Portable Power Stations

STORMERSFAN said:
A couple of ppl stated that they had bought them and we're very happy... Another part of the scam?
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Either part of the scam or they're completely ignorant to what actually was delivered to them.

They might have received something but it won't be a 3kWh power station, most likely a 300-500Wh unit judging by the price.
 
DrJohnZoidberg said:
Either part of the scam or they're completely ignorant to what actually was delivered to them.

They might have received something but it won't be a 3kWh power station, most likely a 300-500Wh unit judging by the price.
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Thanks for the heads up.. Will look elsewhere just to be safe
 
STORMERSFAN said:
A couple of ppl stated that they had bought them and we're very happy... Another part of the scam?
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Did you see these reviews on a screen shot or are they actual users? This is almost certainly a scam. Plenty of people fell for similar scams.
 
Yep, unfortunately the market is rife with backup power system scams. Most people just don't understand any of the specs they're looking at and just see bigger so must be better.

The average Facebook user is also unfortunately the perfect victim.
 

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Park@82 said:
Did you see these reviews on a screen shot or are they actual users? This is almost certainly a scam. Plenty of people fell for similar scams.
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Most of these scams normally run with reviews from hacked accounts or bought accounts.

China fake review trade is still going strong even with Amazon and Facebook clamp downs. In fact its now a thing more than ever with the rising unemployment hitting China.

Simple VPN and some clever botting, esp seeing that AI can help write if you don't know English etc is gonna be harder to spot the real from the fake.

Example Just asked ChatGPT to fix above...

Many scams rely on fake reviews, often generated from hacked or purchased accounts. Despite Amazon and Facebook's efforts to crack down on fake reviews from China, the practice continues to thrive. In fact, with rising unemployment in China, it has become more prevalent than ever. Perpetrators are using VPNs and sophisticated botting techniques, while advances in AI make it increasingly difficult to distinguish between genuine and fake reviews.
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STORMERSFAN said:
In the comments section on fb
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Yes as others have said, def a scam with unrealistic specs/price from an unknown company and I would steer well clear. Their FB page was set up on the 24th March and the two comments I saw there weren't visible. Looking up the listed address on their website didn't fill me with confidence either...

3nsZZiKB_o.png
 
STORMERSFAN said:
Which one would be a better deal seeing as price is almost the same
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The one from Geewiz has about double the battery capacity of that Ecoflow, but slightly less peak output (i.e. the Ecoflow can supply 1800W continuous power whereas the Geewiz one is rated at 1440W).

Those Ecoflow units are also getting replaced by newer ones with better batteries, but they're still good if you want a way more slick solution than the DIY type Geewiz box.

I would go with the Geewiz one personally as it's just more useful and actually has better batteries (more cylces). The Ecoflow is way nicer built and has a lot more modern features. But for loadshedding you want all the battery capacity you can get.
 
Parched said:
Yes as others have said, def a scam with unrealistic specs/price from an unknown company and I would steer well clear. Their FB page was set up on the 24th March and the two comments I saw there weren't visible. Looking up the listed address on their website didn't fill me with confidence either...

3nsZZiKB_o.png
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Thanks for the heads up.. Knew I had to ask the experts before I bought it
 
DrJohnZoidberg said:
The one from Geewiz has about double the battery capacity of that Ecoflow, but slightly less peak output (i.e. the Ecoflow can supply 1800W continuous power whereas the Geewiz one is rated at 1440W).

Those Ecoflow units are also getting replaced by newer ones with better batteries, but they're still good if you want a way more slick solution than the DIY type Geewiz box.

I would go with the Geewiz one personally as it's just more useful and actually has better batteries (more cylces). The Ecoflow is way nicer built and has a lot more modern features. But for loadshedding you want all the battery capacity you can get.
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So if I need 500 watts plugged in.. How long will gee Wizz system last? 4 hours?and does it switch over automatically when LS kicks in?
 
STORMERSFAN said:
So if I need 500 watts plugged in.. How long will gee Wizz system last? 4 hours?and does it switch over automatically when LS kicks in?
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Check the watt hour (Wh) rating and divide by that.

Inverter Trolleys

Buy Inverter Trolleys online at the Best Prices! Door to Door and Overnight Delivery. Voted the best online store in SA. View Here
www.geewiz.co.za www.geewiz.co.za

So a 2560 Wh unit will give you 1280 watts for 2 hours, or 1000 watt for 2.56 hours or 250 watts for 11.2 hours.

However, you must also remember inverter efficiency. Some have efficiency as low as 80%. That means your 2560Wh unit is really an 2048Wh unit, the other energy is lost as heat in conversion from DC to AC and as cooling fan, display etc.

Finally you don't want to run the thing down completely, so don't go less than 90% hence on a new unit you may budget for 1843 Watt hours.

So budgeting all of that in, for that 2560 Wh unit, it should run 500W at least 3.68 hours and you don't destroy your batteries, assuming mediocre inverter efficiency.
 
I'm looking at a backup solution for upcoming stage 8. I'm preparing for a couple weeks without power during Winter this year, because our substation is a dumpster fire.

I've got a Ryobi RG-3500 3000W generator which works wonders for extended power cuts, but it's noisy and smells, I can't run it past 22:00, and I have to drag the thing outside. I use it to power the fridge for 2-3 hours while I watch a movie and charge up laptops, phones. It's wasting fuel because I'm using nowhere near the full AC output.

I need a battery backup solution that's very low maintenance for intermittent use that I can charge via the generator or via Eskom AC wall power. Solar could be cool but I can't install panels on the roof. I don't really care about UPS - I can switch over manually.

This looks very promising: ESBox 3000 Lithium Home Energy Storage System – 2200W
It should easily power the fridge motor with a 4400w surge (I think that's how that works?) and its charge time is 2.5-3 hours on AC, which is great for the generator. A single charge should give me around 12 hours' use based on my average consumption (3000Wh total @ 150w) assuming it charges between 20%-80% (help me if I've calculated this wrong please).

But I don't know what the AC draw will be to recharge, and whether the generator would cope. Does this look like a decent option for my use case?

Also, is powerprovider.co.za a reputable store, and does anyone know where they are located?
 
giggity said:
Also, is powerprovider.co.za a reputable store, and does anyone know where they are located?
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I purchased a Rentech PPS750 from them and in my opinion their service was great.
They are based in Roodepoort.
1681374760912.png
 
giggity said:
I'm looking at a backup solution for upcoming stage 8. I'm preparing for a couple weeks without power during Winter this year, because our substation is a dumpster fire.

I've got a Ryobi RG-3500 3000W generator which works wonders for extended power cuts, but it's noisy and smells, I can't run it past 22:00, and I have to drag the thing outside. I use it to power the fridge for 2-3 hours while I watch a movie and charge up laptops, phones. It's wasting fuel because I'm using nowhere near the full AC output.

I need a battery backup solution that's very low maintenance for intermittent use that I can charge via the generator or via Eskom AC wall power. Solar could be cool but I can't install panels on the roof. I don't really care about UPS - I can switch over manually.

This looks very promising: ESBox 3000 Lithium Home Energy Storage System – 2200W
It should easily power the fridge motor with a 4400w surge (I think that's how that works?) and its charge time is 2.5-3 hours on AC, which is great for the generator. A single charge should give me around 12 hours' use based on my average consumption (3000Wh total @ 150w) assuming it charges between 20%-80% (help me if I've calculated this wrong please).

But I don't know what the AC draw will be to recharge, and whether the generator would cope. Does this look like a decent option for my use case?

Also, is powerprovider.co.za a reputable store, and does anyone know where they are located?
Click to expand...
Yes, I believe Leroy Merlin sources these from those guys too: https://leroymerlin.co.za/esbox-3000-lithium-home-energy-storage-system-ups

Does look like quite a nice solution, just be aware of this warranty condition if you were planning to do something like that:

NOT SUITABLE TO BE CONNECTED TO YOUR DB BOARD. WARRANTY WILL BE VOID IF THIS UNIT IS CONNECTED TO YOUR DB BOARD
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Yes, I also bought from them and their service is great Look at their website for different options It needs to be plugged in the whole time and the fan does not switch off The noise of the fan does not bother me because I have put it in the passage between 2 rooms where it is used It depends on your expectations The battery has 3000 life cycles
 
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