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My $2000 Emergency ...
 
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My $2000 Emergency Backup Solar Generator

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(@robertm)
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Joined: 3 years ago
Posts: 205
Topic starter  

800W of panels on the roof of a shed

20A Renogy  Rover MPPT charge controller

One bank 24V LiFePo 100AH

One bank 24V lead acid 75AH

A switch between each battery bank and the inverter (red handles)

PowerJack 8000 AMG currently wired to a 115V duplex outlet in the house

//content.invisioncic.com/g308908/monthly_2022_08/IMG_20220809_131736_kindlephoto-11594926.jpg.9d2b73eae899b305ad1c7920327186f8.jpg


   
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(@aquaticslive)
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Joined: 4 years ago
Posts: 249
 

Nice setup man.


   
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(@robertm)
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23 hours ago, AquaticsLive said:

Nice setup man.

Thanks. It's very small, by most standards, but will give me basic power in an emergency. Today, I programmed a user setting for the LiFePO4 bank. People were telling me that the Renogy controller lithium preset was too aggressive. I also added two more breakers to that rail on the wall (one between each battery bank and the charge controller).


   
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(@aquaticslive)
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Posted by: @robertm
Thanks. It's very small, by most standards

That is the fun part slowly building things up but having something useful right away.  Keeping the prices down keeps it something manageable and fun.  I am adding some of those breakers that Sean mentioned in a video too.

 

Posted by: @robertm
Renogy controller lithium preset was too aggressive

Does the Renogy have user programmable settings to adjust the max voltage down? 


   
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(@robertm)
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2 hours ago, AquaticsLive said:

That is the fun part slowly building things up but having something useful right away.  Keeping the prices down keeps it something manageable and fun.  I am adding some of those breakers that Sean mentioned in a video too.

 

Does the Renogy have user programmable settings to adjust the max voltage down? 

The Rover controller can be programmed using the older Renogy BT app with these parameters:

High V Disconnect
Charge Limit V
Equalize Charge V
Boost
Float
Boost Charge Return
Over Charge Disconnect Return
Low V Alarm
Over-Discharge V
Discharge Limit V
Over-Discharge Disconnect Delay
Equalize Charge Time
Equalize Charge Interval
Temperature Compensation


   
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(@aquaticslive)
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2 minutes ago, RobertM said:

The Rover controller can be programmed using the older Renogy DC app with these parameters:

Nice that is handy, I don't have any experience with that one.  Good to know Renogy is pretty popular, I try to help out RV folks in my area so if I run into someone that has Renogy good to know that there is a PC app to edit things. Epever has a similar app if you run into one of those. 


   
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(@robertm)
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Posted by: @aquaticslive
Nice that is handy, I don't have any experience with that one. Good to know Renogy is pretty popular, I try to help out RV folks in my area so if I run into someone that has Renogy good to know that there is a PC app to edit things. Epever has a similar app if you run into one of those.

It's little tricky, because a Renogy app that's newer, called "DC home" doesn't have much functionality. The app you need is older, called "Renogy BT" plus the specific "Rover" line of Renogy controllers. 


   
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