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MASSIVE restock of EV Batteries at www.batteryhookup.com 5% coupon "POWERWALLS"
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    What spot welder are people using these days?

    I'm ready to purchase something as I've always soldered, and wondered what the good value item is these days? I'm sort of up for anything. I want to spot weld nickel strip, but also if I can spot weld the aluminum tabs on pouch cells, that would be a plus. I'm looking at items on Amazon and...
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    SPIM08HP 6p, 14S, 2.5 KWh batteries made from 7pc BatteryHookup 36V SPIM08HP packs. Easy build.

    Thanks for documenting your build! I've built a battery ~5 years ago which ended up using 63 leaf modules and need to add more as I'm converting everything to electric (and eventually need to cycle them out, although they don't seem to have lost much capacity). That process was a pain, love the...
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    External limiting an GTIL2 SUN-1000G2 with raspberry

    I figured out how to make one work with both legs with the information above in this thread. I wonder if it is also easier on the 1000W models, since they only have to deal with half the current as at 120V?
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    External limiting an GTIL2 SUN-1000G2 with raspberry

    Sorry, I hadn't been paying attention to this forum. I'll try it! So I've only had these two inverters operating for like nine months and we had one of our 30 second power outages the other day - I live in "the middle of the desert" so I think distribution lines get hit by lightning relatively...
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    I'm trying to find some company again I came across some time ago...

    Yeah, their YT channel has some interesting bits, I'm excited to see what their company does because if I were specifying a professional product stack like they have done, I would pretty much do the same thing. https://www.youtube.com/channel/UClLxLrt-f9cD1fHr4CfoR2Q
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    Dala's Leaf buildthread (2015 Nissan Leaf)

    I've been using https://www.jkbms.com/product/jk-b2a24s with a 14S battery built with leaf modules, and it has worked great! It makes me wonder if integrating a couple of https://www.jkbms.com/product/jk-b5a24s/ into a rebuild leaf battery pack would be worth it to extend the effective life of...
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    I'm trying to find some company again I came across some time ago...

    Well, of course after spending an hour googling for it, right after I make a post asking I find it: https://yousolar.com/powerbloc-home/
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    avoid injecting into the grid

    Yeah, sorry to be confusing. At least in my GTILs it is easy to shut off the limiter function in the menu. So I was throwing out some arbitrary thoughts that I probably shouldn't have, because off-topic.
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    I'm trying to find some company again I came across some time ago...

    They were a startup working on a literal component stack shown in a big red enclosure (by their marketing material) on their website. You could interchange all the components for respective size or application, inverters, converters, batteries, etc., also they had a standard relatively high DC...
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    avoid injecting into the grid

    Another option is to install an approved grid-tie system, and then connect inside your house to something like this: https://www.sigineer.com/product/18000-watt-48v-pure-sine-wave-inverter-charger-120v-240v-110v-220v-230vac/ One could even get one of those Inverters and a battery as a manually...
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    avoid injecting into the grid

    I am of exactly like mind. I priced out a system I could install myself for ~$10k with batteries and basically exist fine in terms of power if there were an apocalypse and grid power stopped working all together. The equivalent net-metering contractor installed system priced out at ~$90k, and...
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    External limiting an GTIL2 SUN-1000G2 with raspberry

    I got it working! While writing a script to try polling with every combination of possible parameter values it occurred to me that in the GUI on the device that there was a setting for device number, so I tried changing it from the default '1' to '2', and now I can communicate with device number...
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    avoid injecting into the grid

    I wish my city was like yours. I doubt they will notice or enforce the codes though, my whole city is filled with obvious violations even on my street and none of them have ever had anybody contact them about it.
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    avoid injecting into the grid

    FWIW My municipality will only give out permits for grid-tie systems, and it has to use all UL listed components, be signed off by an engineer, and be installed by an electrician. I wanted to use cheap Chinese/Taiwanese components, used solar panels from a solar plant, a home made battery, and...
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    External limiting an GTIL2 SUN-1000G2 with raspberry

    Is the DB9 port a standard serial port? I have a USB<->Serial adapter plugged into it, and am attempting to read it (first anything I've done with modbus ever), but can't seem to get it to work. I know the serial adapter works because it is working on my MPPSolar inverters. root@raspberrypi:~#...
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    Looking for an AC coupled battery inverter with output power control

    I am utilizing a single MPPSolar LV5048, which has two charge controllers, to solar charge a battery of Leaf modules, and directly power critical circuits, but then using two GTiL inverters for the rest of the circuits. (obtained from here specifically...
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    BMS for nissan leaf modules

    I'm using a cheap generic 60A BMS, but then using a dc/dc buck converter with a Tyco contactor. That handles the voltage constraints for each cell and whole battery. I also have it fused with a type-T fuse (which you should anyways even if you have a BMS that can use a shunt to monitor current...
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    Dude in Utah - U.S.

    Hi, My name is Christopher. I'm interested in playing around with a D.I.Y. Powerwall. I'm amazed at how many people have figured out this whole thing, and with relative safety at that! I studied some EE before finishing out in pure Math, albeit almost 20 years ago :-) I totally lack...
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