spark88

Unfortunately none in stock.

Hey guys, I'm after a 1 pole 125A DC circuit breaker. The one thats in my batt has died. Struggling to find one in Cape Town. Anyone know where I can get Its urgent.

I tried to run mine from the Venus, and it was too much for the venus, so hence ran it on the raspberry.

Cool, was going to say you were probably missing a pack.

Hey all ... I have the dryness 9.6 kWh battery. I've started to get a load of high voltage warnings on the Venus. Seems to be at 52.4x volts. According to the specs the operational limit for the bat is 54 volts. I've also noticed that I never get to 100% charge. Its always between 97-98 % Temp on the batt has not gone over 33 deg. Batt gets cycled every day. I normally keep about 80 % charge. These are my settings: Battery type = Lithium Charge Curve = Fixed Bulk Voltage: 53.5 Float Voltage: 51v Sustain Voltage: 49v Absorption Voltage: 52v Absorption Time: 1hr Cut off Voltage: 46v DC Input low shutdown: 44v DC Input low restart: 48v DC Input low pre-alarm: 48v Dynamic Cut Off Values: 46v (all options) Restart off-set: 1.2v Any help / pointers / things to check would be most welcome.

Hey .... you simply add "ui" at the end of the URL once you have setup your nodes: For example -> http://192.168.1.1:1880/ui

So the cloud coverage data isn't really that reliable, but I have the left the information in the dashboard ... however I've been busy with a few other things. Primarily I want to limit how much I draw from my batteries, so I built in a "Limit Battery Discharge Feature". Thanks @deapsquatter for the help. It kind of operates like ESS Optimised mode, except that: 1) I control how much juice I want to draw from the batteries. 2) I can set the level of juice used based on the SOC. 3) I can set different juice usage levels for day and night 4) If I hit my minimum level, then I set a recovery period for the battery So in effect it gives priority to the Grid and then the batteries, and doesn't drain the batteries super quick when there is a heavy load. TODO: Make sure that the batteries get a full charge at least once a week.

awesome ... thanks @plonkster. I seem to be well within all the parameters, which is good to know.

Calling on all the battery guru's out there. Does anyone have a best practice for Lithium Battery (I have Dyness) .... specifically if used with Victron. Things I'm thinking of: - What is the most damaging factor for your battery (would it be temperature ? If so what is a safe range ?) - Would it be better to drain the battery slowly over a longer time than high load over a short time ? - Would it be better to slowly charge it, vs pumping as much as you have into it ? - Recommended DOD ? - Should you charge the batteries to full 100 SOC at least X times a month ? Or is it ok to leave it at say 80% Just some of my thoughts ... please feel free to add others.

OK ... so added a little weather information. I check the cloud forecast for tomorrow. Based on that I'm controlling how much I use from the battery during the night. Just a trial at the moment to see if it has any benefit.

Ok ... load shedding info added.

Nice !

Ah nice ... I'll add that.

Quick update ... I added ESS mode now.

So since I've setup my blue install I have come across node red ... awesome is all I can say. Last night I hacked together a little UI with some information that I wanted to see. It also shows the grid status and announces if the status of the grid changes. On the configuration tab I've added manual switching of relays on the venus for a start. I'll of course add to this as I go along and update here. Things on the road map: - See if I can use sun forecasting to determine how much I discharge the batteries at night - There are certain things I want to control given the various states my system is in - Add a button to control modes of ESS if needed (rather than having to go through the menus on the Venus) NOTE - Victron actually has a node-red ready version of Venus OS. Super nice, but I found as soon as I start using the UI it kills the performance of the venus. NOTE - It was night time when I took the pic, hence no PV The flows are available from here: https://github.com/sparkmark/victron_node_red