Powering LED TV during load shedding

[Edwe]

Hi all

What is the cheapest safe solution to power a 44W (typical) / 100W (max) Samsung LED TV during load shedding and to protect against surges when the power comes back on?

I also need a secondary power solution for my router and cordless phone base station (far from TV).

I'm looking for something that will last me about 90min at a time until either ESKOM gets their ducks in a row, or the lights go off for good.

 

[akescpt]

do a search. mountain of material on here already.

 

[Edwe]

do a search. mountain of material on here already.

I did already (would not have created a new thread otherwise). There are similar threads, but all have died without (what I consider) a satisfactory, specific answer. I am actually hoping for something along the lines of "I bought inverter X and battery Y at store Z and it keeps my TV powered for T minutes".

 

[Shard]

I did already (would not have created a new thread otherwise). There are similar threads, but all have died without (what I consider) a satisfactory, specific answer. I am actually hoping for something along the lines of "I bought inverter X and battery Y at store Z and it keeps my TV powered for T minutes".

Ye, problem is there's lots of talk about it, but no-one really has a clue in the definitive SA context. Only comprehensive guides I've seen are people that imported components from China etc.

Myself and a couple of mates are busy putting together a solution to handle 200W for 3 hours using parts from SA suppliers, I'll post the guide if it works.

 

[Edwe]

Ye, problem is there's lots of talk about it, but no-one really has a clue in the definitive SA context. Only comprehensive guides I've seen are people that imported components from China etc.

Myself and a couple of mates are busy putting together a solution to handle 200W for 3 hours using parts from SA suppliers, I'll post the guide if it works.

Thanks, would really appreciate this. What kind of budget are you looking at, more or less?

 

[Shard]

Thanks, would really appreciate this. What kind of budget are you looking at, more or less?

4K

Biggest problem with TV is the inverter. Modified Sinewave inverters are cheap but cause interference (Snow/Static). But we're testing the modified first.

That budget probably doubles if you have to go to Pure Sinewave unfortunately.

 

[Edwe]

4K

Biggest problem with TV is the inverter. Modified Sinewave inverters are cheap but cause interference (Snow/Static). But we're testing the modified first.

That budget probably doubles if you have to go to Pure Sinewave unfortunately.

From some casual googling, my initial impression is that it's going to cost at least R10k to run my TV off a pure sine wave inverter for any significant amount of time.

 

[TheMightyQuinn]

4K

Biggest problem with TV is the inverter. Modified Sinewave inverters are cheap but cause interference (Snow/Static). But we're testing the modified first.

That budget probably doubles if you have to go to Pure Sinewave unfortunately.

Most of the newest modified sinewave converters do not cause any visual interference like snow/static anymore. It does however cause resonance in the power unit of the TV, leading to a buzzing sound. I normally use a wireless headphone connected to my amp, so this does not bother me. Without the headset the buzz is audible, but it does not take long before you do "not hear it anymore".

I have a 1000W Modified Sinewave Inverter and a 100Ah deep cycle battery and it runs my 48" plasma, WD TV Live, DSTV decoder and Amp for 3 hours easily.

Also had to buy a charger, electrical cables etc. All in: R 4 500

I turn everything off few minutes before load shedding starts. Plug my multi plug with all my media stuff into lead going to inverter and turn everything on again. When power comes on I turn it off and immediately put the battery on charge.

Hope this helps.

 

[GreyBush]

Most of the newest modified sinewave converters do not cause any visual interference like snow/static anymore. It does however cause resonance in the power unit of the TV, leading to a buzzing sound. I normally use a wireless headphone connected to my amp, so this does not bother me. Without the headset the buzz is audible, but it does not take long before you do "not hear it anymore".

I have a 1000W Modified Sinewave Inverter and a 100Ah deep cycle battery and it runs my 48" plasma, WD TV Live, DSTV decoder and Amp for 3 hours easily.

Also had to buy a charger, electrical cables etc. All in: R 4 500

I turn everything off few minutes before load shedding starts. Plug my multi plug with all my media stuff into lead going to inverter and turn everything on again. When power comes on I turn it off and immediately put the battery on charge.

Hope this helps.

Helped me thanks.

 

[shogun]

Hi all

What is the cheapest safe solution to power a 44W (typical) / 100W (max) Samsung LED TV during load shedding and to protect against surges when the power comes back on?

I also need a secondary power solution for my router and cordless phone base station (far from TV).

I'm looking for something that will last me about 90min at a time until either ESKOM gets their ducks in a row, or the lights go off for good.

Last night I powered a laptop, 8w lamp and 32" TV for 70min during load shedding using the 2000VA RCT UPS from takealot. The system was running at 8% load. This week I want to modify it by swapping out the batteries for larger ones. Should easy breeze through load shedding with that. I doubt you'd have to spend 10K.

 

[Edwe]

Most of the newest modified sinewave converters do not cause any visual interference like snow/static anymore. It does however cause resonance in the power unit of the TV, leading to a buzzing sound. I normally use a wireless headphone connected to my amp, so this does not bother me. Without the headset the buzz is audible, but it does not take long before you do "not hear it anymore".

I have a 1000W Modified Sinewave Inverter and a 100Ah deep cycle battery and it runs my 48" plasma, WD TV Live, DSTV decoder and Amp for 3 hours easily.

Also had to buy a charger, electrical cables etc. All in: R 4 500

I turn everything off few minutes before load shedding starts. Plug my multi plug with all my media stuff into lead going to inverter and turn everything on again. When power comes on I turn it off and immediately put the battery on charge.

Hope this helps.

Last night I powered a laptop, 8w lamp and 32" TV for 70min during load shedding using the 2000VA RCT UPS from takealot. The system was running at 8% load. This week I want to modify it by swapping out the batteries for larger ones. Should easy breeze through load shedding with that. I doubt you'd have to spend 10K.

Thanks, this is exactly the sort of info I was looking for. May I ask where you bought your equipment, MightyQuin?

 

[Shard]

Last night I powered a laptop, 8w lamp and 32" TV for 70min during load shedding using the 2000VA RCT UPS from takealot. The system was running at 8% load. This week I want to modify it by swapping out the batteries for larger ones. Should easy breeze through load shedding with that. I doubt you'd have to spend 10K.

Was it easy to swap out the batteries for this? I've been trying to find a standard UPS that you can connect an external battery to in SA, but no luck.

My calcs are to run a 46" LED, I know the system that can run a 46" for 3 hours can also run a 22" for 9-10. So the scaling is not linear.

 

[Shard]

Most of the newest modified sinewave converters do not cause any visual interference like snow/static anymore. It does however cause resonance in the power unit of the TV, leading to a buzzing sound. I normally use a wireless headphone connected to my amp, so this does not bother me. Without the headset the buzz is audible, but it does not take long before you do "not hear it anymore".

I have a 1000W Modified Sinewave Inverter and a 100Ah deep cycle battery and it runs my 48" plasma, WD TV Live, DSTV decoder and Amp for 3 hours easily.

Also had to buy a charger, electrical cables etc. All in: R 4 500

I turn everything off few minutes before load shedding starts. Plug my multi plug with all my media stuff into lead going to inverter and turn everything on again. When power comes on I turn it off and immediately put the battery on charge.

Hope this helps.

Thanks, what Deep Cycle battery and inverter brands are you using?

Looking at a Deltec Varta 105 Ah battery, not sure for inverter.

Will get an 8A charger, which should enough to charge in 20 hours by the next loadshed (Stage 2 and 3 becomes more tricky though lol).

 

[shogun]

Was it easy to swap out the batteries for this? I've been trying to find a standard UPS that you can connect an external battery to in SA, but no luck.

My calcs are to run a 46" LED, I know the system that can run a 46" for 3 hours can also run a 22" for 9-10. So the scaling is not linear.

Last night I powered a laptop, 8w lamp and 32" TV for 70min during load shedding using the 2000VA RCT UPS from takealot. The system was running at 8% load. This week I want to modify it by swapping out the batteries for larger ones. Should easy breeze through load shedding with that. I doubt you'd have to spend 10K.

Haven't done it yet... but there is a very detailed post on this forum on how to do exactly that with exactly this UPS. Going to follow those instructions, but looks super simple.

 

[Shard]

Haven't done it yet... but there is a very detailed post on this forum on how to do exactly that with exactly this UPS. Going to follow those instructions, but looks super simple.

One thing I realised, the charger in that recovers 90% of charge of the 2x7Ah batteries in 4-6 hours, which means its only 2A or 3A. It would never charge a 105Ah in time - only downside.

 

[koeksGHT]

Get something like this

http://www.cps-africa.com/long-life.htm

 

[Shard]

Get something like this

http://www.cps-africa.com/long-life.htm

If it weren't 10K for one of those i would, but essentially they buying all the parts I am and rolling them up into a custom metal container on wheels and charging a profit. If you can get the same for 4K, its less clean but I am happy for a less clean solution on a grudge purchase if it saves me 6K.

 

[koeksGHT]

If it weren't 10K for one of those i would, but essentially they buying all the parts I am and rolling them up into a custom metal container on wheels and charging a profit. If you can get the same for 4K, its less clean but I am happy for a less clean solution on a grudge purchase if it saves me 6K.

Yea it is custom made so there is a bit of profit.

It's 2x 102AH battries and an inverter for R7k.

You can make your own if you are that jew

 

[Shard]

Yea it is custom made so there is a bit of profit.

It's 2x 102AH battries and an inverter for R7k.

You can make your own if you are that jew

lol, ok no, ones I've seen are more than 7K and only 1x105Ah Battery

2x102Ah makes it far more worth it.

Which model have you got? I see there are 1x100Ah Battery ones, that actually what I need. Have you got access to the prices?

 

[koeksGHT]

lol, ok no, ones I've seen are more than 7K and only 1x105Ah Battery

2x102Ah makes it far more worth it.

Which model have you got? I see there are 1x100Ah Battery ones, that actually what I need. Have you got access to the prices?

Don't quote me on 2 batteries. The smaller one looks to have room for one battery.

The ones on site are different. You can email them for a quote loveness@cps-africa.com

Got about 4 hours in evening after it was running whole day (18w for internet only) and then 1x50" tv, 2x 23" monitors and desktop (350w total). Get over 6-8 hours with computer and 2x screens.