Battery Back up for KOW

Equinix · Post by **Equinix** » Tue Dec 24, 2019 6:34 pm

Bumping up this to thread...

As we all know, the horrors of Rotating power cuts are upon us "soon"

I'm looking into powering 2 fans and a laptop on backup power.

What's the cheapest option for maybe 6hrs of emergency power?

Any recommendations on a supplier?

Kammekor · Post by **Kammekor** » Tue Dec 24, 2019 7:07 pm

Laptops have built-in backup power...... If it starts to fail consider a new laptop or a new battery. Latter quite hard to find in the KoW.

For the fans, buy some 12V fans and use a car battery.

Equinix · Post by **Equinix** » Tue Dec 24, 2019 9:46 pm

Kammekor wrote:Laptops have built-in backup power...... If it starts to fail consider a new laptop or a new battery. Latter quite hard to find in the KoW.

For the fans, buy some 12V fans and use a car battery.

I got one small battery powered fan but ideally would get one or two batteries for backup. Also want to power my router so I would be able to keep using the internet.

My laptops are two older model Lenovos and I'm not currently looking to upgrade to a new model.

How about a lithium ion battery used for solar power?

pczz · Post by **pczz** » Wed Dec 25, 2019 1:33 am

Ravensnest wrote: ↑Mon Jun 10, 2019 6:50 am
beaker wrote: ↑Mon Jun 10, 2019 5:58 am most laptops power supplies/battery chargers are good for a range of voltages.
i.e. 100v-240v
Check the power requirements on your router.
What if the IP provider goes down too when the power goes off ?
Cheaper to buy a battery and inverter/charger than an emergency power supply.
Hopefully his phone can create a hotspot, problem solved.

But then he doesnt need battery backup for the router, only the laptop

jovial fucher · Post by **jovial fucher** » Wed Dec 25, 2019 2:03 am

timmydownawell wrote: ↑Mon Jun 10, 2019 12:46 pm
Brody wrote: ↑Mon Jun 10, 2019 11:21 am
timmydownawell wrote: ↑Mon Jun 10, 2019 11:15 am A $30 Prolink UPS might be all you need for any random cuts under an hour.
That's what I've been using. Work like a champ.
Mine died after 2 years but a replacement battery was only $15 and it was easy to replace.

I asked in the load shedding thread why they bothered to put an on/off switch on UPSs... but I soon realised if the power went out for four hours while I was out of the house, it was no point in having my wifi running when I wasn't here, so starting turning it off when I went out, so if I returned to no power I would still have a full charge.

Did you change the type of battery that you used? I hear there is a better battery and I need to replace the ones on my UPS.

Equinix · Post by **Equinix** » Wed Dec 25, 2019 7:04 am

pczz wrote:
Ravensnest wrote: ↑Mon Jun 10, 2019 6:50 am
beaker wrote: ↑Mon Jun 10, 2019 5:58 am most laptops power supplies/battery chargers are good for a range of voltages.
i.e. 100v-240v
Check the power requirements on your router.
What if the IP provider goes down too when the power goes off ?
Cheaper to buy a battery and inverter/charger than an emergency power supply.
Hopefully his phone can create a hotspot, problem solved.
But then he doesnt need battery backup for the router, only the laptop

I've got one of those battery powered Hotspot routers with cellcard and use smart on my phone.

Unfortunately, last time during the rotating power cuts (or other power cuts for that matter) 4g becomes slow af when there is a power cut.

timmydownawell · Post by **timmydownawell** » Wed Dec 25, 2019 7:15 am

jovial fucher wrote: ↑Wed Dec 25, 2019 2:03 am
timmydownawell wrote: ↑Mon Jun 10, 2019 12:46 pm
Brody wrote: ↑Mon Jun 10, 2019 11:21 am
timmydownawell wrote: ↑Mon Jun 10, 2019 11:15 am A $30 Prolink UPS might be all you need for any random cuts under an hour.
That's what I've been using. Work like a champ.
Mine died after 2 years but a replacement battery was only $15 and it was easy to replace.

I asked in the load shedding thread why they bothered to put an on/off switch on UPSs... but I soon realised if the power went out for four hours while I was out of the house, it was no point in having my wifi running when I wasn't here, so starting turning it off when I went out, so if I returned to no power I would still have a full charge.
Did you change the type of battery that you used? I hear there is a better battery and I need to replace the ones on my UPS.

No, I used the same type as the original.

There are videos on Youtube showing how you can connect a car battery instead... but if you read the comments there are lots of people saying that it could be dangerous because the heat generated by the extended time it takes to charge up the battery could cause a fire, and the guy just twists the wires together with some tape rather than soldering them etc. Can probably be done safely if it's done right though.

pczz · Post by **pczz** » Wed Dec 25, 2019 7:53 pm

Equinix wrote: ↑Wed Dec 25, 2019 7:04 am
pczz wrote:
Ravensnest wrote: ↑Mon Jun 10, 2019 6:50 am
beaker wrote: ↑Mon Jun 10, 2019 5:58 am most laptops power supplies/battery chargers are good for a range of voltages.
i.e. 100v-240v
Check the power requirements on your router.
What if the IP provider goes down too when the power goes off ?
Cheaper to buy a battery and inverter/charger than an emergency power supply.
Hopefully his phone can create a hotspot, problem solved.
But then he doesnt need battery backup for the router, only the laptop
I've got one of those battery powered Hotspot routers with cellcard and use smart on my phone.

Unfortunately, last time during the rotating power cuts (or other power cuts for that matter) 4g becomes slow af when there is a power cut.

Because when there is a powercut everyone switches to using 4g

Equinix · Post by **Equinix** » Wed Dec 25, 2019 8:10 pm

pczz wrote:
Equinix wrote: ↑Wed Dec 25, 2019 7:04 am
pczz wrote:
Ravensnest wrote: ↑Mon Jun 10, 2019 6:50 am
beaker wrote: ↑Mon Jun 10, 2019 5:58 am most laptops power supplies/battery chargers are good for a range of voltages.
i.e. 100v-240v
Check the power requirements on your router.
What if the IP provider goes down too when the power goes off ?
Cheaper to buy a battery and inverter/charger than an emergency power supply.
Hopefully his phone can create a hotspot, problem solved.
But then he doesnt need battery backup for the router, only the laptop
I've got one of those battery powered Hotspot routers with cellcard and use smart on my phone.

Unfortunately, last time during the rotating power cuts (or other power cuts for that matter) 4g becomes slow af when there is a power cut.
Because when there is a powercut everyone switches to using 4g

Lolz. Why the

Just because I didn't mention that in my comment, didn't mean I didn't know that

Anyone knows a company that sells batteries, inverters and other accessories that are needed?

beaker · Post by **beaker** » Wed Dec 25, 2019 8:19 pm

Most 12v DC to 220v AC inverters are also 12v battery chargers. They are easy to find here.

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