Recent content by nifty-stuff.com

Update: I asked Bluetti support the following: Question: "Can the EP900 keep my Enphase solar system running off-grid? Do you have any systems that do this (or will you)? This is one feature that Powerwall, FranklinWH, etc., advertise as a big positive with their systems." Answer: "Yes, the...

I just watched a handful of the videos on the EP900 and EP800. From what I understand: I can have my 9kw enphase array feeding AC into this unit AND also have 9kw of DC from two more arrays feeding into this unit together at the same time? When the grid is up, both of the solar inputs (one from...

I also have 200 amp panel. With a system like the Delta Pro Ultra + Smart Panel 2, I was assuming I would / could have my existing main pane with all my misc. circuits, and then have the 12 circuits in the SP2 for "critical loads". This unit is definitely not "whole house backup", but I'm...

Wow, it seems every youtuber and their mother is getting / reviewing these units!! It does look pretty interesting. Seems like it's relatively easy to setup, and using the Smart Panel 2 for critical loads and for managing TOU arbitrage is cool. Bummer it doesn't allow for the grid-tied solar...

This is SUPER helpful, thanks! It sure would be GREAT if this was clearly spelled-out / written somewhere official that customers could review and reference! So, it's pretty clear that going from NEM 1 to NEM 2 (especially extending for another 20 years) is ideal when compared to NEM 3?

Thanks. I didn't think I needed a "smart" / fancy charger, but I guess that's the best/safest way to go?

Unsurprisingly, this cheap one from China has zero specs and I'm guessing no OL/OC protection :( I guess to cover my bases I should upgrade to a MeanWell with built-in fan?

That's helpful, thanks! Sorry, I wasn't very clear. I should have said "discharged to 70%". I believe it's just a 10 Amp dummy power supply set at 13.6v output. There is no way to control the current as far as I know. I thought it would just deliver 10A continuously and safely (even without a...

Update: I drained the battery by about 30% and then plugged in the power supply. I should have been, but wasn't measuring the DC from the PS, but going into the PS was 225 watts via the AC killawatt. ... and the power supply was getting TOASTY hot. Not "melting plastic" hot, but also too hot to...

OH! weird... thanks for pointing that out. is it showing now?

I appreciate all the help and feedback! I ended up just going with the Renogy 100Ah AGM. Here's my setup so far (it's a mess, but still just testing everything before I fully commit). I've got the power-supply unplugged to just test the 12v outlet. I've got a 12v plug (a 3D printed a...

Seems like the info on this is mixed. It sure would be nice if balancing wasn't an issue / concern with LFP.

That's basically what I understand would be required to keep the internal LFP cells in "balance"... basically going to FULL every few months. (something I'm not able/willing to do with Grandpa's system). I'm honestly surprised that all these units don't have a fancy BMS that automatically...

The Renogy AGM battery came today and it was sitting at a nice 12.7 volts. I set the power supply at 13.4v and connected it with a volt and ammeter and (as expected) saw the voltage drop down a little and the current started "high" at about 5 amps, and quickly dropped down lower and lower and...

Nope, a cheap one, so I don't have super high expectations of it and might go with a meanwell once I've tested everything. Thanks @justgary for your post! Yes, I think VERY VERY rarely Ah, good point that the CPAP isn't quiet. I think I'm just thinking about the morning / during the day when...