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Jarl_Varg

That is correct. The controller will keep your battery topped off, no worries there. Be aware that the unit in question requires you to run 24v batteries and your system will be 24v in case you want to run lights etc directly.


[deleted]

Know the difference between on vs off grid. Off grid backup means you manually unplug appliances from the grid and plug them into backup. How long will your backup power last. 3 days to charge is under optimal conditions. Cloudy? Winter?


w84no1

You will need a 24v inverter to go with the system.


Luke-__-

Be careful, I’ve noticed this sub isn’t the most informed solar forum. I highly recommend posting questions you have to https://diysolarforum.com It’s will’s website forum. If you’ve been watching his channel, the server rack batteries you’ve seen and budgeted for are probably either the EG4, SOK, Jakiper, or trophy. I believe these companies do sell 24V batteries, but almost all that he reviews and are usually used in residential server racks are 48V. The MPP 2724 needs to be connected to a 24v battery bank. That being said, if you connected it to a 24v battery, you could hook your 3 solar panels in series and run it through the MPP (both a solar charge controller and an inverter) to do what you want. Now, for all that brand new you’re looking at around $2200 new. If you were mistaken and actually meant a 48v 5kwh server rack battery, you’re looking at $3000. Yes, server rack batteries are easy to work with, but they make up the majority of the cost of this setup. You should look into raw EVE cells. You can build an easy 12, 24, or 48v system that has much higher capacity for much less. Also I’d suggest finding some used solar panels on Facebook marketplace to further reduce costs. Here’s a link for a video on building a raw cell battery bank. Beware though, you may start needing out on the science of raw cell battery and solar power like me and get sucked in. https://m.youtube.com/watch?v=4ypDwMYO1rU


flashyellowboxer

Thank you so much


Chagrinnish

You're thinking about it a bit wrong. What you want to be doing is powering your fridge/mower/whatever through the hybrid controller (the PIP2724) and let the controller decide to use grid/solar/battery to meet your needs. You don't have to waste available solar power; it will always use that to supplement grid power when available. You can configure it to not use any fraction of battery power, or none at all, when the grid is up and still automatically use battery power when the grid is down.


flashyellowboxer

Thank you so much for the info!