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I seriously don't understand. We have a small forklift and need to charge an AGM 36V pack. Having massive current is not even that important, but I want it voltage regulated or even just adjustable. I can find them no where! However, as soon as we step into the solar arena, now every charge...

I am running a new load monitor that has internal resistance displayed. However, I am not certain how to interpret the data as it changes with load, and reads all zeros with the parasitic 20W load against a 600ah/12V pack.

For Tim, who asked for a link. About 4min in. Basically this thing works to create perfect output, BUT probably at an efficiency loss, which I don't care about. Lots of people get spun about perfect power but don't realize most electronics take it right back to DC anyway! Basically all I...

There is a test video on YT that proves the MPP LV-MK does it as well. Just not certain how each does it, and that is something I always get crickets on. OEMs don't talk about designs. I am just supposed to throw big dollars at a mystery box. Schneider is the worst!

I am confused as you say Victron is the only one with "grid assist", or maybe just the terminology? Or maybe the architecture is different? Maybe it truly does sync the sine waves as AC? Which would certainly be more efficient! I really tend to wonder if the Voltronics goods are just...

That is quite interesting! From what I gathered, a lot of this comes down to software. I've read several places where the PowMr looks the same but does not work well at all and I have one of their brand new 60A MPPT chargers that is basically a paper weight! The electrics inside might be OK...

This won't be grid connected. In most inverters, they use a transfer switch so when AC is present, they activate a transfer switch, which completely removes solar and battery from powering the load at all. I'm sure the internal solar charger will still charge batteries, but my goal is to allow...

Well, there really has not been good, standardized terminology. Someone starts it, and others sort of follow. Like "SUB", I understand that is a priority setting, but means nothing in terms of ability. Only thing I can guess is a "double conversion" unit. I guess the nice part of that...

I very much realize Victron has their "power assist", but I have yet to find a common 'term' for the ability of an inverter to sync and use both generator and solar power, or grid for that matter. Maybe a "hybrid" does this? Being in the engineering field, I understand a lot of what they are...

Yeah, it is a certainty that digital soft starts will be used. No way around that. Actually, I may also supplement the bedroom area with a mini split heat pump so the big power hogs don't always have to be running and I can grab some heat as well. Actually just not having to listen to those...

Not sure if your compressor fridge is 12V. Many are, which basically run a lower power compressor system. I've tested other fridges at around 300W when running but have not tested this one just yet. I think a lot of people have fought with absorption fridges but mine has done well for me...

I think one direction I am looking at is keeping the small 12V battery bank and the OEM 12V battery charger that runs off the AC, then use the 48V bank only for AC power and keep that as a discrete system. This would hold the 12V voltage up where it should be and if I lose AC I still have 12V...

Probably targeting 3000W right now. What I am most interested in beyond the voltage is an inverter that is capable of running solar combined with the generator. Usually it is one or the other, which is just not acceptable for my application. Basically I want to run at least one of the air...

We use a 5th wheel as an office at a plant nursery but also like to use for a couple trips. I say this because we run it off of solar primarily, but not really enough power. There is no grid power. Right now a 5th is setup with only a 1000W 12V inverter and separate charge controller with a...

We will probably have to make do for the moment but I am curious about the latching DC solenoids? Been around irrigation for decades but can't say I've seen this. Our current AC solenoids are 200mA, 4.8W after inrush.

I did spot that one, but literally about the only decent one I could find. I wasn't sure if this was a highly special market area?

To clarify my needs, we have an irrigation controller that needs 24VAC. All the internal electrics in it are DC, they normally run on a 24VAC walwart and that power is what is switched and sent into the field to run solenoids and they are not rated for DC operation. I would like to have this...

We have a hot fence going and I have determined that the average consumption is about 1.5Wh per hour. This is to keep deer out so we don't even use during the day. Currently running on a big 200ah/12V AGM. All I am looking to do is keep the batt topped up a bit. I am looking for a cheap but...

This is where the specs and graphs do not present well because I don't see anything that can deliver over 8GPM, but we also know that should be highly dependent on lift. But this might all be in vane because I don't think we are in the camp to spend $2500+ per pump to have an extremely...

Though those pumps look innovative, and I certainly appreciate the recommendation, but do have several concerns there. Mostly that it appears they are dunking an inverter controller in the hole, and making this a highly proprietary and expensive piece. As well, I don't see any pumps that can...

We can't really rely solely on solar. Many shady days will require assistance. As for pump requirements pumping ft of head will be around 60 while running, and about an additional 15-20psi on the delivery side. I am very perfectly content to switch directions with equipment as long as we...

In trying to keep this simple I will just say we are doing some commercial plant growing, and need to pump water from relatively shallow cased water wells. Watering needs are daily and I realize generators will be needed as a supplement but looking to drive the majority with solar. Getting grid...

I am curious if the above monitor can track negative power flow? On one of my systems, I am configured to push power back through the shunt for battery charging, but the meter will just real 0. This is on an FLA system, but it becomes pretty important to track charge data with Li. I realize a...

I agree, that appears to be a much better quality piece! However, I don't yet know the specs on that shunt, but would YOU be comfortable pushing 600A through that? One that I have now I think is a 100A piece but has these little anemic screws, no lugs.

So I have used some top of the line goods but they are big bucks. I am debating here. I currently have a small system running on one of these small China power meters/shunts. Meter is accurate! However, the way the shunt is made, anemic screws and such, I am reluctant to push that thing...

Still working on this but the OEM does not give absorption values really because these are intended to be UPS batts. However, they do provide the discharge rates, etc. They do indicate popping them at 14.4 for up to 24hrs, but I have a regulated charger that is fixed at 14.7. At this point, I...

So I have several high end, commercial 12V AGMs that are out of warranty, never cycled, and were sitting at around 12.5V. I ganged several together in parallel to ensure uniform charging. The issue is the charge voltage will try to swing high while the current is very minimal. Put it this...

I have a battery bank that is ready for replacement. Looking to see what new LiFe batteries are priced good right now? I am not going with over priced Battleborns. Looking for either Prismatic bare cells or 5-10kwh modules. I have some systems picked out in China but I just cant get them to...

before I step through the process of building some, I thought I should see if there are any sources out there?

I am looking to convert an RV to a 48V pack. I will still need to step back down to 12V for DC loads in RV. My options are a DC/DC converter or battery with 12V charger. I am weighing those option. Anyone have experience with either? I have been looking at options but one that might force...

My target charge parameters move with the temperature but usually I try to run to 14.2 bulk, and 13.8 float, but many days it just won't quite get there because the solar is well matched to the system so if there are clouds, it might tap 14V for a couple hours and never actually float. I...

It really is a mystery because I disconnected that pair of batteries for a few days. Voltage was spot on and a quick load test showed normal. No doubt this is not normal behavior, but I have never seen it! Usually something like this is a shorted cell which causes the others to get over...

I thought that was apparent above. Just "sitting". Like ignored and other stuff to do. Not a good strategy but I stay very busy.

As for mine, I have decided to hold off charging even though the temps were showing about 35F today on the batteries and will probably be 40F in a couple days. I am going to expedite another other project which will enable me to get them out of storage. They have not been charged in over a...

I simply mean that you are putting all the faith in the fact that the meter you used is correct. I am not saying it is wrong but if you use 3 different ones, you will probably get 3 different readings. Has to track voltage and current perfectly.