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  1. #21
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Spiceman View Post
    Try PSS. I liked their prices last time I got quotes from them.
    Will do - thanks

  2. #22
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    A straight comparison is probably not fair, but as a layman this is how I would compare.

    Gizzu - R3999 - 296Wh - 300W
    Jackery Explorer 250 - R6500 - 250Wh - 200W
    Ecoflow River Pro - R11000 - 720Wh - 600W
    Jackery Explorer 500 - R10950 - 518Wh - 500w
    Ellies Cube Nova - R5995 - 500Wh

    Microcare 1.2kVa Inverter (24v system) with 2x 105ah batteries - R8500 + R5000 for batteries - R13500 - About 1250Wh (if I worked it out correctly @ 50% usage) - 1Kw (This needs to be verified!)
    Last edited by Dirk; 2021/10/28 at 08:09 PM.

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  4. #23
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    https://microcare.co.za/pure-sine-wave-1kw-ups/

    I have one of these. At least there is local support albeit far from JHB.

    Many similar products if you search the interweb.

  5. #24
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by bloudraad View Post
    https://microcare.co.za/pure-sine-wave-1kw-ups/

    I have one of these. At least there is local support albeit far from JHB.

    Many similar products if you search the interweb.
    I have exactly the same at home, is your fan still connected? That fan noise is a killer, I need to move mine outside but then I need to first trench and lay cables.

    (Calling it portable is stretching the truth though!)
    Last edited by Dirk; 2021/10/28 at 07:21 PM.

  6. #25
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Dirk View Post
    I have exactly the same at home, is your fan still connected? That fan noise is a killer, I need to move mine outside but then I need to first trench and lay cables.

    (Calling it portable is stretching the truth though!)
    Aah, yes the fan, that’s still connected. Portable? when you add 2x 100ah batteries @ 30kg each that becomes debatable. At least it has wheels😂.

  7. #26
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    https://www.geewiz.co.za/ups/153286-...-mini-ups.html

    Have been eyeing one of these lately but not sure what the wave looks like.

  8. #27
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Fluffy View Post
    The Mini UPS would need to have an Inverter inside it to drive the MacBook Power supplies.

    Which takes us back to post #1.
    It all depend on how long the backup time needs to be.
    All laptops have batteries..

  9. #28
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Richard Mackay View Post
    It all depend on how long the backup time needs to be.
    All laptops have batteries..
    See my post above, mini ups will not work with a macbook.

  10. #29
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by bloudraad View Post
    https://www.geewiz.co.za/ups/153286-...-mini-ups.html

    Have been eyeing one of these lately but not sure what the wave looks like.
    The general consensus is that if it doesn't BOAST Pure Sine Wave - It isn't.
    Cheers

    ZS5KAD - PROFFESIONAL DUMBASS
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  12. #30
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Lanners View Post
    Thanks for the quick feedback everyone.
    So our laptops are MacBook Pros whose chargers definitely need 220v (Fluffy is right).
    Before this latest bout of load shedding I thought my MacBook battery would be enough - I had a 4.5 hour online meeting today and my battery ran out on me after 3.5 hours, starting at 100% charge. Voice and video of online meetings seems to use lots of battery. (Don't think the battery is stuffed.)

    The Guzzi pack looked interesting but it is unclear if the output is pure sine wave - which probably means its not.
    Will keep searching!
    Thanks
    Firstly, a 4,5 hour online meeting sounds like hell.

    Second can I guess you are using Teams? That is a macbook killer....

    no further insight from my side as to a solution.
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  14. #31
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Dirk View Post
    See my post above, mini ups will not work with a macbook.
    I was not claiming that a mini UPS will provide backup power for a laptop. Laptops have their own backup power,

  15. #32
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    The point I'm trying to make is that when looking for backup solutions you often (as in this case) do not need 220V.
    You pay dearly for generating 220V with an inverter from a battery when all you need is the battery voltage as your backup voltage.
    Looking at electrical/electronic devices we are seeing voltages coming down and that these voltages are invariably DC.
    So there's no need to to generate high AC voltages for backup purposes.
    Apple make it difficult to provide power for their devices but they are under pressure to remedy this. (like they were persuaded to use USB C plugs instead on their propriety standards)
    We are seeing the emergence of DC voltage standards. Watch this space..
    Last edited by Richard Mackay; 2021/10/28 at 10:25 PM.

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  17. #33
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Although I like the idea from Richard it can at times be costly to go out and buy DC chargers if available for Apple products. We all have the 220V chargers already. Having to get an inverter for the Apple units one might as well add the router on it as well.

    Not sure of the quality of these units or if they have a noisy fan.

    https://cctv-direct.co.za/products/1...22e1d3f3&_ss=r

    External batteries not included.

    For local support I also like the PSS indicated by Spiceman. It does have a noisy fan as mentioned.

    The ideal would be to get a unit where the fan only comes in with temperature or as some when you go over say 300W.

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  19. #34
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by ekkekan View Post
    Although I like the idea from Richard it can at times be costly to go out and buy DC chargers if available for Apple products. We all have the 220V chargers already. Having to get an inverter for the Apple units one might as well add the router on it as well.

    Not sure of the quality of these units or if they have a noisy fan.

    https://cctv-direct.co.za/products/1...22e1d3f3&_ss=r

    External batteries not included.

    For local support I also like the PSS indicated by Spiceman. It does have a noisy fan as mentioned.

    The ideal would be to get a unit where the fan only comes in with temperature or as some when you go over say 300W.
    I forgot to say anything about the fan. It only comes on when the machine is workkng hard, especially when the ambient temperature is high.
    Mine was set to UPS mode on the 5 years it was running. It goes through 3 day cycles when charging and discharging in standby. The fan only started up after load shedding when the charging heats up the machine sufficiently.
    Current - 2009 Mazda BT50 3.0CRDi 4x4 d/c
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  21. #35
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Fluffy View Post
    The general consensus is that if it doesn't BOAST Pure Sine Wave - It isn't.
    I find it strange that there are some brands that don't boast about pure sine while one only see it in the specs.

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  23. #36
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Surely this is a pretty good answer?
    https://www.takealot.com/ecoflow-riv...n/PLID73199269
    2007 Jeep Grand Cherokee 3.0 CRD Overland - GDE Eco Tune + 2" Lift on 265/70/17 BFG KO2's
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  25. #37
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Quiksilver View Post
    Surely this is a pretty good answer?
    https://www.takealot.com/ecoflow-riv...n/PLID73199269
    Yes, the Ecoflow was mentioned in an earlier post and is on my short list. The latest cost on Takealot of R12.6k for this is in the same ballpark of the suggested configuration of R12.8k emailed to me by PSS (1500VA UPS/Inverter plus a battery producing 500W @ 2.5hrs). Awaiting for more info from PSS on the specs of their battery pack so I can do a better comparison of the batteries.
    Thanks

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  27. #38
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by Richard Mackay View Post
    It all depend on how long the backup time needs to be.
    All laptops have batteries..
    Not all laptops have batteries that work.

    VERY common for older laptops to only last 20 minutes on battery.
    Cheers

    ZS5KAD - PROFFESIONAL DUMBASS
    3 Land Rover V8's
    NA - TwinTurbo - SuperCharged
    A V6 and an inline 4

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  28. #39
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Why do you need pure sine wave? I thought pure sine wave was required when running something with a motor. Can someone educate me on this please?

    I recently purchased this:

    https://www.geewiz.co.za/long-run-up...kit-1440w.html

    Running:
    2 X laptop
    1 x PS4
    2 X pc monitors
    2 X routers
    1 x desktop computer

    Because it's in line it gives me a chance to shutdown the desktop if need be.

    Pretty noisy when charging the batteries though. Also I went for the upgraded deep cycle batteries for an extra R600.
    Regards,

    William

    4x4 'Tuna

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    “I don't make mistakes. I make prophecies which immediately turn out to be wrong.”

  29. #40
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    Default Re: Home Office UPS with Pure Sine Wave output - Recommendations?

    Quote Originally Posted by willben View Post
    Why do you need pure sine wave? I thought pure sine wave was required when running something with a motor. Can someone educate me on this please?

    I recently purchased this:

    https://www.geewiz.co.za/long-run-up...kit-1440w.html

    Running:
    2 X laptop
    1 x PS4
    2 X pc monitors
    2 X routers
    1 x desktop computer

    Because it's in line it gives me a chance to shutdown the desktop if need be.

    Pretty noisy when charging the batteries though. Also I went for the upgraded deep cycle batteries for an extra R600.
    I have and always do recommend that kit as a general purpose starter set.

    There are however times and applications where Pure Sine Wave is preferred. A bit like choosing between tenderised steak and rump.

    And if you are going to run motors, it really is a no brainer. While some motors are OK with Modified, some aren't.
    Cheers

    ZS5KAD - PROFFESIONAL DUMBASS
    3 Land Rover V8's
    NA - TwinTurbo - SuperCharged
    A V6 and an inline 4

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

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