it directly into the solar panels (although in that case I lose out on so much of the power generated due to the 10A limit imposed by the Delta circuitry-- 12v 4 x 100W panels... on the ideal day the charge controller reads 33A). Either way, I charge the delta through its XT60 solar port (the 240W 24V/10A AC adapter, or the 120W 12V/10A best case direct from panels).
Question: is it unreasonable to consider powering the Delta through the load terminal on the MPPT controller? If the Delta limits itself at 10A, and the terminal provides 20A, I wouldn't be pushing any currently apparent limits (and would remove what seems to be an unnecessary DC -> AC -> DC conversion in the process).
This would free up my most pressing need for my current 12v 1200W inverter (really only used to plug in the AC adapter to charge the Delta).
Question #2: Should that not be an unreasonable course of action, I also have a DC fridge (Setpower RV45S) that runs in 12/24v, which from quick calculations wouldn't be pulling more than 5A in 24v operation. With the load terminal providing 20A, 10+5=15A, and 15A being less than 20A. If I split the connection to run to each of these devices, provided the sum total consumption of all involved devices doesn't exceed the available 240W, would that be in any way a bad idea?
General operation of my system is pretty much to keep my devices charged, and keep my foodstuffs cooled. My general need for AC is limited to wall warts converting to DC for various devices, and as-needed a 600W vacuum via AC (which is more than within the Delta's operating capacity). I'm aiming for minimal and operational.
Wondering if I can do without the standalone inverter and basically use my Delta more centrally for the occasional AC needs and USB power, while more fully making use of my Renogy MPPT charge controller to manage the larger battery bank.
I have a Renogy ROVER 40A MPPT controller (RNG-CTRL-RVR40-BT) currently running a 12V solar system at my off-grid cabin (400W of panels, 300Ah of battery).
With my current lead acid batteries pushing 5-6 years old, and notably performing less and less well with my usual loads, I am considering new batteries and upgrading to a 24v system.
The manual for the MPPT would seem to indicate that the load terminal provides 20A at what I assume to be system voltage (currently 12v). It also warns against connecting an inverter to the load terminal (instead to wire it inline to the battery, which is what I currently have).
I have a 1300W EcoFlow Delta with integrated inverter, and when charging from AC pulls up to 600W, but from solar up to 400W (amperage limit of 10A). Currently, I charge it through a 240W AC adapter plugged into my inverter, although I have from time to time plugged it directly into the solar panels (although in that case I lose out on so much of the power generated due to the 10A limit imposed by the Delta circuitry-- 12v 4 x 100W panels... on the ideal day the charge controller reads 33A). Either way, I charge the delta through its XT60 solar port (the 240W 24V/10A AC adapter, or the 120W 12V/10A best case direct from panels).
Question: is it unreasonable to consider powering the Delta through the load terminal on the MPPT controller? If the Delta limits itself at 10A, and the terminal provides 20A, I wouldn't be pushing any currently apparent limits (and would remove what seems to be an unnecessary DC -> AC -> DC conversion in the process).
This would free up my most pressing need for my current 12v 1200W inverter (really only used to plug in the AC adapter to charge the Delta).
Question #2: Should that not be an unreasonable course of action, I also have a DC fridge (Setpower RV45S) that runs in 12/24v, which from quick calculations wouldn't be pulling more than 5A in 24v operation. With the load terminal providing 20A, 10+5=15A, and 15A being less than 20A. If I split the connection to run to each of these devices, provided the sum total consumption of all involved devices doesn't exceed the available 240W, would that be in any way a bad idea?
General operation of my system is pretty much to keep my devices charged, and keep my foodstuffs cooled. My general need for AC is limited to wall warts converting to DC for various devices, and as-needed a 600W vacuum via AC (which is more than within the Delta's operating capacity). I'm aiming for minimal and operational.
Wondering if I can do without the standalone inverter and basically use my Delta more centrally for the occasional AC needs and USB power, while more fully making use of my Renogy MPPT charge controller to manage the larger battery bank.
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