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mikjamz
7
Oct 30, 2017
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Will this allow pass-through charging (i.e. I can charge the battery pack itself while using the battery pack to charge my devices?
Oct 30, 2017
d3v14n7
7
Dec 11, 2017
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Why would you ever need such a thing? Why not just charge whatever device directly to the wall AND charge the power bank directly to the wall as well? Just buy your typical single to dual (or quad depending on your needs) outlet adapter, a single power outlet can charge far more than 4 devices so there is no issue there...
Dec 11, 2017
AngryAccountant
272
Dec 11, 2017
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A usecase for this would be to use the battery as a battery backup / uninterruptible power supply.
Dec 11, 2017
d3v14n7
7
Dec 11, 2017
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But it's not a UPS (UPS' do more than just allow you to run your computer when the power gets cut, and this thing does none of them), and doesn't claim to be one, it's a power bank... No one would be using this to power a desktop computer, even if it was possible to do so, especially considering there is only a single AC outlet... Beyond that, there would be laptops, tablets and smartphones, which already have internal batteries, so a UPS type device would be worthless for those devices...
If you need a UPS, buy a UPS... If you need more battery life than your mobile devices are able to offer, buy this... There's no need to complicate things...
Dec 11, 2017
AngryAccountant
272
Dec 11, 2017
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I agree, what I was saying is that the passthrough ability is UPS like, hence the appeal for some people.
Dec 11, 2017
mikjamz
7
Dec 13, 2017
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I agree with the AngryAccountant's comments here. For work I have a Siemens G40 "semi"-portable ultrasound device. It is a legacy device without a battery backup supply that takes a few minutes to shutdown and restart between rooms in my clinic (I work as a doctor). I was hoping to get a battery supply that allowed pass-through charging or a UPS (with similar function) to keep my device powered on while transporting it between patient rooms. I don't know of a reasonably priced device which can meet this use scenario though because the device states the max power draw is 600 VA. I think due to that statistic, only a UPS can meet that kind of power draw, but of course it probably isn't drawing that kind of power all the time. I just don't know if a true "battery backup" can meet the power draw of this device or not. It's just that battery backups have better life than a UPS for buying me enough time to get ~20 minutes of charge time per day. Note that I only have 1 plug for the device, not multiple. I'm open to any advice on what to look into. As for now, I found some expensive (>$150) UPS devices which might work but was hoping to get something more reasonable. Any words of advice for that use?
Dec 13, 2017
d3v14n7
7
Dec 13, 2017
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I'm far from an expert on medical equipment, but after looking around for a few minutes, there seems to be multiple "standby" battery units for your specific ultrasound device, meaning the battery will only hold up if the device is in standby mode, which tells me that the device draws a lot of power (far more than this tiny battery bank is able to offer), it's essentially a laptop + the actual ultrasound device right? I'd say that's far too much for this to even come close to handling... Although prices aren't listed for the standby battery units, it says contact for quote, which typically means very expensive...
Also, would you really want to trust this battery bank to power your incredibly expensive and quite fragile medical ultrasound device? I wouldn't take that chance, especially if it's the only ultrasound device you have... I'd suggest you contact Siemens for a quote on a standby battery which was specifically made to work with your ultrasound device, I wouldn't trust cheap, chinese battery banks like this when it comes to crucial medical devices in a doctor's office... It's fine for consumer electronics like smartphones, tablets and even laptops, but I wouldn't bring it anywhere near expensive medical devices...
Hope that helps...
Dec 13, 2017
Bolek
1
May 25, 2018
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...a doctor who complains about $150 expense and continues to use a "legacy" device which obviously is not designed to be portable? Are you for real? Why don't you purchase a REAL ultrasound which IS portable or get a UPS from Costco who will allow you to exchage it after heavy daily on-of cycles within two years. $150 you cheap f.....
May 25, 2018
mikjamz
7
May 26, 2018
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If you're not going to say anything constructive, don't bother replying at all. I'm conscious about money so my office doesn't have to pass on the costs to patients like you.
May 26, 2018
Camez
6
Nov 7, 2018
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Omnicharge does allow passthrough
Nov 7, 2018
Camez
6
Nov 7, 2018
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Plugs may be in short supply. By charging the battery backup AND your device you use only one outlet
Nov 7, 2018
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