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Other advantage of the og multiplus is screw terminals instead of lever in mp2. Also peak power slightly less to go with the lower idle consumption Guy Stewart gets into the details a little more. Basically for the US market, og Multiplus seems to be the better choice

They got rid of the DC bus in the original Megapacks and have individual inverters for each module.

Looks like the current mega pack 2 uses 156Ah LFP prismatic cells from CATL: https://bobistheoilguy.com/forums/threads/tesla-transitions-grid-storage-to-lfp-prismatic-cells-made-in-china.377221/ Some good slides there showing the details, they switched from cylindrical in the original...

There was an event that caused one of the mega packs to go up in flames during the commissioning process at the geelong big battery in Australia. The resulting fire caught a neighboring mega pack on fire. Root cause was found to be that there was a 24 hour delay before the SCADA monitoring back...

The Tesla mega packs have passive venting and a thermal roof to deal with the small chance of thermal runaway, and many safety features which we just don't see in the vast majority of diy configuration, or even in one of the walk in type ess containers using rack mounts. Protection/isolation at...

Not sure if the big battery CTO role was his previous position? Still, good to have some locally manufactured competition for Midnite.

My understanding is that in a grid down situation, if you exceed 50A in load the 18kpv will shut down.

with the 18kpv in bypass, it's just passing thru the grid. If the grid actually goes down, then you are left with 12kW of inverter, so you may need to adjust your loads accordingly.

In that test I believe it produced an explosive atmosphere within 10 seconds. Perhaps constant active ventilation to stop the build up of hydrogen vapors wouldn't be a bad idea?

So it seems like a single 105Ah cell can generate over 40 liters of hydrogen. The article mentions overpressure relief panels, I.e. engineered weak points to allow for pressure to vent without catastrophic rupture. Not sure if there's a risk to a standard steel rack mount type battery...

The Midnite breakers are designed for multiple consecutive operations at max load and can control the arc appropriately.

Yes in theory you could have multiple configurations and switch between them. But he needs something to run ve config on.

Only to upload and download configurations via VRM.

Very small numbers in the scheme of things.

It's a double conversion online UPS. Yes there will be efficiency losses versus a standby/offline pass thru UPS. In that case the ip22 would deliver enough power to feed the load and keep the battery in float. Basically battery always fully charged and charger power going to inverter. The...

Laundry loads, one sock at a time.

You could connect the 2 mppts via the vedirect ports and then get a ve.bus smart dongle for the inverter//charger. But you'd only get instant read out type info and wouldn't be fully represented in VRM. Consider it a last choice.

They have them but in a different category, not in the ve.can versions. https://www.currentconnected.com/product/victron-smartsolar-charge-controller-mppt-75v-100v-150v-250v-ved/

So if it's strictly a UPS, for example I have a couple river 2s. You connect your fully charged 24V LFP battery to its mppt port. you connect AC input. in the ecoflow app settings under Labs/advanced you enable the "AC always on" setting. River 2 will power the load via pass thru. Upon failure...

In seriousness tho if that were to happen, in a small claims court proceeding the fact that the owner of eg4 shared the picture with the world at large would seem to imply tacit approval of the configuration as shown.

The real irony would be if there's a failure of one of those 14kWh batteries and the setup picture is used against them to deny warranty coverage due to not following user manual with regard to minimum spacing and support on the bottom of the units.

This will work but a couple of things. Will 300W output be enough? Also the eb3a is known to be quite a defective piece of crap based on many online stories. perhaps consider a river 2 I can tell you that with my Delta 2 max, when using just its mppt trackers connected to a 48V battery,and...

From the metal building backstop may be powering a workshop or other thirsty machines versus a house.

I think I've seen some of their panels for sale at sig solar in the past? That's about all I can recollect. What does the 15k get you?

Prob could be more clearly written but seems like it's saying: 1. Most common cause of damage is by system components outside of the cells and control systems. 2. Secondmost common cause of damage is operational, I.e overcharging due to state of charge limits etc.

Here's what I use with my m8 (5/16th) distributor: https://www.amazon.com/gp/aw/d/B09XDN718G

Looks like top and bottom.

At the very least a confirmation prompt that you really mean to factory reset.

I think his house ended up being a total loss, he was talking about rebuilding.

That's $9300+installation. Apparently there will be additional pw3 units that don't have the inverter brains just additional DC battery capacity, for a $1000 less. so still big premium for capacity expansion.

Ecoworthy 280Ah is hard to beat for bang for buck right now (even cheaper for a pair). Also had good luck with Redodo mini 12V 100ah, and djlb 24Vs.

Is this a case of there being an "admin" type account with a default password?

If you use a global link 520 that will allow you to connect two ve.direct devices to VRM via cellular (and potentially connect more devices for instant readout via BT) https://shop.pkys.com/global-link-520