Hi Steve, yes. Thanks. I actually forgot to put the shunt in. I have a victron smartshunt, it's connects directly to the SCC to help adjust the charging algorithm. It also has a temp sensor.
Hey bud. I'm also building an off grid setup in country Victoria, upper yarra. And I'm using similar 280ah Lifepo4 batteries in an 8S configuration. As previously mentioned, your solar power is unfortunately woefully underpowered for that size bank. As a comparison, I'm using 6x 370w panels...
Hey Guys
Just looking for a little advice my components list, if you guys see anything that I'm missing or something that is incorrect. Cheers!
6x 400w SERAPHIM Panels 49v Open circuite voltage ( Total 2400W )
1x Victron MPPT 150/100
1x Victron smart battery sense ( for low temp cutoff...
Hey Barry , that's interesting. I want to charge up to around 75 amps with my ANT bms, did you have to change any parameters? or have you noticed any excess heat or issues when charging with the higher current? I'm currently limiting the output from my victron SCC to 50amps so as to not exceed...
Hey bud, it's a good idea getting the larger batteries, they're good value. Your calculations are based on 100% depletion. When you probably shouldn't go past 85% if you want decent longevity, going too low on the lifepo4 is a death sentence. This is why it's important to use the victron battery...
Can I ask few few questions?
1.What BMS you used?
2.Why do you have both the Battgo and BMV-712
3. Were you worries about the low voltage cutoff from the Giandel ? is it too low for Lifepo4?
Cheers!
Hi, Thanks, yep I know it's overkill, but The position of the Tiny is such that in winter it only gets 2hrs of direct light a day. Also the location has 1.5M average rainfall Per year, so plenty of cloudy days. Also I want to plan ahead for future expansion of the system
OKey thanks for the info, Did you consider the Daly BMS, I think I'm happy with it's basic feature set. My only concern is the low voltage disconnect from the Giandel Low Voltage shutdown, which is set to 19v (2.375). From my understanding the Daly BMS will "Over discharge release voltage" at...
OK, I think I've worked out a solution , I'm going to use a Victron BP-220 between the Battery/BMS and the Inverter/24v ELV system. That way it automatically disengage power at 21v, Then engage at 24V.
Yep, have read that re. Low voltage disconnect. Is why I mentioned to have it only on the ELV setup (24v, 12v etc). The victron has a better cutoff voltage than my bms, and reconnecting is automatic. I'm more comfortable with Victron reliability than the bms. going to use the mpp solar 2400w...
True, The prices have actually gone down in Australia since posting this, they were for a while around $200 more expensive, now they're only $80 more. This change tips the scales in favour of 150/85.
Hey guys. We have some solar panels ( 400w SERAPHIM 144 Cell ) And when using the Victron Solar Calculator, it doesn't suggest the 100/50 SCC. It goest straight for the more expensive 150/45.
I've attached a screen grab of the specific specs we input, just wondering if I'm missing something or...