No no no. You said that a mini UPS and a phone torch can do 85% of what a trolley can do. So you've conveniently chucked in a laptop to support your argument. Although it's nice that you got an opportunity to work your degree in there. Nice flex bro. I personally do not have a masters in electrical engineering but you really don't need one to know that even a mini UPS, laptop and a phone torch can do remotely close to 85% of what an inverter can. And if you can't understand that then "I'm afraid you can't really be helped".
Not flexing at all. Just substantiating that I am fully aware that 1kVA/1kWh is much much more than 60W/100Wh. So just on paper, the power trolley is much more capable than a mini-UPS / phone light / laptop combo. (Sure yeah I chucked in the laptop but I was operating under the assumption that most people are using laptops anyway, desktops are a bit niche and have been for at least the last decade. Laptops are much more mainstream.)
Let's ignore that though. In one breath you say you can do everything (or 85%) with a laptop, mini UPS and a phone torch and in the next you say that it has "orders of magnitude more capability". Pick and argument.
So look at it this way. I drive a Tazz. My neighbour drives a Mercedes AMG. On paper, his is much, much more capable than mine. But in the end of the day, we get to work the same time because he has to sit in the same traffic as me, and listen to the same drive-time presenter as me, even though he spent 20x as much money on his car. So practically there is very little difference. Sure you can argue about quality and user experience, but at the end of the day we both get to work.
So back at you. I've already come up with a few examples:
Things a power trolley can do:
- Allow you to work during load-shedding. (Mini-UPS can do this too, if you have a laptop)
- Keep some light on so that you can put on your pyjamas or brush your teeth (Cellphone flashlight can do this too)
- Keep a fridge cold (but fridges can typically stay cold OK for even up to 4 hours at a time if they're used carefully)
Here, I'll do you a favour and list some things that I can think of which a power trolley can do which my combo can't:
- Run the vacuum cleaner (if it's a very small one)
- Run the electric shaver
- Run the nutribullet for that all-important morning smoothie
Maybe you consider it important to be able to do these things during load-shedding, and that's fine if you do. Personally, I think it's a waste because with a bit of planning you can just rearrange your affairs and get things done when the power is on, rather than spending thousands.
@newby_investor is too enlightened for such things. He's way too busy reading books and getting degrees for peasant activities such as TV.
If you *want* to take offence, by all means, go ahead. I'm not above TV, I just don't find it essential enough to spend large sums of money. Besides most TV is on-demand streaming these days anyway. I'm under the impression that you can even get this with sports, though since I'm not into sports I've never tried finding out how.
So yes, my mini-UPS and laptop can't keep a normal DSTV decoder and large television unit going, you could still get your fix of soccer or F1 on a laptop during the load-shedding.
If you've *got* R10k lying around and you feel like buying a tiny bit of convenience (and a considerable amount of hassle because as pointed out elsewhere these things typically charge quite slowly and can't be used as a UPS, but we'll leave that aside) then go ahead. By all means.
But let's be honest with ourselves here, this is Massmart or Takealot taking the opportunity created by load-shedding to make you think that you might need something that they just so conveniently happen to be selling, and they hope you won't take the time to really think about what value that it's actually going to add.