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Anyone have this BMS?? - my NORTHERN team swears by it -- but just checking your guys .. apparently they saw this a while back on and picked one up recently ... they say much better than DALY and cheaper ... (although prices does seem to have gone up about 40% in the last month I guess to keep...

So our contracting folks send us a note today saying that if we were going to be purchasing panels over the next 6 months if we could go ahead and do a massive order NOW that would be helpful to them. The only time they ever ask us to spend money sooner than later is when they are getting...

Good morning from South Texas where for some absurd reason it will be 90 degrees again today and windy .... Hard to feel like Christmas when its 90+ -- but now I know how the Aussies feel ... its I need to find a manufacturer of a device or platform or capability that will allow me to stack...

I can't find it but a while back one of the regulars was going to try to make his own Flexible Electrical Mesh bussbars and do some tests... did that ever occur?? Does anyone have any info on this?? .. reason I am asking is that in a couple of places I am about to put some 400aH 3.2's I sort...

I0 know this is like asking the "which is best, Ford or Chevy" question, BUT .. I need a 24-48V 80-100A solar charger for a project - that can take as many panels as possible ... that is bullet proof and reliable -- that i can literally stick on a mountain pass and never see it again ... just...

https://www.amazon.com/gp/product/B07GR6P3RN?pf_rd_r=2NBQ4G4HVQ0C3BT06FWS&pf_rd_p=8fe9b1d0-f378-4356-8bb8-cada7525eadd&pd_rd_r=a1b39e36-5220-4779-9e85-5833cfca578f&pd_rd_w=6GLC4&pd_rd_wg=AhG0q&ref_=pd_gw_unk&th=1 Programmable 400W DC Electronic Load Battery Load Tester DC Tester 0-150V 0-40A...

OK - YES I POSTED THIS ALREADY UNDER BENCH TESTING BUT FIGURE YOU GUYS WERE REALLY THE ONES I NEED TO BE ASKING ...

YES I know - Chinese - cheap - not a Big name brand -- BUT my question is - is anyone using this and are they having any issues ... I'm disappointed that it does NOT have a comms port (seriously!!??) and you have to program it all by laptop or screen ... but the reviews other an that seems...

OK - so probably does not meet the exact definition of Grid-Tie but here is what I want to do ... We have a small single story 2 bedroom house that our contractors stay in here while they are visiting and working ... Its normally occupied 7 days a week ... We have a huge generator providing...

LOTS OF RAMBLING - SKIP TO THE LAST SENTENCE IF YOU ARE IN A HURRY... Yes i know i should have posted this in the SCC section but most of the ppl i hang with are here so one of the moderators can move it to the right section once I get busted ... SOOO we have this SECURITY subcontractor out...

Does someone have a quick CHEAT sheet (or settings) for setting the parameters of a EPSOLAR MPPT charger using it with a LiFePO4 battery. I have them taped up at the office but that's an hour away and no one is in today... We are using a EPSOLAR 40A MPPT with a MT50 monitor on a pair of 200aH...

My company has tasked my team to design, build, install, service and support approx 50 (fifty) OFF-GRID systems. Absolutely no way that my team can remotely do this - we don't have the expertise, time, capacity or training. We are looking for a contractor - with experience - that can install...

SO - one of my remote teams has been told that they need to develop a BESS (Battery Energy Storage System) that can supply a peak demand of 1.8 megawatt (MW) for one hour for a 13.2 kilovolt (kV) grids. Basically a storage system with energy storage capacity of 2.5 MWh Yeah - pretty damn big...

So corporate is going to purchase a dozen of these for us to put onto various trailers ... anything that I need to know thats going to keep me up at night ???? https://watts247.com/product/pip-3048lv-mk/

So i am on day 35 now of waiting for my 280aH Xuba batteries to even reach FEDEX in the States ... my two other orders from 2 other companies have already been here for two weeks and already installed. My question is - how long are your guys XUBA batteries taking ???

The 3048LV-MK is doing basically what we want them to do -- although it does not have Bluetooth or wifi built in ... BUT I'm looking for a new date for the prom ... SOOOO is there something you would recommend instead - just looking for something about the same or better ... I'm paying about 450...

I need recommendation for 100A 24V 16S BMS with Bluetooth.... THX

https://www.alibaba.com/product-detail/4pcs-batch-LF280-LEP-3-2V_62483436488.html Dongguan Lightning New Energy Technology SO a guy that my boss follows because he explains solar stuff very detailed is He apparently got (4) 280aH 3,2v LIFePO4 batteries delivered pretty damn quick for 116...

https://www.aliexpress.com/item/1005001563505796.html?aff_platform=shareComponent-detail&sk=_9fYkO3&aff_trace_key=1fb9477c162945d8b8a2cc7072d451d8-1610125604643-05567-_9fYkO3&terminal_id=4c3a8825d0ca435796150a35f4d54437&tmLog=new_Detail So these were are about $384 for (4) 280aH batteries -...

So we are in the process of purchasing (2) of the MS Barcelona's .... from what we have seen and heard they are bullet proof - can take in up to 600VDC -- and from my experiences with MS they have customer service beyond all others (ie they actually pick up their phones from 8-5) (and they...

So thought that I would run this by some of you and get your thoughts on the design. I need to operate a helicopter safety beacon (MEDEVAC) that is 120V 60Hz 12A and run it 24/7 ... 365 ... infinity ... Beacon is on constantly ... what I do currently have are (10) 400-455 solar panels that...

WHAT BMS IS THIS ??? Go to the 11:04 mark of Wills last video ... I have even put this up on the 72in at work and can't make it out ... but would love to get some of these to play with

I sort of asked this question a few days ago and got a couple of good answers ... but thought I would re-word it and see if I get anything different ... So my company has donated (10) 445W solar panels and a battery to power a mobile aide station for one of the counties we work in. These were...

We are about to install (3) banks of 280A 48V LiFePO4 batteries and connect it all together to feed either a 48V Sunny Island or a 48V EG4 -- I can't remember which one since the other team is doing that part ... BUT my question is -- and again being the laziest engineer that this oil company...

I have sort of asked this before - BUT this time we have "true" z-purlins with that little curve lip on the end that's killing us ... We have about 60 panels to mount and instead of them sending us the mounting hardware equipment we requested - they sent us these 20 foot long "Z-channel" /...

Where can I find PV mounts that will connect to a ZEE purlin??? I have looked everywhere... Go to the 12:35 mark on the YouTube video below where you can see the mount at the back of the panel that is basically just resting on the ZEE ... Thats what I am looking for ... Thx .. I have...

So I searched the forum and did not find anything that i could figure out: We took over an oil-field lease of 200 acres and while doing a site survey they discovered that the previous tenants had left (4) of those DC Solar Trailers (w/o generators) in place. Everything seems to be still...

One of the security guys ran over one of the cables to his solar panels (yes we tell them they cannot lay them on the ground - anyway) ... and sent me a picture of the connectors ... I know what we call these but apparently THATS not the right nomenclature ... do you know the official name for...

So corporate says that we need to paint some of the FRAMES of the solar panels that we are using from Brown to Black ... (long story - crazy sh1t) ... anyway -- I have 10 solar panels that have brown paint on them - came from the factory that colour .. and I need to paint the FRAMES BLACK ...

So management wants us to order a few (6) of these to test and evaluate ... thought I would cheat and get a head start to see if anyone has used / likes / dislikes .... Thx PSW-H (3 kW/5 kW) https://www.phocos.com/product/psw-h-3-kw-5-kw/ AND MORE IMPORTANTLY - what would you recommend...