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I've searched for a definitive answer, but am still not clear on whether or not this particular Delta 2 power station can be connected to another identical Delta 2 using the battery expansion port via the XT150 cable. https://www.amazon.com/gp/product/B0B9XB57XM Can it be done? What about...

I just purchased this new Growatt Infinity 1300 SolGen/Power station. Problem is that Growatt doesn't provide an add-on external battery option. ? So, I'm going to do a DIY add-on battery by connecting an external LFP battery bank to the Growatt's solar PV input. Of course, the Growatt won't...

I'm operating in an area with an average 5.5 peak solar hours per day (panels tilted to the area's latitude facing 180° due south). So, if I assume 95% charging efficiency of the MPPT solar charge controller, then I get the following for numbers of Watts/Panels I need to fully charge a single...

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...

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...

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...

2000W / 12vdc PSW -- $179 on Amazon For $179 this looks like a no brainer for a tiny RV build, where my largest peak continuous load is likely 1200W for not more than a few minutes. Most of the time I'll be under 500W. Does anyone have experience with this brand, or this particular inverter...

2000W / 12vdc PSW -- $179 on Amazon For $179 this looks like a no brainer for a tiny RV build, where my largest peak continuous load is likely 1200W for not more than a few minutes. Most of the time I'll be under 500W. Does anyone have experience with this brand, or this particular...

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?

I'd like input on the best type of ultralight PV panel suitable for backpack travel. Weight is the number one factor, as in watts/ounces. I have a very small backpack that could accommodate a panel size of up to 12" x 16" . Anyone found something that works for them on the road and on the...

Many people use one of the power savings meters, e.g. Kill-a-Watt. I have a few, including a very old Kill-A-Watt P3. However, I looking for something much smaller, lighter and pocket-sized, that would travel well in my backpack. There are so many very small DC power meters available. But does...

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...

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...

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...

What's the consensus on the best quality and best value folding PV panels on Amazon? It seems like there are tons of cheap folding 100 watt solar PV panels designed for portable solar generators (i.e. Jackery, Bluetti), and/or to charge devices directly with built-in USB-A ports for charging...

I'm deciding to whether or not to keep this cheapie 2000W pure sine wave inverter from Amazon.... https://www.amazon.com/gp/product/B096KCWN3K The test setup is this: 400Ah (2x200Ah) LiFePo4 batteries in parallel wired to inverter with 12" cheapie provided cables (est. 10awg) with beefier...

I'd like to run a small'ish 12vdc inverter in the 300 - 500 watt range off of 18vdc nominal tool battery packs in travel and emergency situations, without having to lose energy using a DC-DC step down converter. Without knowing the internals of the DC side of these 'cheapie' inverters or...

I'm ready to pull the trigger on a couple EG4/GYLL 24v batteries. However, I like the idea of wiring these in series if/when I want to go to a beefier 48v all-in-one inverter (e.g. Growatt), but still retain the flexibility and redundancy of two separate batteries that I can also configure in a...

Hey guys. WHo's found a good value on flexible CIGS technology solar panels. The application will be mobile/portable RV/Marine and tiny home use, to support a system 6kWh system. I've seen flex panels even on Amazon, but haven't asked to confirm if they're true CIGS panels or something else.

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 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...

The much anticipated Bluetti AC300 is now officially out. It's probably the best overall design for a SolGen system for serious power delivery by any major player, at least IMHO. Will has posted his review here... And HoboTech has posted his here... So, what can we come up with that...

Hey guys, @Will Prowse, The mobile-solarpower.com site, while having great suggestions for different types of systems, seems old and dates, with older devices and products listed, and even dead links to some of them. Makes me not trust the designs when there may be better, less expensive...

I'm in the market for solid inverter, and some of you here have enlightened me on the value of spending the money for a Victron quality level device. So I found one locally that's a good candidate for my small off grid RV/cabin system. It's advertised as new/open-box, but I don't really trust...

@Will Prowse put out a video on the Growatt MIN 6000TL-x... Is this particular model stackable?

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?

Just came across this today. Looks like a possible Chins-class battery. Would love to see Will tear one apart before investing in a few of these. For $409.99 it's almost too hard to pass up, as I'm not waiting for cells and components from China...

Couldn't quite find the clear answer to this, but would like to know what types of charge controllers, if any, would allow you to charge batteries from one single-phase AC output genset being fed into the controller. I can't say a grid-tie system would work as it's likely expecting 3 phase...

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...