We tested a DIY mini UPS for a Wi-Fi router

Parts list and possibly links to parts would make the article much more useful but thank you, good read.
 
netstrider said:
It depends on the manufacturer. Some brands, like ASUS, allow you to set the charge to a maximum of 60% or 80% which increases the lifespan of the battery.

I toggle between 60% and 80% depending whether I expect to be using my laptop out of the office on battery or not and had it on 80% for load shedding.

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Brilliant little app. Especially since nobody makes devices with removable batteries anymore. This should be standard across all manufacturers.
 
SubtleBeast said:
Brilliant little app. Especially since nobody makes devices with removable batteries anymore. This should be standard across all manufacturers.
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There are others that do the same, I think.
 
Exaelea said:
Yes its cheaper, but you forgot to add in the cost of tools, materials and time to make this. Not everyone has nearly everything lying around waiting to be used. This then far exceeds the prebuilt units cost.
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Cheaper to buy a car Battery, hook up your Router and your Laptop for many hrs of service. For the laptop, get yourself a spare power cable, the one between laptop supply and laptop, and hook this cable to the Car battery, all or most laptops will run off 12 Volts. My Dell uses a 19 Volt supply, but I connected 12 straight to it and have had many Hrs of pleasure before charging the Battery.
 
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zs5zkpottie said:
Cheaper to buy a car Battery, hook up your Router and your Laptop for many hrs of service. For the laptop, get yourself a spare power cable, the one between laptop supply and laptop, and hook this cable to the Car battery, all or most laptops will run off 12 Volts. My Dell uses a 19 Volt supply, but I connected 12 straight to it and have had many Hrs of pleasure before charging the Battery.
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When last did you buy a car battery. Depending on size, it get quite pricey. Secondly it not design for this. Maybe a 7h lithium battery would work out better?
 
zs5zkpottie said:
Cheaper to buy a car Battery, hook up your Router and your Laptop for many hrs of service. For the laptop, get yourself a spare power cable, the one between laptop supply and laptop, and hook this cable to the Car battery, all or most laptops will run off 12 Volts. My Dell uses a 19 Volt supply, but I connected 12 straight to it and have had many Hrs of pleasure before charging the Battery.
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That battery will last you max 1 month and it's dead ! Never mind f*in up your laptop.
 
SubtleBeast said:
Brilliant little app. Especially since nobody makes devices with removable batteries anymore. This should be standard across all manufacturers.
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I wonder if there is a 3rd party app that does this.
 
zs5zkpottie said:
Cheaper to buy a car Battery, hook up your Router and your Laptop for many hrs of service. For the laptop, get yourself a spare power cable, the one between laptop supply and laptop, and hook this cable to the Car battery, all or most laptops will run off 12 Volts. My Dell uses a 19 Volt supply, but I connected 12 straight to it and have had many Hrs of pleasure before charging the Battery.
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I've seen some kak advice on this forum before but wooooooooow.
 
SubtleBeast said:
Laptop batteries are very susceptible to overcharging so don't leave your device plugged in for too long after the battery's fully charged.
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That would indicate a defective design. Any laptop that continues charging the battery after it is fully charged is best not bought in the first place. If they can't get a simple charging circuit right it will undoubtedly contain numerous other serious design flaws.
 
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Exaelea said:
Yes its cheaper, but you forgot to add in the cost of tools, materials and time to make this. Not everyone has nearly everything lying around waiting to be used. This then far exceeds the prebuilt units cost.
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Also barely cheaper. A basic device to do the same thing can be bought for no more than R1000. You could probably save a lot more if you had the components on hand, then designed and built everything yourself though.
 
netstrider said:
It depends on the manufacturer. Some brands, like ASUS, allow you to set the charge to a maximum of 60% or 80% which increases the lifespan of the battery.

I toggle between 60% and 80% depending whether I expect to be using my laptop out of the office on battery or not and had it on 80% for load shedding.

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But the kind of defective laptop that was described, that is one that completely ignores the battery's state of charge, will just ignore these settings and continue charging well past 100%.

It is definitely the case that if you don't really need to use the battery then keeping it at a storage charge will extend it's life, but this is completely different to the myth that properly designed devices just keep charging the battery regardless of their state of charge.
 
Coming back to the original topic: I am very interested in the OP where Jan posted on a DIY UPS.
I have an ONT which runs off 12V and a router that runs off 24V. One UPS to support load shedding for both units will be a bonus. Has anyone tried this?
 
Matchless said:
Coming back to the original topic: I am very interested in the OP where Jan posted on a DIY UPS.
I have an ONT which runs off 12V and a router that runs off 24V. One UPS to support load shedding for both units will be a bonus. Has anyone tried this?
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The Gizzu with POE has 12v and 24v outputs. You may need to make or get an adaptor for POE to the 24v plug of your device.
 
noxibox said:
That would indicate a defective design. Any laptop that continues charging the battery after it is fully charged is best not bought in the first place. If they can't get a simple charging circuit right it will undoubtedly contain numerous other serious design flaws.
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SauRoNZA said:
Don’t buy **** laptops.
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Ok cool. Message received. Will never buy HP again.;)
 
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