Router Battery Backup

[leon.davibe]

But cycles aside, with the larger watt hour packs like this I’m assuming LifePo4 will also be more robust/reliable?
I’m just worried that a cell dies in the pack or similar and bricks the whole thing, I have no experience with the chemistry, first I've even heard of it. What is ternary even mean?
And what would their shelf life be, how would they fare stored for extended periods at 50% charge state?

High quality traditional chemistry 18650 cells are ridiculously reliable, I have some that are well over 10Yrs old still chugging along perfectly with not much reduced capacity and just about zero increased internal resistance.

Yea also only became aware of tenaryrecently

As far as I have it it is like the normal lithium 3.7v cells just better

claimed longer life higher efficiency etc

Assume like most lithium batteries they would self discharge slow and handle long stints of storage ok

Like the same old petrol with techron

 

[airborne]

Used one of these they are rated at 6amps > https://www.communica.co.za/products/bmt-dc-dc-booster-12-35vout-150w

On the elecstor the top row dc ports are rated 12v 3A max per port. All that ports is on a separate pcb with nice and thick wires and not part of the main pcb like the bottom ports which is rated 8A max for all the ports. So i just soldered my input wires to the main incoming wires that feeds that pcb.

Will have to do more tests to see what the main pcb/bms could handle via that leads the cells i used is rated at 3C (18A).

Only going to power my mini pc running adguard home server current draw was 3.1A when loading windows then it hovers in the 1.8-2.2A range with power settings set on high performance haven't checked other power levels usage yet.

What quality of cells do the Elector units use, do they look decent, like they aren't scraping the barrel with the cheapest chinesium cells they can find?

I’m really keen to get the Elecstor 314Wh ups that's now back at R959 but I’m hesitant now that I see they aren't using LifePo4 cells.

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[x7razor]

What quality of cells do the Elector units use, do they look decent, like they aren't scraping the barrel with the cheapest chinesium cells they can find?

I’m really keen to get the Elecstor 314Wh ups that's now back at R959 but I’m hesitant now that I see they aren't using LifePo4 cells.

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The is the one in the titan ups

 

[airborne]

What quality of cells do the Elector units use, do they look decent, like they aren't scraping the barrel with the cheapest chinesium cells they can find?

I’m really keen to get the Elecstor 314Wh ups that's now back at R959 but I’m hesitant now that I see they aren't using LifePo4 cells.

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And combine it with a 12V 65W PD car charger to have a portable laptop charger with huge capacity
Astrum Pro Go PD85 83W USB-C PD Dual USB Travel Car Charger

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Would the 12V output on these be quite efficient, ie just running through a boost/buck converter?

 

[airborne]

The is the one in the titan ups

They aren't branded but they don't look like total garbage, are those also ternary cells and if so how have they faired?
Does the general build quality and components in the Elecstor products look decent inside the units?

 

[x7razor]

And combine it with a 12V 65W PD car charger to have a portable laptop charger with huge capacity
Astrum Pro Go PD85 83W USB-C PD Dual USB Travel Car Charger

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Would the 12V output on these be quite efficient, ie just running through a boost/buck converter?

yes think they are rated for 10a on those core units

 

[x7razor]

They aren't branded but they don't look like total garbage, are those also tenary cells and if so how have they faired?
Does the general build quality and components in the Elecstor products look decent inside the units?

not tenary those lifepo4 cells is not high density. Cells like NMC are tenary cells. Well they still work i have put them in a battery box for someone and is still used its operantly on a charger and is used for led lights.

 

[airborne]

yes think they are rated for 10a on those core units

Correct I checked that now, 12v 10A, how efficient are DC to DC converters, far better than using the 220v AC output I'm assuming?

 

[airborne]

It's this dumb term "ternary" which has thrown me because I have never previously heard of it but it is just another way to describe a chemistry that is very common in 18650 li-ion cells , it's not some new tech and for instance it's the same chemistry that Samsung SDI uses to make many of their extremely high quality and widely used cells. So essentiality ternary = run of the mill 18650 chemistry. Granted there are other 18650 chemistries but "ternary" is one of the most widely used.

 

[x7razor]

Correct I checked that now, 12v 10A, how efficient are DC to DC converters, far better than using the 220v AC output I'm assuming?

dc converters is great less loss, less components and for efficiency some modules even claim up to 98% efficiency.

 

[airborne]

dc converters is great less loss, less components and for efficiency some modules even claim up to 98% efficiency.

98% is amazing.

 

[Rickster]

Doesn't look like I'm getting it today, hasn't updated since Monday.

 

[Lupus]

Thanks and a nice price to

Missed out

 

[x7razor]

Doesn't look like I'm getting it today, hasn't updated since Monday.



View attachment 1790916

Sure you will get it.

This happened to me twice already and then driver just rocked up at the door luckily there is always somebody at home. The one day they suddenly changed the date and time from 17:00 next day to before 19:00 1 day earlier.

My latest order for the 2 netogy units went ok.

 

[Dee96]

Hi all, looking for a UPS for a router and ONT. Both are 12V. Anything decent at around the R600 range?

 

[Rickster]

Sure you will get it.

This happened to me twice already and then driver just rocked up at the door luckily there is always somebody at home. The one day they suddenly changed the date and time from 17:00 next day to before 19:00 1 day earlier.

My latest order for the 2 netogy units went ok.
View attachment 1790917

I got it at 17:00

 

[x7razor]

Hi all, looking for a UPS for a router and ONT. Both are 12V. Anything decent at around the R600 range?

The below was on special with very good pricing this past week. Have a look at them might go on sale again. Prices was when they are on special.

R429
https://www.takealot.com/elecstor-m...wh-lifepo4-mini-ups-dual-port-us/PLID92690773

R359
https://www.takealot.com/elecstor-60w-lifepo4-mini-ups-with-poe-or-portable-powerbank/PLID92692237

R309
https://www.takealot.com/netogy-100w-dc-46wh-mini-ups-power-bank/PLID90006784

R599 - current price when i got one i paid R1499
Very good unit also Lifepo4 cells and has a option to add a 50watt solar panel.
https://www.takealot.com/gizzu-60w-69wh-21600mah-larger-battery-mini-poe-dc-ups/PLID92088192

 

[airborne]

Also the Gizzu 100W DC 46Wh Mini UPS Black for R468:

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[Dee96]

Also the Gizzu 100W DC 46Wh Mini UPS Black for R468:

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This looks similar to the Ratel I had so should be great

 

[x7razor]

This looks similar to the Ratel I had so should be great

Gizzu and Ratel just rebranded and all internals is the same. If you decide to get any ups go with a lifepo4 unit. Nothing wrong with the normal 18650 units. Lifepo4 units has a longer service life and its safer not that I heard anyone's dc ups burning or exploded yet with 18650 cells just runtime degraded.

Repaired a lot of ups's and they all have these Chinese branded cells well everything comes out of china but you do get cheap cells and good name brand cells.