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Theres plenty of them 10 usb tll thingys but they backfeed voltage in some cases so what I need is something that isolates the usb thingy the same way victron's ve direct usb does but without the ridicolous 50 usd price :X

Had this shunt to measure incoming power and voltage on my PV line for a year. Works great. Recently i reconfigured my solar array so it now have almost 400v oc and 340v during mpp. The shunt is rated for only 300v but i just found out it can only display 300v max everything else works fine up...

I always though that chat gpt and similar ai's where dumb AF when it came to basic human communication that even a toddler would be more apt at. But to ask some basic electrical question and be given 3 different answerer/self corrections is just.. wow. Im not doing anything with my system im not...

I dont know if i maybe have some super good low light performing panels but partial shading does not bring down the entire array in a way that seem to be the general consensus . In worst case scenario covering one panel with a blanket and it would at least be able to pass on the current from the...

Mailed solar assistant asking but they wont reply, I have a strong feeling if I would buy the software and find out it wont work I wont get a refund.

Cant find anyone higher than peacefairs 300v model. Any tips?

As above

Epever used to state they can be over paneled by 150%, lowered later on to 125%. What is happening is when they fail because over paneling is during cloudy weather and the ssc is accepting max current and suddenly sun pops out from clouds mosfets burn up because the ssc is unable to react fast...

In my app the "read" voltage values are correct but divided by 4. So a setting of 54v float voltage in the unit is displayed as 13.5v float voltage in the application. Am also unable to change the value in the app even when battery type is set to user and lf16. Anyone know if im doing...

top right corner after dc and ac temperature

In dc connectors with large inrush current you can add a resistor that make connection before the conductor to prevent the spark. There does not seem to be a similar thing for dc breaker and for a good reason I assume. But what is that reason? A dc breaker that breaks dc line first while still...

I got settings set at 56.4v boost for 10 minutes 54v float and 43.6v on setting #37 Battery fullycharged recoverypoint. What my inverter does is it charges up to 56.4 then instantly stops charging battery and all load is via pv only. A small discharge of 35w is drawn of batteries. After 10...

As in, when SRNE/ powmr aio is in bypass mode is it identical to be connected directly to mains (except the loss in the additional conductors) No ac-ac conversion happening?

From their official website they got these crazy good deals now. I bought an unit for almost half price 699 down to 399 usd. Returned broken units that have been refurbished? Mine appeared brand new, smelled new and had that plastic protector still on the lcd display. The settings was not...

A bit wonky question but when I set my powmr (srne) aio to charge my battery at maximum 5 amps, it does just that while still drawing needed power to run its 230v inverters loads from solar. My aios max battery charge current is rated for 80 amps and max pv power in 6000watt/22amp.. does that...

Just got an pow-hpm5.6kw unit delivered. 500v pv 230v ac european 48v battery There is alot of undocumented info about these units and I will fill it down and try format/edit it better as I learn. Inverter Power Saving mode Idle battery draw: 50W Power saving mode enabled: 32W It goes into...

Ordered an powmr aio unit but it appears they really want to lock you down to use some smartess app via an wifidongle? I dont want to buy that wifidongle. I do have a rj45 to usb from my epever, can that be used with some pc monitoring software?

https://powmr.com/ that one? They got this 5.6kw AiO for 400 usd free shipping.. what could go wrong?

In case of a short from solarpanels to my bms where my ssc fail my 48v lifepo4 battery would be charged directly from solarpanels via my bms and when any cell trigger OVP the bms would be hit by 140volt from my solar panels. Can the power mosfets in jk bms break 50 amps rising from 56v to 140 volt?

where ground is 5 meters away and you stand inside an average house with average conditions Dont say depends plz, just tell me a rough estimate, 10 volt? 100 volt 1000 volt or 10 000 volt?

I tried several daly's and a JK and they are all highly unreliable for measuring SOC. Anyone know of any proper BMS?

From my understanding the reason why the current measurement on JK BMS and other brands are very erratic and fluctuates rapidly up and down is because of current being pushed back rapidly from connected inverters. Would putting several large capacitors as close as possible to the battery...

I want to have my offgrid living "up to code" when it comes to having a functional RCD that would break power if current flows via line any person and then ground. Wires coming in from top is line and neutral from an 230v inverter. Wires exiting from bottom is to household outlets. The common...

I got epevers biggest offgrid ssc an it can take 200v solar input and 100 amp 48v system output. Its still early spring but days getting longer and sun getting higher each day on the sky. Bough additional solarpanels late autumn 2021 so i haven't really got to try them out properly yet...

Hi. I want to apology in advance for convoluted text ahead, TLDR further below, but I don't know how to explain it more neatly and it is regarding something a certified electrician should do not an average Joe. I'm aware of the fire hazards and personal hazard of high voltage Can I bond neutral...

Do you guys have any charts/numbers real world test of the efficiencies of isolated dc to dc, ac to dc and dc to ac converters with efficiencies above 95%? During winter with close to no sun I recharge my battery bank at night when electricity sometimes can be 5x cheaper and use it during day...

Heltec is rebranded JK right? I would prefer to buy from the manufacturer if possible. I assume they have better after sale support should anything happen :/

Sorry about the convoluted thread title I dont know how to simplify it. Anyway Im including a picture for clarification. I remeber reading somewhere that it is important to let the positive or negative return cable after a series connecting "doubling" back running paralell to the series...

50% more? Do the larger factories like eve lishen rept catl even sell cells in low quantities? I have skimmed through a few of their webpages but its obvious not targeted to small fish consumers :P

Winter is coming and I got a 30KwH 48v lifepo4 bank and I just realized it would work great as a... battery lol to store cheap grid energy during the night when prices are much lower and then use that energy during the day when grid energy cost alot more. That all is moot tho if the ac to dc...

Please dont tell me "proper" heating pads has some proprietary technology that does something a normal 25 buck ass warmer cant do to to justify a 200 usd mark up price as the battleborn heating pad.

Does the pwm component (pulsating between 0v and max volt?) deliver more energy from a solar panel then just having the panel directly connected to the battery?

Note that topbalancing this precise is totally unnecesary and most likely more harmful than good considering having cells stay at high voltage with 99.9% SoC This pack is a 560ah 12v lifepo4 being balanced with 35mA only between 3.644-3.650v. Cell difference is 1mV or less at 99.9 SoC or more...

Find it quite interesting how they just clamp the wire right ontop of the lug like as it was a bubble gum lol. Must be some tremendous force It is a proper fused crimp tho. The crimped part of cable and the lug is one solid block of metal.

In the manual of epevers ssc they for example recomend 3x38 voc panels but states 4x38 voc is max. This is for 200v/48v ssc. Why isnt max amount of panels recomended? Im using only 2x40 voc panels which gives around 64volt max power voltage which is perfect for a 48v lifepo4 bank (58v max)...