Inverter and battery setup for home (microwave)

M

mallik

Galvanizer
I am in Bangalore in an independent house, and there are power cuts when there is a downpour. Looking to buy an inverter battery setup. Usage:
  • 3 lights and 2-3 fans
  • 1 laptop and 1 monitor
  • A microwave (input 1200W)

Microwave will be used for about 20 mins, if at all. Most days, it won’t be used. I am considering at a ~1500-2000VA inverter, and 2x150Ah batteries. Please suggest the best setup for this usage.


Budget: 20-25k
 
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Inverter Recommendation - Brand & specs

Need to buy a new inverter for a floor. Requirement is about 1000-1500w for at least 3-4. Mostly led lights, fans, two routers and a couple of cameras. Maybe a cooler during summer. Power cuts are not common except peak summers, and usually not long, an hour or two max. Peak delhi summers, 1-3...
techenclave.com techenclave.com
 
k_m_Arya said:

Inverter Recommendation - Brand & specs

Need to buy a new inverter for a floor. Requirement is about 1000-1500w for at least 3-4. Mostly led lights, fans, two routers and a couple of cameras. Maybe a cooler during summer. Power cuts are not common except peak summers, and usually not long, an hour or two max. Peak delhi summers, 1-3...
techenclave.com techenclave.com
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I had checked that thread, but didn’t find a definitive answer.

My budget is 20-25k, so I am not sure any of the options mentioned in that thread work for me.

I am going to go to a nearby shop and check out the inverter/battery options.

What I gather from the other threads is that Exide/Luminous Optimus is good for inverter. Exide/Luminous/Livguard is good for battery.
 
In my experience lead acid battery is not good for heavy load.
Say battery is 150ah 12v C10 lead acid. c10 means it will take 10 hours to charge and discharge ie 15A*12.6V = 189W (150ah/10h=15a). So if you go beyond 15A, then battery will drop much faster.

I have two c20 batteries in series and they show battery low when I use 1000w heater for half and hour.

If you have to buy lead acid, then get c10 batteries (not c20).

Or invest in Lifepo4 battery and compatible inverter.

Edit: below points are out of topic considering your budget

I recommend ashapower 2500kva (2100w) inverter. Without solar controller it cost around 25k. Solar included model is around 30k. It's the best copper based inverter in Indian market currently.
But see you area service. And 24v 100ah battery will costs you 37k. Depending on the cells used battery can give 1200w continuous and 2400w for some time.

Other brands 2.5kva inverter will show overload at around 1400w.

And for inductive loads transformer based inverters are best.
 
Considering my budget is low, I have decided to forego microwave usage.

Also, I think I will have to go with a one battery one 12V inverter setup
 
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