Been discussing this on all the threads that come up... I think it's time for my own.
I am looking for an inverter+battery setup for my home office. I checked with a kill-a-watt... The absolute max I've seen this system pull is 220W (on startup). The average/standard draw sits around 140W.
A few conclusions that I've come to. You can tell me if you see any red flags:
@Sapphiron mentioned the Smart Power SPS unit. It's a nice all-in-one unit, albeit pricey. SPS-600 is R6490 on its own. It takes a standard 12V Lithium battery and is PSW.
@RedViking mentioned he got 600W Ceil Inverter from Geewiz for R3000. I would also have to get a battery case/trolley. Maybe something like this from Geewiz. Haven't heard much about this unit though, and not sure it would satisfy all my requirements listed above.
@Park@82 found a nice Securi-Prod 50Ah battery for R3550. I am thinking this could pair with the SPS-600 (R9840 total cost) or the Ceil Inverter (R6695 total cost with the battery case)
Do my options make sense? Any flaws in my thinking? Anything else I need to consider? Do you know of some other solution/combo that would work, at a comparable price?
I am looking for an inverter+battery setup for my home office. I checked with a kill-a-watt... The absolute max I've seen this system pull is 220W (on startup). The average/standard draw sits around 140W.
A few conclusions that I've come to. You can tell me if you see any red flags:
- I don't need a huge inverter. >300W should be fine.
- I want an inverter that will charge the battery and do an automatic switch over when the power goes off (so full UPS mode or whatever its called)
- I will go with a lithium battery. So the inverter needs to "handle" LiFePo4 batteries.
- The inverter should be able to charge the battery quickly between load shedding slots. So I'm guessing it needs to have a charge rate of at least 10A, with 20A being preferable? LiFePo4 battery should be able to handle this charge rate, right?
- With an average draw of 140W, a 50Ah battery should be sufficient for 2.5 hours of LS. It'll run to 3.5 hours at 80% DoD.
- Ideally, the inverter should be quiet as it will be in the room with me. As mentioned by @wingnut771, pure sine wave inverters buzz less.
@Sapphiron mentioned the Smart Power SPS unit. It's a nice all-in-one unit, albeit pricey. SPS-600 is R6490 on its own. It takes a standard 12V Lithium battery and is PSW.
@RedViking mentioned he got 600W Ceil Inverter from Geewiz for R3000. I would also have to get a battery case/trolley. Maybe something like this from Geewiz. Haven't heard much about this unit though, and not sure it would satisfy all my requirements listed above.
@Park@82 found a nice Securi-Prod 50Ah battery for R3550. I am thinking this could pair with the SPS-600 (R9840 total cost) or the Ceil Inverter (R6695 total cost with the battery case)
Do my options make sense? Any flaws in my thinking? Anything else I need to consider? Do you know of some other solution/combo that would work, at a comparable price?