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Engineer775 is super capable. I'm just saying you should never expect product support from anyone other than the manufacturer if you bought components. If you hire an installer then, yes, they should be your first call as they'll likely have a direct line to the mfg's.

They'll be blown out on the N AZ Wind & Sun ecommerce site. www.solar-electric.com https://www.solar-electric.com/discover-dlb-g24-12v-lithium-blue-battery.html

About 2 containers (800 pieces) of 12V in 100 and 200Ah formats. At mfg cost plus freight. Is there any interest from the forum members in a heavily discounted battery that can be used for anything from trolling motors and RV house banks to golf carts and small solar systems? I‘m helping...

The functionality you’re describing for AC coupling is frequency shift power curtailment and you’re wanting the hybrid inverter to waggle the frequency of the grid to signal the grid-following device to reduce output. I’m very supportive of the suggest to just go with DC coupled approach...

SW will not export but it does have a generator assist function that will effectively work as a peak load shaver if you’re running from a grid source vs. the generator. I’ll say that’s as close as you’ll ever come to getting the functionality you‘re looking for in 24V. Curious: why are you...

Any inverter that is approved to UL1741-SA is designed and approved to sell to grid. Schneider, Outback, Enphase, Sol-Ark, SolarEdge all have offers that do this but Enphase and SolarEdge have fixed battery options vs flexible. I’d strongly suggest you get a pairing of inverter and battery...

Take your stance. I’m just a guy who’s been designing, managing and selling battery-based hardware and systems around the world for 20 years.

Don’t look for support from the reseller. They carry many brands and it’s a very specific thing. Always go to the product mfg for support with a device. If you want support with a system, get an installer.

I’ll add this after reading your last post: Voltronic power electronics are built by a good manufacturer who ODM’s for many other resellers. They don’t have carts to be NEC compliant and they don’t have any experience with north American grid or device handling. Here’s a test for you, see if...

Who’s better at monitoring? You, or a connected system of devices that speak and react to one another in real-time? You’re actually with or representing EG4, aren’t you? That sounds like a rehearsed defensive response. No BMS ever asks for 57VDC regularly, all they’re trying to do is to...

The guy who runs/Practical Preppers is a guy named Scott. He’s smart, a really good, qualified installer and he’s an honest person. To my knowledge, his store is just a side business adjunct to his Youtube channel. He basically made/broke the market open for Sol-Ark because he’s...

Generally speaking, once you integrate battery and PCS comms, you're getting an interactive system where all devices are sharing and reacting to the data and messages each are sending over that bus (typically CAN but Modbus is the norm on large systems). Here are three great examples of the...

Ummm, that's patently incorrect. If the BMS sees that the cell block is balanced and at a good temp, it can dynamically adjust the target vdc from the CC/CV charger to optimize recharge time - the converse is true if the cell block isn't at ideal state. Furthermore, a cell block that's given...

Also, and I know I'm going to get shit for this in the forum, DIY Li batteries are dangerous as hell. I've seen and done a lot of regulatory testing on Li batteries and it's a huge liability to install any Li that doesn't have regulatory certifications.

go with the Victron inverter and then find a lithium battery that's got closed-loop integration with Victron gear over their VE-bus. There's zero point in spending the money on Li batteries if you're not unlocking the potential of those batteries.

Figure out a proven combo of power electronics and batteries that have closed-loop comms integration. The benefit of an electronic battery is that it can talk with other electronics.

If you don't need backup often, save your money on storage and just go with lead. Lithium's a cycling battery and if you're not cycling you won't ever get the value out of them.

Hey Mateo(?), Focus on the power electronics / PCS first (the inverter system) and build around that. Do you need 50kW AC? 240VAC or 208VAC? Sounds like you're grid connected. Do you lose power often?