Hi Esteemed Members

I am a newbie here looking for a bit of guidance, I hope to learn from you all.

I am in a three bedroom flat in a complex, looking to install a backup system to run my house during load-shedding.  I am looking to install a basic system that will run my lights and a few plug points to run the TV, Soundbar, Wifi + Router, External Monitor when working usually during the day - TV will be off mostly when this is on - and possibly charge the laptop here and there. Basically a very small load as kitchen and everything else will be off. I estimate my load to be about 350W. I don't want a plug and play solution as I want to run the lights as if no load-shedding has happened. I also cant install any solar panels as I am in a complex.  I am also keen to go Lithium for longer battery lifespan. 
This is where I need help I am thinking of getting a 24V, 3KwH inverter and a lithium battery pack for this. I have not clue as to which battery to buy nor which inverter. I am looking for a cost effective solution and would appreciate any recommendations from the knowledgeable members. 
 

I look forward to the recommendations. 

Edited October 9, 20223 yr by Eishkom

This is just my suggestion and I'm not an expert

Please read my experience with a 24v system here

I don't think to such a large inverter will give you any benefit if you are only using 350w, so save some money and stick to a 1kw system.

I would suggest this combo of inverter and battery (I am only using sustainable links because I like that the website has alot of products and gives info of the products, once you have made a decision you can shop around and get better prices)

Reason for that combo is the inverter has a max output of 1,2kW. Just that extra 200W for extra piece of mind. The battery has a 1C rating, so can discharge at the max the inverter can handle. Also 1,5kWh battery @ 350W discharge should give you 4-5 of power. If not you can have 4 batteries in parallel.

12 hours ago, sjp100 said:

This is just my suggestion and I'm not an expert

Please read my experience with a 24v system here

I don't think to such a large inverter will give you any benefit if you are only using 350w, so save some money and stick to a 1kw system.

I would suggest this combo of inverter and battery (I am only using sustainable links because I like that the website has alot of products and gives info of the products, once you have made a decision you can shop around and get better prices)

Reason for that combo is the inverter has a max output of 1,2kW. Just that extra 200W for extra piece of mind. The battery has a 1C rating, so can discharge at the max the inverter can handle. Also 1,5kWh battery @ 350W discharge should give you 4-5 of power. If not you can have 4 batteries in parallel.

Very good advice. I installed a similar system and it works perfectly. TV and lights stay on, makes load shedding much less annoying.