How to increase UPS backup time - WILL THE INVERTER OVERHEAT with larger battery ?

[@charliebrown238]

I done a very similar thing, i bought a cheap UPS $100, and just wired a N200 (200 AH) battery to it ... So all up it cost me $250 .... you'd be hard pressed to find a 200AH UPS back up for that price. It can only handle 500 watts of draw, but that's fine for what I need it for. Cheers for the video, im glad im not the only one tweaking this type of stuff :)

[@MarkoRadulovic]

Thanks! Be careful for overheating, measure the transformer temperature as shown in video. 500W is a LOT for longer draw from UPS. I get overheating for any power over 50W

[@MarkoRadulovic]

Again, the point is that if you draw all 500W, it wont last longer than 20 seconds, irrespective of battery capacity. It will stop because of overheating, not empty battery. For longer use of power you can only go up to 10-20% of UPS capacity

[@CaptainScorpio24]

@@MarkoRadulovic how about apc bx1100c . ? what the max limit . it originally cums wd 12v 7ah . there is also 9ah battery set wd same physical dimension

[@javaman2883]

Very important to keep in mind the systems are designed and sized thinking of heat output too. When the system rated at 500 watts is putting out 400 watts, the original battery capacity only allows for it to run like 5 minutes (or less). A larger battery would have longer run time, but the unit may overheat and shutdown at 7 minutes. If you run at half rated current, so 250watts output from a 500watt unit, even with a huge battery you should NOT expect an hour of run time without additional cooling, such as a 12v fan pushing air through the UPS. If you are wanting hours of run time, stick to 10-25% of rated current. IE 500watt unit can supply 50 to 125watts for hours. Network equipment is a good use case.

[@annestywest7488]

I bought a Cyberpower cp1500pfclcda 1500va 1000w sine wave battery back-up system it has 2 9AH batteries 24v so I added 2 100AH batteries 24v but it can't see that I added more AH to it and at 207w it only runs 44 minutes then shuts off but the batteries are still at 24.5v when it cuts off. Can I hack the system to change the settings?

[@innovativeabhinav1032]

Thank you soooo much brother you solved confusion ❤️❤️❤️❤️❤️❤️

[@MarkoRadulovic]

Cheers,!

[@imdeaded]

Thanks. I'm going to make one.

[@kiritowallace2plays]

This is perfect for blackouts like here in my town just need power for a couple of hours as for running a tv just change it for a car battery you get 2 to 3 hours depending on how old the tv is and it size I saw a video a guy power a tv and a xbox with a car battery for 2 hours

[@MarkoRadulovic]

Mind it that car battery is not made for deep discharge and therefore cannot last long for this purpose. So you need a.deep cycle.battery which is unfortunately more expensive. Car battery is only made for short discharges, like to start a motor and then its immediately recharged again as soon as the motor is on.

[@kiritowallace2plays]

@@MarkoRadulovic well it's not for that purpose but it's not like I would use all the time just once in a while car battery it's good not for going off grind just for a couple of hours and once in a while deep cicle ? Who cares if it's only for a one time use

[@kiritowallace2plays]

@@MarkoRadulovic not everyone goes high tech on solat just made do with what you have i only spend 30 dollars of electricity bill in my country not couple hundred or thousands like in us 🤣🤣🤣

[@GenaEnSamIAm]

Awesome. Thank you !

[@MarkoRadulovic]

Cheers!

[@PrakobChannel_01]

good clip friend

[@MarkoRadulovic]

Cheers!

[@tidalminds7381]

May I know why lead acid battery is not suitable for this set up?

[@MarkoRadulovic]

Because such batteries can be emptied only until 50% charge. If you empty them further they become forever unusable, thrown in the bin. So, what you need are DEEP CYCLE batteries which can be emptied deeper, under 50%, without getting damaged. A bit like phone batteries.

[@sharukhmatekuki5830]

Nice 👍🏻👍🏻👍🏻 🇮🇳 || Kuki 12|03|2022

[@shannon3322]

My findings is that 3 times the amount of the recommended value of the battery should be maximum to be safe since the lead acid battery isn't 100 % value of efficiency but around 70-85%

[@MarkoRadulovic]

The capacity of a battery does not matter for.safety, only the power drawn matters, please read the text under the video. Anyway, if you overload the system, it willl shut down due to overheating, so no danger there. Do not use acid batteries, only deep cycle

[@shannon3322]

@@MarkoRadulovic just stepping up the ups type batter from 7ah to 18ah should be fine why you don't recommend lead acid ?

[@nikosadie]

All 4 my UPS devices each have 2 x 12v lead-acid batteries (in series). These are normal 7Ah batteries and it keeps the PC on for just long enough to save and shut down. On one of my UPS devices, I only run my Wifi and it runs for at least 3 hours, so that is ok with the low load. The problem with these small UPS's is that the batteries do not last very long. Usually, after a year I have to replace them. So I wonder if these do not get over-discharged. (I have about 16 old batteries that do not hold a charge). Will a bigger battery help? I got an intelligent charger and I charge every battery with it every 6 months and they seem to last longer now. The UPS devices seem to be OK and never give problems but I wonder if they manage the battery power properly.

[@MarkoRadulovic]

It depends how often your UPSs are in actual use, that is, how often do you have power outages? If you do not have power outages - than batteries never get discharged and any battery problem exactly as you say would go down to poor charging management by the UPS. Increasing battery capacity would not help with battery longevity. Actually, one year is not such a bad usage period for a lead acid battery type. If you have 4 UPSs, for you it may be better to install a solar system type of supply, with or without solar panels. You need an inverter with about 2000w power and a 100Ah deep cycle battery and you can run your desktops faaaar longer. If you get an even bigger battery and say 3000W inverter you could also run lights and smaller appliances in the whole house, so much more useful than several UPSs

[@chieftain8638]

But series conection makes 24 v not 12 v

[@javaman2883]

The charging circuit in these consumer UPS units..suck. They are fine for maintaining a full charge, usually 13.2volts. They do not have the output to charge the battery back up properly after an outage. It might be able to trickle charge up to 80% eventually. But there is no bulk charge cycle, or saturation charge (13.6v) cycles. A good 3 stage charger would greatly help the lifetime and the capacity of external batteries. However, I'm not sure what problems would be cause by hooking up another charger when the UPS is trying to trickle charge.

[@topg2820]

@@javaman2883 basically the (distilled) water in the batteries dries up, if the batteries are in working condition you just have to top them up with distilled water and they work again, check videos on KZbin many do it

[@Dr_Mario2007]

AGM batteries are kind of best for the UPS, as like you mentioned, UPS requires deep cycle Lead-acid batteries. You could even run the whole UPS off of Optima Yellow Top AGM if you truly wanted to, with the bonus of longer battery runtime with up to 50 - 100 Amps hour capacity. Or if you're an electronics whiz with the experience of safely handling the Lithium-ion cells, I'd go down this route personally, it's a lot more efficient than Lead-acid batteries - you need to modify the UPS' battery charger somewhat to fit Lithium-ion battery pack in.

[@MarkoRadulovic]

I agree, lithium-ion batteries are the best option. But because charging stands in the way, it would be great if you could explain in detail how exactly should the UPS charger be tweaked for lithium batteries.

[@Dr_Mario2007]

@@MarkoRadulovic I don't have exact information since chargers in the UPSes varies widely - if the battery charger is of switchmode power supply flavor, check the datasheet on the power supply chopper transistor driver and then identify the exact potentiometer until you can change to the onboard BMS' charging voltage so the battery can then accept the charge. I strongly recommend to have BMS (battery management system) for obvious safety reasons, and so it guarantees that the batteries are balanced so they last much longer. The chargers are normally set to 13 to 14 Volts DC for Lead-acid batteries - I'd go with 12 Volts DC Lithium Iron Phosphate battery pack as it's fairly close to the car alternator voltage, about 14.6 Volts DC so we're not pushing the charger too hard.

[@ionburciu5322]

@@MarkoRadulovic SORII NO SPIK INGLIȘ,,,,MERGEȚI PE INCARCARE SOLARĂ,,,CONTROLER PENTRU BATERII LI-ION ,,ȘI TOTUL OK..

[@andyjack2368]

THAT VERY NICE COOL BUT PUT COOLING FAN IN USP FOR SURE I HAVE ONE I HAVE COOLING FAN ON IT AND I HAVE 3000 WATTS PURE SINE WAVE 48V 120V 60Hz

[@holako80]

So basically if I have 380 watt UPS then I can draw about 75 watt safely from it for a good amount of time?

[@MarkoRadulovic]

Yep, thats it!

[@pantherat2323]

I have a 2200v UPS, if i improve the airflow can it serve me for atleast 8hours?

[@MarkoRadulovic]

No, definitely not, it will overheat if you use over 100W very quickly. So, you need to buy a sinusoid inverter which for 2kW would cost at least £300, but that is a safe solution. You van find inverters with a UPS function easily on Amazon

[@rekusamare2219]

Hi. Did you buy an external charger to charge the battery or it is still connected to the original circuit to charge it?

[@MarkoRadulovic]

Original charger can charge much bigger battery without problem, it only slower

[@J.Squared.]

Is it possible to run a desktop pc with monitor using this type of setup ? Desktop SMPS rated at 400 watts.

[@MarkoRadulovic]

I did a test, shown on a link below, with a 380W UPS which is similar to yours and increasing loads from 100W, to 200W and 300W. As soon as 300W were reached, the power stopped due to overheating. I assume that a desktop PC + monitor also add up to about 300W. The solution is to buy a more powerful UPS, about 1000W and a deep cycle battery of 50+Ah, best 100Ah. Building a powerful UPS setup is thus quite expensive, which is why I limited my UPS extension to surveillance cameras which use a maximum of 7W each and LED lights. Here is the link to the test kzbin.info/www/bejne/sHrUqX2EbMaBiZY

[@J.Squared.]

@@MarkoRadulovic Thanks for the reply.

[@MarkoRadulovic]

Generally, UPS setups are made to endure 50% of their rated power for only several minutes. they can endure small load, at about 10% of their rating for a very long time. But if you want to power several hundred watts for a long time it may be best to buy solar setups (not necessarily with solar panels) just a 200AH battery and a transformer of 1000-2000W sinus and this could power a desktop for a hole day. But this is even more expensive than UPS

[@raffy3304]

@@MarkoRadulovic thanks for this. have seen a lot of stupid videos on youtube

[@tddrivers]

@@MarkoRadulovic What about adding a small fan to the electronics for the overheating prevention?

[@vile8418]

i have a 2000 va/1200 w ups with built in exhaust fan, how much would be safe to draw from it with huge battery

[@MarkoRadulovic]

the rough guide is 10% of the nominally rated power, in your case 120W. But as other specs may differ it is always best to check whether it overheats at 10 and 20% by using a laser thermometer, these are now very cheap. At 30% it might already automatically shut down in a short time

[@mahdyfouad]

just bought my first ups. but why transformer is always hot even with no load? any idea?

[@MarkoRadulovic]

Due to hysteresis, copper losses etc... transformers use energy and generatebheat even without any load. If temparature of the core is above 50C, that would be a reason for concern, up to approx. 50C can be considered normal

[@mahdyfouad]

@@MarkoRadulovic it is 40C or less. but all that heat all the day that is a lot of power losses in my opinion.

[@abinmathew5624]

Tried ths, worked, but ups gettng turned off and on when no electricity is their... Why s ths happeng?

[@MarkoRadulovic]

Could it be that you are simply overloading and overheating your system? I recommended in this video that for a UPS rated at 380W one should not attach consumers with combined power exceeding 50W.. That is, for smooth operation system should not be loaded over 15%, 20% max.

[@MarkoRadulovic]

This shows UPS function with increased load. Backup time is reduced disproportionally, overheating, then UPS simply stops because of overload/overheating. kzbin.info/www/bejne/sHrUqX2EbMaBiZY

[@deraid712]

It will not charge fully, its 0.7a charger in ups and needs to be 2.7a in order to charge 27a battery

[@MarkoRadulovic]

I mentioned in several responses here, oversizing a UPS is an improvisation. Electricity can be properly provided only by separate a charger controller and an inverter

[@johnstephengrajo3785]

does it need thicker wires?replacing higher Ah is longer time charging

[@MarkoRadulovic]

Well, no need for thicker wires, but if you really want to adjust to 24/7 power supply it is best to buy solar battery charger and inverter for solar systems and ditch the UPS

[@MuslumBerdibek]

Sure it will work because you used only 20W. Your capacity was 600 VA. If you want to test correctly need more power to use. Then check temperature.

[@MarkoRadulovic]

It works under the shown conditions, not with much more power. That is the point and the reault is clearly noted: DO NOT USE MUCH OVER 20% RATED UPS POWER FOR LONGER USE

[@wywlf6912]

@@MarkoRadulovic 20% load? jfc thats pretty abysmal

[@CeceliPS3]

So what do I need to do in order to power a gaming PC that pulls up to 700W and make it run up to 1 hour? Also, what's the deal with this overheating if the wattage is a high number? Idk sht about this subject, but my e-bike has an engine that pulls 500W and I run for hours just fine without overheating and melting or exploding between my legs... LOL

[@MarkoRadulovic]

For that, it is best to entirely give up the UPS idea and buy a deep cycle 200Ah battery and a 2000W inverter. This 200Ah will approximately be only half- drained in an hour but even deep cycle batteries should not be drained deeper, to ensure optimal usage life

[@CeceliPS3]

@@MarkoRadulovic Thank you for this info that I couldn't have found myself anywhere!! With these key words I already found some videos. In fact, one of them of a really smart guy who happens to live in a 'favela' hooked up a inverter and a huge battery to power his entire kitchen when the energy goes out :P

[@mhexbalmora7799]

Some of the UPS it will run only for a certain time or just only for a 5 minutes then it will beep for cutt off. How to reset the timer, for continues operation as an off grid inverter? Thanks

[@MarkoRadulovic]

There isnt any timer, a battery limits the time, so if you put a bigger battery - the time will extend by itself. The important point is that the power of your devices should not be over about 25 percent of the rated power of UPS, otherwise the UPS will stop due to overheating, irrespective of the battery

[@mhexbalmora7799]

Thanks Sir...

[@CatalinTabirca]

Some ups have no load (or low load) auto power off after 5-15 min. Some have a jumper or a resistor that u need to remove

[@lahiru196]

@@CatalinTabirca how to indentify that

[@abhirammn4583]

A resistor named R15 or in pcb a resistor number is written and mentioned that NO GRN you should remove that specified number of resistor.

[@sharithstembo2062]

1. is it possible to Run A Gaming PC & a Fan ? Will it be overloded there is Display too... 2. When connected a car battery to UPS it will take longer time to charge is there a way to speed up the charging process and balance the heat

[@MarkoRadulovic]

For any load larger than 100W, you need to buy components for.a.solar system: invertor, battery charger etc.. Cannot supply a desktop with UPS for longer than several minutes, irrespective of battery size, please read the text in the video and below video

[@MarkoRadulovic]

You cannot connect a car battery, only a deep cycle battery. Please read the text and watch the video carefully

[@sharithstembo2062]

@@MarkoRadulovic yeah I mean the car battery that doesn't have liquid acid.... I think there called dry car battery or something

[@sharithstembo2062]

@@MarkoRadulovic but my original ups keep the PC on for half an hour

[@sumeetgundawar2978]

26 ampere 12 volt battery is installed then what needs to be taken care of charging time? It has been ten days since the battery fitting was successful running ups continew

[@MarkoRadulovic]

I did not quite understand the question, but the UPS should charge a battery automatically, could be that this bigger battery wull not be charged 100%, but as mentioned previously, this intervention is an improvisation

[@teteahauzel6153]

My ups only goes in backup but i replace battery 1 month ago

[@MarkoRadulovic]

You did not mention the battery capacity

[@teteahauzel6153]

@@MarkoRadulovic 250v 40A that's all I know

[@shanurhaiderabir5446]

Will it be same in case of 120ah battery with 650va ups?

[@MarkoRadulovic]

Battery size is irrelevant for overheating, but if the declared power is say 650W, I would estimate that you can achieve a constant draw of about 100W without overheating

[@MarkoRadulovic]

So your 650VA are about 520W, I would say then you can constantly draw approximately 90W of power nonstop without overheating and UPS shutdown

[@Yorchreload3d]

Mayorr chapucería

[@MarkoRadulovic]

Surely you are right, but that is exactly how it was presented, as improvisation, for those who need it and.many do need improvisation. It also works perfectly and it is safe.

[@DrZipZwan]

Thx you your tests are very nice!! I guess the discharging part is fine. I means supplying the device in Power AC outage. Then comes the charging part of a larger Amps battery. I doubt that charging circuitry of a standard PC UPS can handle the amount of Amps required by those large battery. What gona happen?? the batt will reach 13.8v-14v, without being properly full Amps charged. I saw other place, they combined an external Charger to feed the battery and rely on the inverter of the UPS to Power the device. That combo seems to do the job ))

[@MarkoRadulovic]

Thanks Zip, charging is not a problem, it only takes longer with a bigger battery, while UPS does not overheat at all. Discharging is a challenge as loads higher than 15 percent of declared maximum UPS load already start to heat the UPS and by 70 it turns off

[@DrZipZwan]

@@MarkoRadulovic I guess I am gona to try it again. Last time time I tried to add a bigger battery , it did not go very well. I mean not much better time. Maybe because it was an old car battery, that was no more able to start the engine of my car, so I gave it a shot. The thing is I dont want to buy a new battery, and then fail. I know car battery is no choice!! They are not deep cycle battery... About the heating, always a good choice to add a small PC fan ))

[@MarkoRadulovic]

If you need a longer-term (from 20 minutes up to several hours+) supply for a load of over 50W, my strong recommendation would be to buy components used in solar systems - these are in principle similar to UPS, but made for long supply of higher loads. You need to buy a battery charge controller and an 12V-220V inverter (1000W+). That might be a bit more expensive, but wont burn the house down. Using fans to cool UPS might work but over long term, the chance of burning down the house down is very high. Playing with electricity sooner or later - ends in disaster

[@jerinthomas6207]

and is maximum how much Ah battery we can use like this 27 is the maximum or any particular limit is there or not

[@MarkoRadulovic]

No, the limit is not for the battery but the power that you draw fro your UPS. You can use any battery 100Ah, 200Ah, any. But. UPS is made to supply power for only several minutes, as it quickly overheats and shuts down. In this video I explain a workaround of using very LOW power for hours. But if you need more than approx. 50W power then you must buy components for a solar system that are made for constant supply of larger power. You need an inverter from 12V to 220V, they go up to 3KW and need a battery charger. Also, you cannot use a car battery, but a deep cycle battery because car battery is also made for very short power supply, just to start the car. If it empties under 50% it cannot be used anymore, while deep cycle battery can discharge deepy and be re-used. With solar components you do not have solar panels, but charge from the grid, all else is the same

[@logicth1876]

I have a 800 va ups (480 watt) and 60 Ah battery. Can you tell me how much load is safe for that?

[@MarkoRadulovic]

50W will work for.sure for longer supply, maybe even 100W. As an orientation, you can either monitor overheating with a thermometer as in tgis video; or just see at what point UPS automatically turns off due to overheating

[@logicth1876]

@@MarkoRadulovic I'm running it with 110-130 watt load. Though it is not overheating, I added a mobo cooler fan on top of that. It takes a lot of time to charge the battery. Can I increase charging speed without adding an external charger? Any tips or tricks??

[@Arjama29]

Hello sir, I have contacted UPS with 35ah Amron car battery. I have checked that 35ah full battery provided approximately 4hrs backup for 200 watts load. But I am using my laptop with wifi during backup time UPS automatically turned off after 5 minutes of backup instead of long time. If turned on again then also turned off after 5 minutes. It's quite difficult to use please give me a solution. Thanks in advance.

[@MarkoRadulovic]

UPS is made to supply power for only several minutes, as it quickly overheats and shuts down. In this video I explain a workaround of using very LOW power for hours. But if you need more than approx. 50W power then you must buy components for a solar system that are actually made for constant supply of larger power. You need an inverter from 12V to 220V, they go up to 3KW and need a battery charger. Also, you cannot use a car battery, but a deep cycle battery because car battery is also made for very short power supply, just to start the car. If it empties under 50% it cannot be charged again, while deep cycle battery can discharge deeply and be re-used. With solar components you do not need solar panels, but charge from the grid, all else is the same. You can power the whole house, the battery capacity is the only limit. But inverters with higher power, over 1kW, are expensive, of course

[@jerinthomas6207]

hi, i am doing work at home now, suppose if i want to get my lap top usage and a wifi doggle upto 8 hr ..is it possible to do like this ...without overheating isses...plz reply

[@MarkoRadulovic]

UPS is made to supply power for only several minutes, as it quickly overheats and shuts down. In this video I explain a workaround of using very LOW power for hours. But if you need more than approx. 50W power then you must buy components for a solar system that are made for constant supply of larger power. You need an inverter from 12V to 220V, they go up to 3KW and need a battery charger. Also, you cannot use a car battery, but a deep cycle battery because car battery is also made for very short power supply, just to start the car. If it empties under 50% it cannot be used anymore, while deep cycle battery can discharge deepy and be re-used. With solar components you do not have solar panels, but charge from the grid, all else is the same

[@soniya081]

Does it charge fully... as amp is less for the ups

[@MarkoRadulovic]

I don't think amps have any influence in battery charge control. To what I know, batteries are charged according to voltage which is the same for small and big batteries

[@MarkoRadulovic]

Yeah, this 5x bigger battery was fully charged, it could not provide electricity for 8h otherwise

[@danmilan4763]

I think the charging amps is constant..because it is the rated charging amps of the UPS so changing like 7ah battery into.12ah battery will charge longer..

[@MarkoRadulovic]

@@danmilan4763 That is correct

[@setecastronomy_hc]

Yeah, most of these can only charge at 1A so it takes about 8h for OEM battery. 25Ah should be charged after a day and a half. Since current while charging is limited, it most likely won't overheat, however inverter could overheat at higher loads. I have 480W model and it gets really hot if i discharge it at half of that power for long periods.

[@chieftain8638]

Ja imam bijeli ups apc500 koristi onaj akumulator 7ah da li bi se mogao koristi agm akumulator 12 v 75 ah ako se spoji paralelno na 7 ah akumulator da bi napajao video nadzor i tako

[@MarkoRadulovic]

Vazno je da akumulator bude DEEP CYCLE i da opterecenje ne bude vece od oko 20% deklarisanog opterecenja UPSa. Deklarisano opterećenje UPSa se odnosi na kratkotrajno napajanje od nekoliko minuta. Za duže napajanje dakle mora bar 5x da se smanji opterrćenje. Proverite da li se pregreva. Jeste paralelno

[@nimranniyas2155]

can connect 100Ah or 150Ah battery?

[@MarkoRadulovic]

Any battery capacity is fine, onlz take care with how much power in watts you draw

[@anuruddhadissanayake4881]

Is it safe to do like this ?

[@MarkoRadulovic]

Very safe, because I explained that by using a very small fraction of the declared UPS power there will not be any overheating in case of non stop use. That is: if you have a 500W UPS it is ok to power several surveillance cameras for a total of 50W. Surely not a nonstop power for a desktop. More is explained in comments below

[@arlan2008ph]

it consumed 160wh.. or 13.33ah of battery which us 50% DOD of lead acid battery

[@MarkoRadulovic]

What is your point?

[@setecastronomy_hc]

It consumed more, inverters in these things aren't really that efficient so you need to add about 10-20W just on losses in switching circuit. It's not recommended to run lighter load such as these because of that since efficiency is about 50% with 20W load. Battery was probably dead after 8h.

[@thealgerianman7275]

Hi marko Im thinking of replacing my 600va ups battery because when im gaming and electricity goes down it instantly turn off Will changing the battery to a high capacity one would solve my problem?

[@MarkoRadulovic]

Bigger battery will resolve the problem but under one condition: your UPS must be rated for power several times over your desktop. Say if the desktop draws 300W then UPS should be rated at least at 1000W. Otherwise, your UPS will quickly overheat and turn off even with a much bigger battery. Again, instead of the low battery capacity it will turn off due to overheating. 1000W+ UPSs are not that expensive, so what you want is very realistic, say 1200+W UPS and 50+ Ah battery

[@thealgerianman7275]

@@MarkoRadulovic so my 360 watt ups cant handle a biggere battery because it will overheat right???? thank you for helping me❤❤❤

[@thealgerianman7275]

​@@MarkoRadulovic hey marko i have just checked the markt and i found that a 1050va or 630 watt ups cost around 350 dollars 😥😥

[@znasee8759]

ee brt imam problem sa trimerom kada hocu da nabijem gas na strunu kad kosim kaze wooowuuu i nabije gas sta je to da li treba smesa da se nasteluje za to sto radi to wooo i kad kosim nabijem gas i kad krene da kosi kaze wooo i kosi malim obrtajima trimer je 2ks kako to da nastelujem karburator molim za odg u savet posto sam tek poceo da radim sa trimerima

[@MarkoRadulovic]

Znaci ne prima gas?

[@znasee8759]

@@MarkoRadulovic prima ali kad je struna on kaze woouuuu i moze da nabije pun gas u drzi gas super ali nisam gledao filter zraka a kad sam ga kupio ok je primao gas mzd je navukao ness u filter zraka

[@znasee8759]

@@MarkoRadulovic da

[@prakharsrivastava8052]

What temperature will be called overheat for ups transformer

[@MarkoRadulovic]

That is an excellent question, well the baseline transformer temperature is about what was measured here around 50C. Overheating is considered when the transformer reaches 65C. This gives me the idea to further this study by testing higher loads on this UPS to see at which % load it actually reaches 65C.

[@MarkoRadulovic]

I expect that UPS will overheat at a much lower point than its declared load of 380W because the backup time is greatly extended here with a bigger battery. So the rule is: BIGGER BATTERY - LOWER LOAD

[@prakharsrivastava8052]

I use only 100 watt load on 12 ah battery but while charging transformer heats so much that i can't rest my finger on it

[@prakharsrivastava8052]

And i dont have thermometer to measure temperature

[@MarkoRadulovic]

​@@prakharsrivastava8052 Well if you cant rest your finger, it must be close to 65C. That is strange as charging should not be a big effort for the transformer, especially the 12Ah battery. Could it be that battery is old or faulty, these batteries should be changed about once a year. If it is not a battery, it would be good to call the manufacturer and see what they think, my opinion is that it would be good to replace that UPS as it may become get worse and you then have a fire hazard. these things are quite cheap up to 1000W power

[@jvandervyver]

What about you crack out a multimeter and measure the current going into the battery during charge? I'm guessing less than 1 amp. So basically your battery is toast after doing this because the UPS will simply never be able to get that big of a battery back up to 100% charge. Something critically important for a lead acid battery. This is all just silly, the money saved just makes no-sense if you can buy an off the shelf inverter charger for very little extra money. This is your classic hilly billy hick hack that seems great but if you actually understand the drawbacks, you realize its a bit like pissing in the wind really.

[@MarkoRadulovic]

Please, you seem a bit overly critical. Firstly, the battery is charged up to 100% without any problem. The problem with battery charging was not ever mentioned in the video. But, I agree that there are always better and more expensive solutions. This works perfectly fine for anyone who needs a very small amount of power to back up several surveillance cameras for up to 8 hours, why not. It has worked fine for years, despite your theoretical scepticism. This is great for the specific purpose that is precisely defined in a video and in the description. If instead of 50W I needed 1kW, yes, then a sinusoid inverter with large 200+Ah batteries would be the only solution

[@ishwarkhatri8110]

Computer kitni der chal jayega

[@MarkoRadulovic]

यह वीडियो दिखाता है कि निगरानी कैमरों जैसे बहुत छोटे उपभोक्ताओं के लिए यूपीएस समय कैसे बढ़ाया जाए। 500W कंप्यूटर के लंबे बैकअप के लिए, आपको कम से कम 1500W के लिए घोषित UPS और 100Ah की बैटरी की आवश्यकता होगी yah veediyo dikhaata hai ki nigaraanee kaimaron jaise bahut chhote upabhoktaon ke lie yoopeees samay kaise badhaaya jae. 500w kampyootar ke lambe baikap ke lie, aapako kam se kam 1500w ke lie ghoshit ups aur 100ah kee baitaree kee aavashyakata hogee

[@Sunzofmann]

id knock out that beep speaker its annoying

[@MarkoRadulovic]

Sorry about that

[@jagdishwarbiradar1763]

You can remove beep sound by just removing buzzer , it's simple one

[@spbelectrical4371]

Irritating music

[@winandd8649]

Ofcourse it is not going to overheat, the inverter is only using what it can take

[@MarkoRadulovic]

Well, with 200W load it heats and automatically stops within seconds. This is still under its declared power of 360W. So, overheating is definitely an issue

[@MarkoRadulovic]

The whole point here is that it WILL NOT overheat ONLY IF load is a very small fraction of the declared power

[@winandd8649]

@@MarkoRadulovic Okay, but then it's just a bad UPS design, and it would overheat with a smaller (original) battery too when drawing 200W

[@rkb6783]

Um... So... And I... But then... What... Its... Uh... Well... Why... Useless... Then... You... Um... Sounds... A💡... WHIMPY ! Done... no test... Im... Not... Just... Sad... I am F - - - - - g DISAPOINTED !

[@MarkoRadulovic]

This is tested and aolid science