Greetings! I am new to this whole thing but have been rashing people on carbonite and googling for weeks. I need some more (somewhat expert) opinions on a setup so managed to find this place.
I apologise in advance for what might be a wall of text and unnecessary information.
What I need to power:
2x PC's max loading a game in a stressed environment
2x Network switchs / One is a 5Ghz Access point
2x LED high refresh rate monitors (240 and 144)
2x Phone chargers
Wireless phone charger
=Peak at 600W and it averages around 420-450W. Checked with Kill-o-Watt
The above is excluding a 43" UHD TV and two routers. One LTE and one ADSL. As far as my testing goes the TV will never be on when the PC's are on so I have excluded it from the normal readings. Its around 95-100W (probably even less). The routers are low power at around 15W each. So average wattage should be a round 500W to be safe.
Duration: For now its just to stop losing power during the 2 hour load shedding cylces. Sometimes its twice a day but with a 4 hour gap inbetween, its just getting extremely painful to work from home in a small office (especially online work) with dancing around load shedding.
I am trying to work off around 4 hours of loadshedding incase we ever hit higher stages or if there are two in a row.
Potato maths time:
8 Cells x 120Ah x 3.2v = 3072
0,8 = 2467Wh or around about with excluding efficiency loss and such. So going to just say 2300Wh worth of storage.
2300Wh / 500W = 4.6h (or around 4h30m not sure how to work that out exactly)
I am not sure how to work out charge time. But with the RCT inverter it should be 3 hours? maybe? Possibly? No?
Shoutout to PJtheKILL3R from Carbonite, as they have honestly been a lifesaver getting this potato this far.
The Setup in Mind:
R5,350 RCT 3000Va/2400W Inverter Charger (now out of stock on takealot)
R7,600 LiFePo4 Batteries (8x120Ah 3.2v from Lithium Batteries SA)
R2,400 8S to 20S 300A LCD BMS with LCD from AliExpress (https://www.aliexpress.com/item/33014476298.html?spm=a2g0o)
R700 Battery Fuses
Total = R16,050
So overall I just need some advice on this system I am building. I can't seem to find a good BMS locally so I have had to look at AliExpress for alternatives. Which sadly will cost ~$80 shipping to avoid going through the local post office, and the 3 month+ wait, chance of getting lost etc... This along with the RCT inverter being sold out on takealot, I am kinda lost for finding parts once again.