New PCBs from JLCPCB and New Battery Build
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- Опубликовано: 11 сен 2024
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More busbar PCBs for my 24V 8S4P LiFePO4 battery. This will give the Solar Crypto Accumulation Machine a larger capacity and therefore a longer crypto mining run time.
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Pretty cool little boards. They don't do much but the fact that it's so easy and cheap to throw together boards like that now days is pretty awesome.
I completely agree :)
Good Morning to you too, Julian! :-)
I have been out in the garden for about 5 mins and I dug up several hundred ants I guess that is the best way to be an ant miner🙂 nice video I think you should incorporate some windpower🙂I just need now to find someone to buy all these ants for a few dollars
Do ants squeak?
@@JulianIlett only if you hurt them🙂
How many charge discharge cycles are the batteries specified for. I'd go for a solar array that can run the miners at full power + charge the battery. so you can get a longer run than just with sun.
The next best thing would be to wire your shed next doors mains supply. ;-)
I'm not sure the #cycles was specified by the seller, but being LiFePO4 it will be in the thousands. Depends on the upper and lower charge voltages I set on the controller.
In theory, the 325W solar panel could run the 270W miner without a battery, but the sun isn't always shining. The battery accumulates the sporadic, infrequent, unpredictable bursts of sunshine into a useful amount of energy to run the miner for an hour or two.
You really don't need much copper linking the two halves on the in-between connections. For a future version I'd suggest having extra pads so you can directly solder link wires to the boards. That should be easier than making all those link cables.
Solar panels are worth mounting on turntables, even if you don't motorise them. Just give them a nudge whenever you walk past to keep them facing the sun. It really does make a difference. Watch out though, that can easily become obsessive behaviour.
:) or build an motorised sun follower with an Arduino :)
@@followthetrawler That is clearly turntable 1.1
dont forget to always carry a S.P.A.T. at all times for such purposes!
Following the topic. Thanks for your quality content
Looks like some serious kit now. Just need a logo with your face on the PCBs.
What is the gauge of that linking wire? I have solar panels and truck batteries but am worried that the wire I have is too thin. How much current are you expecting this battery pack to supply?
As for the question of solder mask/tinning height, I would have thought that using a washer between the boards would resolve any issues.
Thanks for all your videos. I am a big fan of you, Big Clive, EEVBlog, Dronebot Workshop, and similar channels and have been spending too much money on cheap stuff from China as a result of watching so many vids. I now have so many bits and bobs that I am in need of a bigger shed!!!! Now where might I find some useful videos regarding building a shed? :)
It's 1mm², rated at 14A I think. I'm not expecting to pull more than 20A from the battery.
@@JulianIlett Thanks for that. So about 18 AWG which, curiously, is about 18 SWG.
I like the link PCB concept. The trace widths could be calculated to serve a fusable links. You could use nickle washers in between pcb for mounting?
How many watts and volts for how long on a full charge? I was contemplating on buying a construction battery from a major company but if I can do it cheaper building my own I would definitely prefer it. I was under the impression that the watts was the limiting factor. Please explain the exact rating of the battery and how to understand how it works per cell.
If it’s too much to explain in text please make a video.
what thickness is the copper in the PCB? how did you get it to take 10 amps? how many layers? thickness of layers?
I don't thionk you needed to make that many link wires, 1 per pack so one side needed 4 and the other side need 5. There should be very little energy moving between the cells in each pack as it is just making sure that they are balanced. HBPowerwall combined 2 of his powerwalls into one using tiny wires between the cell packs ruclips.net/video/HN7oaRryOHg/видео.html
Have you thought about a cover? Shorting is done very easily, as you noticed. Every piece of metal should be made 'untouchable' I guess.
Split it in 2 instead of using wires to link them then charge 1 while using 1 cus it's going to take longer to charge and have big gaps in the mining if upgrade capacity it be good idea to add more solar panels ....I'd love to do this I'd get carried away, cor afford it lol
i just need a strip bus bar
Should be an easy circuit board to troubleshoot.😎
Indeed :)
I love to build a headway batt with you PCB for my new 36V delta trike. Sadly my horticulture background lacks any electronics training. But I do follow directions well. Sister Mary Ruler trained me well. Are the PCB for sale or the specs available?
I would run with Higher voltage Solar array Even if means 1200V~ 500V ~ 100V DC Wide range voltage To 240V AC to Avoid battery's altogether
Sometimes I wonder.
I make power every day, granted it can some times only be a kw over the whole day and sometimes it's around 3kw (2 days ago).
I assume that your not inverting?
Have you aligned your panels?
Are you using 12v panels?
I think that your using small 12v panels and this could be a root of the power need. Also if you don't change the angle of the panel you will get a lot less power.
I'd look there and install a optimiser. Aka a buck converter... And use 24v (60 cell) panels on a solar tracker. (2 panels) if your garden is big enough. Mines not I've two sets of two and some are 12o off the vertical and I make a few good amps.
But if your miners has PSU that's mains fed, then that's a lot of up and down volting and losses
I'm using a 60-cell panel to charge the 8-cell (24V) battery. The miner is being fed with 12V by a 24V to 12V buck converter.
@@JulianIlett aren't those miners like 30-60 amps?
24v panels are around 8 amps. On a good day.
That's a minimum of 4 panels, but more so 13 panels (UK eqv 8).
I always try matching my in out current as close as possible, that way your not discharging the battery or its on the difference only.
I noticed your previous battery Bank became unbalanced. There are two primary configurations, series and parallel. In series the cells cannot charge each other. However, when cells are put in parallel, they charge each other, unless the outputs are connected behind diodes. The main problem is that you are attempting to charge the cells in series. This will always cause your cells to become unbalanced. The reason this happens, is because each cell discharges and charges at a slightly different rate. Although a bms prevents the cells from exploding due to over voltage, it does not prevent unbalanced cells, which always occur when attempting to charge in series. The only solution is to charge each cell individually with 4.2 V, presuming you are using Lithium-ion batteries. This makes it rather difficult to design the circuit, which will charge and discharge in one unit, since the series connections become shorts when connecting the charger, and will fry the charging unit unless a relay is used to disconnect the series connection when the charger is connected.
That's the purpose of the flying capacitors active balancer - it equalises the voltage of cells in a series string.
@@JulianIlett thank you for the reply. I enjoy your videos.
How much current can these boards carry?
I see you chose an appropriate username for this new pro-hashing account. Finally figured out that crypto mining won't ever pay for the cost of the gear you're buying to run it?
Is there a way to control how much power the antminer consumes? It would be useful to dynamically change the power consumption and add some automation to avoid the 1~2 minute boot sequence with a "stand by" mode.
Yes, on some of them. But changing the power usage re-boots the miner.
Wow. These miners are more evil than I imagined.
How about a solar battery storage system using those cells ? To run your home instead of ant miners.
At this latitude, winter and summer are very different scenarios. In winter, there's far too little solar energy to run a home. In summer, there's far more than you need. Without megaWatt-hours of storage, the summer surplus can't be kept in storage to use in winter. So converting the summer surplus into cash is the best way to store the excess.
Will the balancer not discharge the cells over time if not hooked up to solar?
Yes it will. I think the balancer uses 12mA when running and 0.5mA when idle. The idle mode kicks in when the cells go below 2.65 volts (all these numbers from memory). They do warn that this type of balancer is not suitable for use on very small batteries.
I heard about 'dead bug' but never a 'active bug balancer' style of construction.
Yeah, this is un-dead bug :)
Taking in consideration that lithium batteries only allows arround 1000 charge cycles... I think you will never mine enough crypto fro paying them.
Why 2 links per board?
It just felt right :)
Someone told me he had a setup making $1000 / month mining Raven coin. He was using a Ryzen processor PC. Does that sound realistic?
Coinwarz calc says you can make $3 per day so NO unless he's running 10 machines
@@clixium Thanks. I will get an update from him and see what he is doing now. Back in the day, I mined 30 bitcoins in a month using two powerful graphics cards. Mining can change a lot over time.
If only you'd kept those 30 bitcoins :)
I've just realized that he said bitcoins, it would be sweet to have them at todays price. I was so fed up with mlm ponzi scams that I've took break from any investments online the last 10 or so years. I don't know what's worst, missing the opportunity completely or having a chance and blew it up by selling cheaply
@@JulianIlett In the 1988 housing crash I could have bought an apartment for £60k that is now worth literal millions. I'm the guy who bet on black when it came up white.
Nice... Take my money please...😁
I prefer crypto ;)
@@JulianIlett Gold is money. Everything else is credit... ❤😁
Anything that has value is money. Gold is difficult to store, carry and take across borders. Crypto is available everywhere.
@@JulianIlett "Gold is difficult to store" - how so, it just sits there and doesn't corrode/degrade.
"carry"- one pound is over 24,000 GPB
"take across borders" - a Sovereign mixed with your pocket change won't even be noticed.
@@JulianIlett Yes I heard about possible confiscation again. I'm going the John Wick approach right now. But yes I heard that Crypto can be confiscated also I'm worried about them taxing Crypto electronically. Gotta have a Portfolio nowadays in an IRA.
I can't wait to see how you plan on controlling each miner card based off available solar power and battery status 😬.
Maybe it was asked before, but why are you not delivering power back to the grid? My solar panels generate more than I use in a year, so I am getting money paid out. Why would not you do the same? You are loosing money mining. And yes, you do get heat. So in the winter, okay-ish.
Net metering isn't available everywhere. In fact, with a general trend away from net metering, it would be good to plan for operating without net metering even if you have it now.
My other system (rooftop solar with grid-tied inverter) exports to the grid. The grid export rate is 3p/kWh. If I mine crypto instead of exporting, I can get about 20p/kWh.
@@JulianIlett Okay, did not know the other side of the pond was so cheap. I pay (or get) roughly 25 cent per kWh in the NL. But with current price crisis, things may change over night. Thanks for the answer.
However, I've just been switched to the Agile Outgoing tariff. Now my export rate changes every half hour.
@@JulianIlett That is crazy, I mean, unless there is a signal which you can use to determine when to deliver to the grid. I would not use these LiFePO4 cells for this, they are too expensive just to use them to optimize the grid income. I guess.
Sorry the adds have become too intrusive; every 2-4 mins. One just stopped and you said one word before 2 more adds. No point in watching anymore.
Would you prefer a 30 second baked-in Skillshare advert?
@@JulianIlett Ha, well its better than destroying attention span.