Router Battery Backup

Speedster said:
What is the wattage on that, about 20w?

By those rough numbers @joshuatree ran about 15w for three hours, so 45wh, for 50%.

The specs are for 4*2200mah batteries but doesn't say anything about their voltage. 4*2200mah at 12V is 105Wh, which roughly agrees with 45Wh being 50%.
Click to expand...
Those would be 18650 batteries, so depends how they're wired. This was covered a few pages ago, one of the suppliers told someone they opened the device and checked. (18650 nominal voltage is 3.6 iirc. 4.2 max, 3.2 min? maybe? someone can fix that for me. So 4 in series gives you 14 odd volts average, at 2.2 amps for 1 hour (theoretical). I.e. 30 odd watts for an hour. LOL at my "precise" calculations.
Anyway, you get the idea.
i.e. Nowhere near 105Wh. It's only 4 little batteries. Common sense should tell you that's currently impossible.
 
K3NS31 said:
Those would be 18650 batteries, so depends how they're wired. This was covered a few pages ago, one of the suppliers told someone they opened the device and checked. (18650 nominal voltage is 3.6 iirc. 4.2 max, 3.2 min? maybe? someone can fix that for me. So 4 in series gives you 14 odd volts average, at 2.2 amps for 1 hour (theoretical). I.e. 30 odd watts for an hour. LOL at my "precise" calculations.
Anyway, you get the idea.
i.e. Nowhere near 105Wh. It's only 4 little batteries. Common sense should tell you that's currently impossible.
Click to expand...
So you're saying it's 8.8Ah at 3.6V? That would be a total of 30wh. How do they then get the 3 hour usage on two routers for 50%? For that to be true the combined usage of the two routers above must be 5w.

Edit: this link (https://sinetechstore.co.za/wp-content/uploads/2020/01/OmniPower-Ratel-Micro-UPS-Range-1.pdf) indicates 60wh for the 430 and 200wh for the 860, which is double the battery capacity of the 430.
 
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Speedster said:
So you're saying it's 8.8Ah at 3.6V? That would be a total of 30wh. How do they then get the 3 hour usage on two routers for 50%? For that to be true the combined usage of the two routers above must be 5w.

Edit: this link (https://sinetechstore.co.za/wp-content/uploads/2020/01/OmniPower-Ratel-Micro-UPS-Range-1.pdf) indicates 60wh for the 430 and 200wh for the 860, which is double the battery capacity of the 430.
Click to expand...
See here , post #7 , it shows the Raycore CPE's power consumption as < 5,5W :

Fibre CPE power consumption

Does anyone know how much power a fibre CPE uses? If you have one you should be able find a rating in watts, amps and voltage on the device somewhere. I want to know for setting up a backup power system fyi.
mybroadband.co.za mybroadband.co.za

----

This power consumption ( < 5,5W ) was used together with my router's power consumption which is 5,4W in my decision to buy the Ratel 430m.
If needed I planned to buy another unit, but happy so far.
 
joshuatree said:
See here , post #7 , it shows the Raycore CPE's power consumption as < 5,5W :

Fibre CPE power consumption

Does anyone know how much power a fibre CPE uses? If you have one you should be able find a rating in watts, amps and voltage on the device somewhere. I want to know for setting up a backup power system fyi.
mybroadband.co.za mybroadband.co.za

----

This power consumption ( < 5,5W ) was used together with my router's power consumption which is 5,4W in my decision to buy the Ratel 430m.
If needed I planned to buy another unit, but happy so far.
Click to expand...
Yup, I'm leaning towards those batteries being around 100wh, so they should give you plenty juice for your routers
 
Hi, looking for something like a power bank or small simple setup to power my 2 routers for load shedding.

Router 1 = 12v + 2amps = 24w
Router 2 = 19v + 1.75amps = 33.25w

Total draw is 57.25w

Not interested in a expensive setup, so no inverter and 100ah batteries. Only need simple setup, cost between 1kand 2K max.

What about this on Takelot

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.
www.takealot.com www.takealot.com

INCLUDES
-----------------
- UPS 12V DC 57.72Wh / 4800mAh
- DC cable: 5.5*2.5mm to 5.5*2.1mm
- DC adapter: female 5.5*2.1mm to male 5.5*2.5mm
Please note: does NOT come with AC to DC 12V power supply, use your existing power supply or purchase separately.

So it seems it can handle the watts, but not sure for how long?

Someone posted a review on it

There are 6 2600mah batteries in this and it charges at 400ma so from completely drained you are looking at close on 30 hours to charge this. As a result it is providing 1.6A for your devices not 2A.. The switch needs to be in the ON position for it to charge A fiber converter uses 0.6A and a check your router, you may only need a 2.1mm DC splitter, not two of these. My router and fiber converter combined come to 1A so I just use a splitter
 
KOPITE said:
Hi, looking for something like a power bank or small simple setup to power my 2 routers for load shedding.

Router 1 = 12v + 2amps = 24w
Router 2 = 19v + 1.75amps = 33.25w

Total draw is 57.25w

Not interested in a expensive setup, so no inverter and 100ah batteries. Only need simple setup, cost between 1kand 2K max.

What about this on Takelot

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.
www.takealot.com www.takealot.com

INCLUDES
-----------------
- UPS 12V DC 57.72Wh / 4800mAh
- DC cable: 5.5*2.5mm to 5.5*2.1mm
- DC adapter: female 5.5*2.1mm to male 5.5*2.5mm
Please note: does NOT come with AC to DC 12V power supply, use your existing power supply or purchase separately.

So it seems it can handle the watts, but not sure for how long?

Someone posted a review on it

There are 6 2600mah batteries in this and it charges at 400ma so from completely drained you are looking at close on 30 hours to charge this. As a result it is providing 1.6A for your devices not 2A.. The switch needs to be in the ON position for it to charge A fiber converter uses 0.6A and a check your router, you may only need a 2.1mm DC splitter, not two of these. My router and fiber converter combined come to 1A so I just use a splitter
Click to expand...
I'm assuming those amp numbers are for the power supplies? If so the actual amps needed is considerable less. Your "problem" is the 19v router, so the 12v guy you linked won't work.
 
Speedster said:
I'm assuming those amp numbers are for the power supplies? If so the actual amps needed is considerable less. Your "problem" is the 19v router, so the 12v guy you linked won't work.
Click to expand...

No, they actually on the router written
 
Worst case scenario the 24w router can maybe function on its own perhaps for load shedding. Would that be a better and less expensive option then
 
KOPITE said:
No, they actually on the router written
Click to expand...
Those would be the specs for the power supply then. Actual usage would be a lot less.

For the 12v guy I would recommend one of the ratel products (either 412 or 430). I'm not sure what is available for 19V solutions.
 
KOPITE said:
Hi, looking for something like a power bank or small simple setup to power my 2 routers for load shedding.

Router 1 = 12v + 2amps = 24w
Router 2 = 19v + 1.75amps = 33.25w

Total draw is 57.25w

Not interested in a expensive setup, so no inverter and 100ah batteries. Only need simple setup, cost between 1kand 2K max.

What about this on Takelot

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.
www.takealot.com www.takealot.com

INCLUDES
-----------------
- UPS 12V DC 57.72Wh / 4800mAh
- DC cable: 5.5*2.5mm to 5.5*2.1mm
- DC adapter: female 5.5*2.1mm to male 5.5*2.5mm
Please note: does NOT come with AC to DC 12V power supply, use your existing power supply or purchase separately.

So it seems it can handle the watts, but not sure for how long?

Someone posted a review on it

There are 6 2600mah batteries in this and it charges at 400ma so from completely drained you are looking at close on 30 hours to charge this. As a result it is providing 1.6A for your devices not 2A.. The switch needs to be in the ON position for it to charge A fiber converter uses 0.6A and a check your router, you may only need a 2.1mm DC splitter, not two of these. My router and fiber converter combined come to 1A so I just use a splitter
Click to expand...
I have an Asus router which also needs 19v 1.75a

Managed to get one of these on gumtree : (rsaweb were giving them away for free to customers), 12v 3a = 36w, perfect for the Asus routers

Product Not Available

Product Not Available
m.alibaba.com m.alibaba.com
And got a 12v to 19v step up transformer to work with it. Then needed a 4.0mm x 1.35mm cable tip (or you can cut the Asus power supply and use that).

Order two of those and you'll be sorted. Shipping with DHL costs quite a bit but may end up about 2k total.
Alternatively wait for the Ratel 860p (60w) stock to arrive, which may be mid March according to sinetech.
 
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KOPITE said:
Hi, looking for something like a power bank or small simple setup to power my 2 routers for load shedding.

Router 1 = 12v + 2amps = 24w
Router 2 = 19v + 1.75amps = 33.25w

Total draw is 57.25w

Not interested in a expensive setup, so no inverter and 100ah batteries. Only need simple setup, cost between 1kand 2K max.

What about this on Takelot

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.
www.takealot.com www.takealot.com

INCLUDES
-----------------
- UPS 12V DC 57.72Wh / 4800mAh
- DC cable: 5.5*2.5mm to 5.5*2.1mm
- DC adapter: female 5.5*2.1mm to male 5.5*2.5mm
Please note: does NOT come with AC to DC 12V power supply, use your existing power supply or purchase separately.

So it seems it can handle the watts, but not sure for how long?

Someone posted a review on it

There are 6 2600mah batteries in this and it charges at 400ma so from completely drained you are looking at close on 30 hours to charge this. As a result it is providing 1.6A for your devices not 2A.. The switch needs to be in the ON position for it to charge A fiber converter uses 0.6A and a check your router, you may only need a 2.1mm DC splitter, not two of these. My router and fiber converter combined come to 1A so I just use a splitter
Click to expand...

Product states 12V 2000mA output, so don't think be enough for the Asus at 19v 1.75a
 
What would I need to power the living room for 2:30 hours x 2 per day. Screenshot_20200201-231312_eWeLink.jpeg
 
Speedster said:
You need an inverter providing at least 100w with 250wh effective capacity. So anything bigger than 150VA and 600wh capacity (assuming lead acid batteries) should work.
Click to expand...
I appreciate that.

Should I buy an inverter or a ups

@biometrics would for a 100w make sense to buy lithium ion, the lead acid batteries generally take soo much space.
 
supersunbird said:
You seem knowledgeable, able to answer this one?
Click to expand...

A gel-type battery can be discharged deeper than a regular one - about 15%

So a regular battery "could" be damaged if it drops below 11.5V
A gel battery will recover from down to 10.8V

However, an "intelligent charger" circuit is better able to recover flat batteries. It pulses the charge, switches off once a minute for between 5 and 8 seconds

I have successfully recovered batteries which measure 5 volts. It takes several days. Some recover, some just get hot, you just have to try
 
Lithium-ion is the way to go

You can get 3.7V cells from LED Select on Bid or Buy and make up a pack yourself
 
Thor said:
What would I need to power the living room for 2:30 hours x 2 per day. View attachment 777934
Click to expand...

say 300Wh, it might help to break it down but if you wanted a one fit solution you need an inverter and battery(ies), a 300/500W inverter would do just fine and then enough backup to last the duration, a single 100Ah on a 12V system would be fine. (you might struggle to get a cheap pure sine wave inverter at a good price though).

might be worth upsizing to a mecer 1200W bundle
 
akescpt said:
How do I setup this?
Click to expand...

those are just sonoff devices (most likely) on an ewelink app there are various kinds for different applications, you want ones that have power measuring though like the POW R2.
 
Don't load an inverter more than 60% of the advertised load
Many of the specs are inflated
Friend bought a 1200 VA inverter. At 800 watts it got hot and tripped out

You also need to calculate the "power factor". Eg: A 200 watt electric motor has a lower power factor than a 200 watt lamp

Calculate the apparent power, or Voltage Squared divided by Impedance, as well as True Power, by multiplying Current squared by the resistance in your circuit. The Power Factor is Watts divided by Volt-Amps.
 
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