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Well, since I don't think you got a direct answer, here I go, as I just developed the following rule of thumb ballpark estimate for my location. I based my calculations on how much energy is needed to recharge a standard 100Ah 12.8vdc (1280Wh) battery, readily sold today. I consider that a...

Clever way to test for correct (close to correct) PF correction capacitor value. And the OP's rule of thumb (He's from the UK, if you can't tell from the spellings): Simpler formulae; if you want to do PFC but know only that your load is heavily inductive (i.e. PF = 0.6 or lower), then the...

Has anyone attempted and succeeded at paralleling two identical model Pure Sine Wave inverters to double the power output? This is a common feature of some of the larger the All-in-One inverters, and even a couple of smaller power stations (i.e. Vigorpool Captain 1200), but I'd like to be able...

Great. @Amy Zheng. What's the current shipping ETA to Orlando FL 32803?

Cool. So orders from this company will ship from that location in Houston?

I'm considering using this shallow well pump down here in Florida.... https://www.harborfreight.com/1-hp-stainless-steel-shallow-well-pump-and-tank-with-pressure-control-switch-950-gph-63407.html The user manual has very little electrical info, other than to say it's rated at 10amps @ 120vac...

So, you're referring to this Growattt 48V model: SPF 3000TL LVM 48P https://www.ginverter.com/Off-Grid-Storage-Inverters/44-589.html I think for flexibility of use in various applications (RV/Boat/Tiny Home/Emergency backup) I'd go with the 24V version, the SPF 3000TL LVM 24P, just so I can...

I'm in the market for a small/medium sized portable power station solution for off RV'in and offroading. The Vigorpool Captain 1200 checks off a lot of boxes for me -- especially being able to parallel two together for 2400W of power and 2560Wh of energy (paired), for higher loads and more...

Well, doing a bit of dead link searching on Goolge, I've narrowed it down to a 3000W 12V PSW inverter. Perhaps a Renogy?

Can Will post up sneak previews here (or maybe on Patreon) of his battery reviews/tear-downs so we can get a leg-up on purchasing them (Amazon) before the crowd cleans out inventory, like what recently happened with the Zooms battery?

Whoa. I like this solution. But the Victron Mutiplus "adds" it's power capacity onto the incoming shore power capacity in Volt-Amps? I would naturally just assume that the the Victron would boost a weaker grid power source to the maximum of the Victorn's own inverter power rating. I didn't...

I just ran across this guy's YouTube channel who's come up with an intriguing hybrid Lithium/Lead Acid battery system for his sailboat. He's got some great points that makes sense for marine applications. But it got me thinkinkg about RV and tiny off grid house applications. He touts the...

THIS. Any resolution to this situation? I'm ready to pull the trigger on buying these batts, but not if the support if failing. This is why I generally don't care about warranties. They're no better than the company standing behind them.

Of course not. But I do, as well as my other loads.

Why not a hybrid approach? Purchase the cheap, pre-made, Amazon-available Off the Shelf (OTS) batteries and take them apart ala @Will Prowse style? You can then mess with the innards of the cells, BMS, connections, temperature sensors, etc to you liking. Augment the pre-made components with...

Hey guys. What's the latest/greatest recommendations for small Pure Sine Wave (PSW) inverters, both 12/24vdc, 1000w and 2000w that are readily available on Amazon? I've been playing with this Bestek 1000w PSW inverter for a while now. It does a great job for most of the loads I throw at it...

Great. Looking at FilterGuy's posts now. WOuld you care to post up your system design? I'm looking at the Growatt as the hub of my off-grid system. Thanks.

Of course. But it will take some time, money, and expertise to know how to do it. @Smokin seems to have a simple enough solution. That oscilloscope that @Professor Farnsworth wants to see could be helpful in optimizing the power factor. At least, it would be good to see how much of the power...

Great. I emailed them and didn't get a response to that question. So thanks for the info.

Works fine in winter months (15% lower irradiance) at my latitude. My main power usage is AC, which I don't need in the cooler months anyway. You have to go on the assumptions provided. MPPTs claim even higher efficiencies than 95% I'm using. I'm not designing a specific system per se, not...

The beaches and coastlines of the world, just to keep things simple.

Inspired by the latest EG4 AIO units with up to 500vdc PV input, I'd like find the best options (excluding Victron) that accept higher PV input voltages. Any recommendations? In the past, I'd search for high *current* MPPT SCC's, thinking I'd get most charging power. However, I failed to really...

There we go. This is getting close. Looks like I'd have to wire in a plug to the green voltage input terminals, with the hot side passing through the current transformer coil, if I'm understanding the wiring diagram. Too bad the case is so big to accommodate the capacitors on the board. It's...

Exactly. You don't know what a device draws until you put a trusted meter on it and measure it's power draw. That's why I was hoping someone here has some experience with this very exact model pump, and not so much generalizations and speculations as to what it power it may draw at startup. The...

Awesome. Thanks. After looking at these setups, I think I better stay in the 12V world just due to ease of sourcing and likely lower costs of ubiquitous 12V components vs 24V. So then, the max inverter size is more in the range of 2000 Watts, per the diagrams above, as you didn't recommend...

I just got a little BISTEK 1200W purse sine wave inverter. It works well enough, but I happen to get the meter out and check the numbers, and noticed there was ~60V between ground and hot. I get the same number between ground and neutral. Why? Is this a hazard, considering plugged in device...

https://www.amazon.com/dp/B0BF94WPW3 What's the general opinion here on using this car jump starter in parallel with a 12vdc bank of LiFePo batteries, (100A or 200A BMS current rating), for inverter loads that may temporarily exceed the BMS max current, say starting AC's, pump motors, etc?

Just noticed strange behavior on my old Kill-a-Watt P3 plugged into BESTEK 1200W PWS inverter... With no load plugged in to Kill-a-Watt * Hz reporting as 13.5 (not 60)! * Volts read higher than inverter's display... about 123 volts vs 115 on the inverter. * slight flickering of the Kill-a-Watt...

I'm only asking for suggestions for wiring in my Growatt SPF 3000TL LVM via an 30' extension cord/pigail into the house electrical panel only for critial loads during extended power outages (think hurricanes). Here's the house electrical panel, with mains coming into the two 125A breakers...

Thanks! Great feedback. Yeah. I'm torn about spending the $$$ (even at Cyber Monday discounts) to have the convenience of compact grab-and-go power solution I can just throw in the camper/RV/truck, rather than DIY one. I own the Growatt Infinity 1300, which has better solar input (1200W @...