Router Battery Backup

Hamish McPanji said:
What about something like this :

https://www.amazon.com/DROK-Convert...CZPWDG7XJ85&psc=1&refRID=WHW47DG20CZPWDG7XJ85

On a big Powerbank

https://www.amazon.com/KUNCAN-Conve...460&s=gateway&sprefix=usb+to+12v+step+&sr=8-3
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My problem with powerbanks are that you can't plug them in to recharge and supply power to your devices at the same time. That means I have to monitor them and then plug them out and charge and remember to plug them back in.

You do get those that can charge and supply simultaneously, but they're few and far between.
 
Hey guys, hope you all well. Sitting here in the dark which is awesome! So I'm trying to. Figure out which route to go. Our lights at home are sorted fridges etc fine. Won't run a TV. Only looking to run the Huawei b618 router during loadshedding. Ipads last more than enough

I have some Cape Union mart vouchers so I was looking at this

https://www.capeunionmart.co.za/aukey-bp-y7-30-000mah-power-all-power-bank

Will this be sufficient for the router? The current adapter says 12v 1amp. What type of time can I expect in total if I used this?

Where can I get a USB to 12v adapter. Will this work? Thanks!
 
Snyper564 said:
Hey guys, hope you all well. Sitting here in the dark which is awesome! So I'm trying to. Figure out which route to go. Our lights at home are sorted fridges etc fine. Won't run a TV. Only looking to run the Huawei b618 router during loadshedding. Ipads last more than enough

I have some Cape Union mart vouchers so I was looking at this

https://www.capeunionmart.co.za/aukey-bp-y7-30-000mah-power-all-power-bank

Will this be sufficient for the router? The current adapter says 12v 1amp. What type of time can I expect in total if I used this?

Where can I get a USB to 12v adapter. Will this work? Thanks!
Click to expand...
If it is just for the router rather go for something like this - https://www.geewiz.co.za/ups/68271-...-power-bank-supply-b315-b618-cctv-router.html
 
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Snyper564 said:
It is will have a look. Would the aukey last 15 times longer though? Or am I missing something? I know it's a bit more expensive but are my calculations totally off?
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In theory yes, but that would depend on the efficiency of the usb converter you get
 
ebendl said:
The schematic here has a table with a good indication: https://www.electroschematics.com/9462/battery-discharge-cut-control/

View attachment 635344
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This is a very good reference! It shows how and where one could change the the Cut-out voltage. I would set that at 12V (giving you some assurence that the battery will remain above 20% charge level. Secondly, there is a simple "discharge table" on the diagram!

Impressive device! Gets my vote as suitable backup power supply for small devices.
 
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ebendl said:
https://www.fin24.com/Economy/eskom...ding-to-stave-off-national-blackouts-20190319

Better stock up on extra batteries -- we're getting more loadshedding slots.
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Yip, it is just a beginning. Eskom employes are upset about plans of selling Eskom (at least a new two power plants) to the Ramaphosa and friends, leaving obsolete/troublesome power generators in Eskom hands and bringing up non-professionals to the board.

It would be interesting to know whether aluminium smelters are still supplied by Eskom with electricity, the article keeps silent on the issue. Instead they talk about IPP's, thats good and aluminium smelters should be first on the IPP list, but they are not. Isn't it look suspicious?
 
jvrs said:
Will just charge longer, it's not like it won't work
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It will charge longer, yes. However it may trigger a false "battery fail" error and stop charging due to microcontroller expecting to complete charging in a certain time. Intelligent 3-stage chargers try to sense a characteristic voltage drop, a signal that a battery is fully charged. When it happen, full current charging is stopped and then a trickle charge is applied. A faulty battery may spill-out acid if such timer is not set.

In such case cutting of mains power for a moment should restart charging sequence.
 
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Nope not safe to so. Does so at the expense of battery life.. It is expedient because it artificially inflates standby time.
 
Purchased 12AH battery, with intelligent charger and connections will set up tonight. Just FYI most places are sold out of many battery related goodies so do not delay your purchases.
 
It's pretty basic but it seems to get the job done as far as keeping the VDSL up during the later shedding times when I don't want to run a generator.

IMG_3877.JPG
 
Geoff.D said:
Details please.
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Went to electronics FG, picked up an intelligent 1.5A 12V charger +- R600. A 12AH rechargeable battery for +- R600 and connections for +- R40. Hook up tonight. The Geewiz 6 hour solution is only 3700 mah this unit I got is 12000 so expect to get way more than 18/24+ hours out of it.

I literally just need to power the router so this is perfect for me its just the B618. Will keep you guys posted on the results etc.
 
The router current drain when operating normally? any idea what that is?

That charger would be able to recharge that battery back to capacity from flat in 10 hours.
So, a pretty robust piece of kit for a single router and even 5 hours of an outage at a time.
 
Snyper564 said:
Went to electronics FG, picked up an intelligent 1.5A 12V charger +- R600. A 12AH rechargeable battery for +- R600 and connections for +- R40. Hook up tonight. The Geewiz 6 hour solution is only 3700 mah this unit I got is 12000 so expect to get way more than 18/24+ hours out of it.

I literally just need to power the router so this is perfect for me its just the B618. Will keep you guys posted on the results etc.
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Make and model of charger please.
Curious, 7ah go for R200. Why did you go for a larger more expensive battery? 2x 7ah wouldve been better.
 
Ares1000101 said:
Make and model of charger please.
Curious, 7ah go for R200. Why did you go for a larger more expensive battery? 2x 7ah wouldve been better.
Click to expand...

Charger: https://www.perel.eu/products/view/?id=438990

The 7AH were about R350, so I just went with the 12AH for R600. Probably a little bit more on the expensive side but that's ok. Things were sold out everywhere was about the 3rd place I stopped at. Time v money...
 
Can I do the following:

1. Connect charger to wall power
2. Connect charger to battery
3. Connect router to battery
4. Leave connected permanently?

So in short when power is on the router runs off power (and battery chargers) and when power is off it runs off battery. Would this setup work. I think alarm systems, gate motors etc use something similar. Or should I only connect when needed?
 
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