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OK so I'm trying to work out if my growatt 12000 has CANBUS or not. I cannot seem to get it to work at all with a pylontech type battery. Has anyone who has one of these inverters tried using CANBUS? I've even tried probing all the pins to see if I can see the 120 Ohm termination resistor...

I started a discussion here regarding an odd discrepancy between my batrium shunt and charging on the growatt 12000T DVM: https://diysolarforum.com/threads/odd-inefficiencies-in-growatt-12000t-dvm-unit-vs-batrium.29954/ I thought I would ask here to as I'm now into the troubleshoot phase. It's...

Charging question using a GROWATT 12000T DVM and Batrium. I've been upping my charge current from the grid each night on a new system. I started off at 30A and moved upto 60A (into a 280aH LiFePo). I noticed that power usage by the inverter changed each night from 2.8kW at 40A, 3.6kW at 50A...

So whilst I'm struggling to get anything out of either the RS-485 and canbus on a SPF 12000t I noticed on the growatt website that they *may* have settings for TOU and load-shifting (see image). Now my growatt dongle has been a bit hit and miss but this may be one way of switching between the...

Ok can anyone help me understand the priority/setting of the batrium charging profile. There's basically 4 control parameter that seem to control the charging - Note I am setting this up for a 16s LiFePo4 setup Cell Hi Cutoff: 3.65 Supply Hi Cutoff: 58.4 (3.65*16) Shunt Hi Cutoff: 58.4...

So I built my nice 16s 280aH LiFePo4 pack and top balanced it. Unfortunately I top balanced it in a location that is nowhere near the invertor. I now need to either lug a 200lb pack into a very awkward space Discharge a 13kWh pack at 3.3V - read very long time Dismantle the pack and remove...

So I know the growatt has a transfer switch to move over to grid power. Question is when does it do that and what is the consequence. i.e. if the battery needs charging from the grid does it switch the output over to the grid and then charge the batteries or does the grid supply simply get...

Anyone familiar with Square-D circuit breakers? I just ordered the following on ebay and now I'm thinking it might not be a shunt-trip but only has an aux switch: https://www.ebay.com/itm/353475617286 P/N is KHL3625025DC2350 (W/ AUX SWITCH SHUNT TRIP) but I cannot find any details in the...

Thinking about how to put together a 16s2p LiFePo4 2x280Ah pack with a Batrium shunt. Each string has it's own K9 to monitor. I'm trying to work out if it's better to tie the two strings together close to the battery and then put the shunt on the negative terminal right there (I could use wire...

I remember seeing but cannot find an alternate manual from a different company that had a lot more detail in that matches the growatt SPF 12000T series. Anyone have a link? Also does anyone know if the unit can be used outdoors? I'm not sure because of the fans on top?

Does anyone know if the Growatt SPF series has to be connected to a 48V battery source? i.e. I intend to use the Grid for charging and was wondering if the unit would work if there was no battery at all - I'm thinking the case here is if the BMS detects a fault and shuts down the battery you can...

I'm currently debating the best place to store a 16s2p battery pack (280ah cells). One option is under the house where it should remain cool but under the house makes me somewhat nervous even if LiFePO4 are supposed to be safe. This should keep them out of direct sunlight and generally cool...

I'm looking into maybe using the new batrium core and MM8. This will be a 16s2p setup with two MM8s. I was wondering if anyone know if the Batrium talks to the Growatt over CANBUS? I don't see it advertised on their website but I know the Growatts are just a brand name - Should I be looking...

I'm looking into a BMS for a 2p16s using 280aH LiFePo4 cells. I initially thought the Batrium watchman 5 with the 500A shunt would be an ideal solution but am I right in that it will only do 15s not 16s? If so I presume if I wanted to use Batrium (but don't have to) then I would need the...

Alibaba Noob here. So looking at buying some cells from @Amy Wan (Luyuan) from their alibaba site (16x cell with free shipping). The ones I'm looking at are DAP only for shipping. How much of a pain is that vs DDP? Is it fairly straight forward to sort out or should I ask to get DDP?

First post! I'm thinking of moving most (not all) of my main-panel circuits (including a fairly low power A/C unit) onto an off-grid panel that is powered by a growatt 12000T. The main reason for this is TOU load shifting (our afternoon rates in socal are 60c/kwh and going up). I do...