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12V system: Connecting two Victron charge controllers, two battery banks, one inverter

rbertino

New Member
Joined
Aug 16, 2023
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1
Location
Wimberley, TX
I am in need of correct setup / diagram to connect the following:

4 250 watt solar panels yielding approx 200watt / panel

2 100/30 Victron mppt charge controllers

up to 6 AGM 12V deep cell sealed batteries

1 Giandel pure sine wave 3000/6000 inverter

1 IOTA DLS 30 battery charger

1 50A controller automatic transfer switch that automatically transfers between battery and grid power based on high/low volt threshold settings.


How do I incorporate all this with one inverter?
Otherwise, must I set up two completely separate systems? want to avoid to minimize cost if poss.
I assume i need more components...what do you i need?


here's a link to the transfer switch on amazon: https://www.amazon.com/gp/product/B07F12RDZ2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

thank you all for you help here :)

Current setup in image below
20240107-153906.jpg
 
Is it possible to make one large battery and one charge controller?
Do not discharge batteries deeply.
 
For most controllers, both PWM and MPPT, parallel connection can lead to malfunctions of the microcontroller, and in the event of such failures, the charge controllers may trigger protection, or even lead to a short circuit.
 
need of correct setup
Use the correct type of cable to connect the MPTT to the battery.
Wire the batteries correctly in parallel.
Add fuses or breakers for over current protection on the DC circuits.

The AC output form the inverter should follow best practice to prevent fire and electrocution


Screenshot_20240104-231107_Drive.jpg

Screenshot_20240118-154416_Chrome~2.jpg
 
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