Herr der Verboten
Honorary Master
Wich size tip fits? was it 4 by 1.35?
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Router Battery Backup
- Thread starter werfie
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According to this, Jackery 1000w has a pass through charger so you can use it as a UPS.
greencitizen.com
(Does it switch over when mains fails though...)
Jackery 1000 Watt Generator Overview: Specs, Use Cases, and Honest Pros and Cons
Learn what makes the Jackery 1000 watt generator one of the top portable solar power stations and whether it's the right fit for you.
greencitizen.com
(Does it switch over when mains fails though...)
Last edited:
killerbyte
Expert Member
Anyone know where I can get a solar panel for a Ratel 860P?
Complex's body corporate needs to install a Ratel 860P for the CCTV NVR. I suggested adding a solar panel to the 860P due to the fact that the power for the CCTV NVR keeps tripping.
Complex's body corporate needs to install a Ratel 860P for the CCTV NVR. I suggested adding a solar panel to the 860P due to the fact that the power for the CCTV NVR keeps tripping.
You will need a 50watt panel not sure where you are situated but I bought from them https://www.sustainable.co.za/
A portable power bank is not designed to be a ups. The following for attention in this respect.If you have the background please enlighten us. I don't mean this facetiously.
I would think one would need to see a circuit diagram of the thing or take one apart to see what exactly is happening.
Here is one comment:
Batteries: Is it a good idea to use a powerbank as a UPS for small embedded devices?
Answer (1 of 11): There may be some details in the design of the powerbank that prevent it from being used that way: * The powerbank may not allow charging and discharging (charging/powering the device) at the same time. * The powerbank may switch off its power output after a certain amount o...www.quora.com
Theoretically, it should work, especially considering the fact that most modern power banks support pass-through charging (charging the power bank while discharging simultaneously) and the output voltages are also plenty enough (cause they support fast charging).
But,
The real problem is most power banks trip (turn off and turn on) on connection/disconnection of power supply.
I have a Raspberry Pi and a couple of power banks (both of them support pass-through charging) but they both trip (restart/reset) in case of power failures, which cause the RasPi to completely power off and power on again when the power bank powers on.
So, I think the key here is to find one power bank that supports the following.
Going by this your power bank would need pass through charging.
- Your voltage requirements
- Pass-through charge
- It should not trip on power outage/input
But there also has to be a reason why some manufacturers of larger power banks with built in inverters discourage their use while the Lithium batteries are charging up again.
If this had a negligible effect on the battery life, they would just add that to the list of features and sell more products. Which business does not want to sell more units?
1. They are meant to charge a phone or other USB device, using the internal battery. Once the internal battery is flat, you should unplug the USB device, then charge the power bank.
Many of these power banks do not have sufficient input capacity to charge the internal battery while charging a phone (or any other USB device). Depending on the circuit, some will power either the internal battery only, or the USB-connected device. Others will share the available current between the 2, generally resulting in too little power being provided to the USB device.
2. More importantly, a portable power bank that provides QC (quick charge) 2 or 3 is dangerous to power any random USB device. The QC specs allow for various voltages, up to about 23v. The device being charged is supposed to tell the charger what voltage is needed. Using one of these power banks indiscriminately to power routers, Raspberry Pi, etc can result in the bank providing the incorrect voltage.
Rather use something that is propose-built for the job. Eg, the Gizzu or the Ratel are great for powering modern and fibre termination boxes. However, they generally don't provide sufficient current for a Pi, especially if the Pi has peripherals connected.
killerbyte
Expert Member
Alas you are right. The Ratel only does 2A on the 5V port.
ripclaw
Expert Member
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Not sure. I didn't measure. Was just glad that it worked.
ld13
Honorary Master
Sure, it is not built to be a UPS, but it is 99% there. Worst con with the Romoss ones I use is it resets when the power is cut/restored. But that is a minor inconvenience, as e.g. the wyze cameras I power with them, are barely down for 30 odd seconds.
Re: 1 - Yep, can concur that the ones I use cut the power output in half, but leave more than enough current for all my use cases.
Re: 2 - Been running a few Romoss LT20's and they have been powering random USB devices indiscriminately without fail. Breast pumps, cameras, sonoff bridge, mikrotik routers etc. For a QC powerbank to push out the wrong voltage, something would need to fail. The same thing can happen to a non-QC powerbank.
That said, a purpose-built solution will always be better, but in my case, the powerbanks were readily available at the time, and much cheaper, given that I needed more than one, as e.g. my cameras are in different parts of the house.
like R50 for a better alternative at communica.
HKD ADJ DC/DC MODULE 3A+DISPLAY
Adjustable DC/DC Buck Module with 3 Digit Display Using LM2596S. I/P 3-40V O/P 1,5-35V 3A (Requires 1,5V Differential)Adjustable DC/DC Buck Module Overview LM2596 Analog Control Buck Converter DC-DC Step-down Transformer Voltage Regulator Module 36V 24V 12V to 5V 2A Power Inverter Volt...www.communica.co.za
Always do a test or dry-run when using any of these babies - output voltage is linked to the input. I have yet to find a cheap AVR-type of module that would supply a constant output voltage, not that I have tried very hard.
AirWolf
Honorary Master
Anywhere locally you can get a 2.1mm male to 2.5mm female connector?
ONT has 2.1mm connector and battery connector is 2.5mm
ONT has 2.1mm connector and battery connector is 2.5mm
Herr der Verboten
Honorary Master
These?
Laptop Tips - DC Adaptor Male to Female 14-in-1 Set
Fit any of the included pieces onto a 5.5 x 2.1mm DC power adapter Convert the size of your DC Power Adaptor to fit your laptop, router, media box, and etc.. Made of high-quality materials to ensure reliability and long service life.
edit: oh nm, the other way around.
It cuts power to the outputs, the battery indicator indicates that it is charging, and the load indicator is fully lit but it is hard to know if it was indeed continuing to charge.
In order to get it to power things again, I needed to turn it off (inverter switch), disconnect the load, let it charge up again, and then reconnect the load.
Me to Geewiz:
Geewiz to me:
Me to Geewiz:
Geewiz to Me:
Me to Geewiz:
Geewiz to me:
<couple of back-and-forth follow-ups; Geewiz letting me know they haven't forgotten about me, etc>
Geewiz to me:
Me to Geewiz:
Geewiz to me:
From my experience, and the feedback received from Geewiz, the Ellies Cube Nova can't function as a UPS. It can't charge while it has things plugged into it. It's basically like a large powerbank, rather than something that can function as a UPS.
I think the Ecoflow is the only one that actually explicitly says that it can be used as a kind of UPS.
It's hard to say. I don't think that the battery level indicator is very accurate.
There were basically 6 lights on the front that indicate battery level, so let's say 16.67% per light.
While mains are connected, the lights "above" the current level flash in sequence (presumably to indicate charging). The lights at and below the current level are on "solid". From empty, it will go from 0% (0 lights solid) to 83% (5 lights solid) in under an hour. But that last light takes a good couple of hours to fill up (sorry, I didn't have a timer running, but I can say that I attempted an overnight charge, so from 22:00 until 6:00 the next morning, it still didn't fill up that last light, and somewhere between 6:00 and 8:00 the last light went "solid".
morbill
Well-Known Member
Hi, anybody got info on nenergy batteries, google not helping.
I think Jackery, bigger units at least, can also do that.
The larger Bluetti units may also be capable and at 2,400 recharges vs 800 recharges on the Delta, I'd go with one of those other companies.
Dan C
Honorary Master
Luckily I had some of both from cheap Chinese torches etc. I bought through the years. So I just made my own cable. Works 100%
The Ellies works like a charm
Its powering a ont, a MikroTik router, a tenda router and a raspberry pi
And it doesn't even flinch