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I've been looking on Ebay and noticed pretty good prices on the Bluetti AC300 with B300 battery(s). They are refurbished, and I'm not entirely sure what kind of life they have had up to this point. Anyone here had good luck w/Refurbed products?

So a friend at work just got a quote for a system of an unknown size and he signed paperwork for a nearly $50,000 dollar system at a 1.95% interest rate over 25 years. I believe he said he gets back 26% when he files his taxes. He doesn't believe this includes any kind of battery back-up, I'm...

I learned Bluetti did/or will release a cable so you can use the B300 batteries on the new AC500, I'm curious if anyone has heard if they'll make one to use the B300S batteries w/the AC300.

I plan on running my 4 MC4 wires from my two arrays down the roof through PVC conduit around the eave and into the attic. What is the best way to do this so no bugs/water get into the conduit ... some kind of box or just run the conduit under the panels and seal the end of the pipe with some...

I have 2 arrays on my roof, each array consists of 3 270W Trina solar panels with a Voc of 37.9V (so 113.7V) Each MPPT controller on the Bluetti has a max voltage of 150V. I only initially put 3 panels in each array because 4 would bring the Voc to 151.6V and that's not taking cold weather...

Both panels below I found used for a good price/KWH. Will either of these work with the Bluetti AC300? I apologize for my ignorance, this is my first post and am looking to educate myself. Thank you in advance if you're able to help!

Is it viable to run roof array wires into the attic through the ridge cap vent end cap?

Sorry for what is probably a very noob question, but would this wire work for me? I'm looking at running 2 arrays (120v/8ish Amps each) from my rooftop through the attic into my house to a Bluetti AC300. From what I understand I want it to be tinned and UV resistant, 10GA, if I'm missing...

I'm planning on running 2 Bluetti AC300's together in split phase to a transfer switch. The transfer switch will power lights/outlets throughout the my house all of which will be 110v other than my AC. My question is, if I'm not running my AC and only pulling small amounts of wattage (0-2500W)...

Pictured is a a panel I'm looking at buying 8 of. I'd like to run 2 arrays with them. Each array would consist of 4 in series. I want to run them into my Bluetti AC300 which has a max voltage of 150V and 12A per MPPT controller. If I multiply the Voc by 4 it comes up 1.2v over the max load...

Does anyone know if you can put an AC300 together split phase with an AC500? I'm guessing no

I have 2 small arrays on my roof (each array is 3 panels in series) and I'm running both of them into my AC300 inside the house. What would you recommend for running the wires from the roof to the inside? At the moment I'm contemplating drilling through the roof and dropping them through the...