DIY Mini UPS for WiFi Router V5.0 || Multiple Outputs 12V / 9V / 5V

[@ishwardursen2864]

I am now 79 year old.I made this project 2 years ago and it is working excellently.We, here in South Africa , experience regular power outages and this project has been most useful.Many thanks and God bless you.

[@GojoSatura-z8c]

Is it work good mine is not giving good backup it only work for 20mins do you know what while be the problem

[@kevinjaspan9654]

I hear you and feel your pain. I was born in South Africa, though I left 37 years ago, and watch the shocking news continuously. Good luck with the Escom rebuilding or replacement! How can you live without reliable power is beyond me.

[@wobbleszo]

I have really enjoyed seeing the evolution of this project from the first one that you built through each iteration it has gotten better and safer. Thank you for sharing your progress with us!

[@opengreenenergy]

Glad to hear you have enjoyed my work. Your feedback motivating me to do more interesting work in the future. Thank you

[@chandankushwaha9514]

@@opengreenenergy Can I order this ? I need it for router + bsnl air fibre antenna .

[@mohammedrashed5045]

I want buy this

[@nomadicbharat8642]

@@mohammedrashed5045 many ups router available in Amazon and Flipkart buy ..i also buy and working properly

[@Shri_Bhoorakaka]

@@nomadicbharat8642 DIY is best one !! Robust and future proof

[@AmmarAlSaei]

Great project.. Great presentation.. Great voice clarity and no background noise.. Thanks man.. keep up the good work..

[@opengreenenergy]

Thank you so much

[@opengreenenergy]

Thank you for the feedback 😊

[@bwraith]

This is a very awesome project, I enjoyed the detail and watching the setup, I may end up making my own here soon. Again thank you so much!

[@opengreenenergy]

Thank you so much. Glad you like my work

[@walberjunior]

I tested some projects to make my UPS. With MOSFET, with relay, etc. And as always I had some kind of problem. I did some tests with the XL4015 used in this project and arrived at the following solution that I'm still testing, but so far no problems. The power source connected directly to the input of the XL4015 (for battery charging) and a step up/down connected in parallel with the XL4015 (to regulate the voltage that goes to the router). The battery is connected to the output of the XL4015. In the tests that I did the behavior is the following: On the XL4015 you can control voltage and current from IN to OUT. But in the opposite direction, OUT to IN the supplied voltage is the same as the battery and has no current limit. So while the power supply is on, it charges the battery and provides power for the Step Up/Down. When the power supply is turned off, the energy passes from OUT to IN, providing energy for step Up/Down without router restarting. So far everything working OK, inside the case (without opening for air circulation) the temperature is approximately 30ºC. uploaddeimagens.com.br/imagens/gtpRh_I

[@opengreenenergy]

Thank you for the feedback. This circuit is really simple, I will definitely gonna try it soon. If you have any further test results, please share it.

[@walberjunior]

@@opengreenenergy I'm planning to put more load on the circuit this week. My goal is to connect 1 12v 2a modem, 1 12v 2a router and 1 rpi4. At least in the tests I did, the modem does not consume more than 0.500a, despite the specification of 2a on the label. But I'm going to test with other devices first so I don't risk running out of Internet and without rpi4.

[@roshan00778]

@@walberjunior hey, whats the ratings of your input adapter and are the batteries getting charges fully as li-ion battery require cc or cv method for charging? what voltage & current have you set in both the convertors for your router? do i need to buy a smps as the whole 2.5amps(my router rating) which comes from the input will be used by the router itself?

[@walberjunior]

@@roshan00778 I changed the project to power 2 routers, 1 rpi4 and 1 esp8266 to integrate with Home Assistant. Until today working very well. The rating if I'm not mistaken is 5A, but it's a Chinese product so it probably doesn't deliver 5A. Batteries are fully charged. The charger I configured for 16.8v@500ma. The converter that feeds the routers if I'm not mistaken is in 12.1V. It depends on your project, how many batteries you are going to use, if you need faster charging, etc. If you can measure the actual consumption of your router that would be great. One of mine uses a 2A power supply, but the actual consumption is no more than 800/700ma. Most products do not deliver what is on the label, but the minimum you need is a 2.5A power source plus charging current, let's say you use 500ma, that is at least 3A real. You can see photos of the project at this link homeassistantbrasil.com.br/t/esquema-nobreak-dc-dc-para-modem-cameras/7769/5?u=walber

[@roshan00778]

@@walberjunior thanks for your reply, i really appreciate it

[@SazzadHossain-ww3xo]

Hi, thanks for sharing a nice & useful project with us. But I think in your design two thing u don’t design it carefully 1. 12v Output whens the the mains powers is active: u set input voltage 13 volt and its directly connected to output by a diode. If the foreword voltage drop is .3v the output voltage will be 12.7 v which is high for the 12v output. 2. power switching : whens the mains on 12v output jack provide 12.7 . Now power goes and battery pack start as u set buck boost converter output 12 v. Thats mean when power switches there always a 0.7v voltage spike it’s not god for router. Suggestion: 1. u can connect input 13v main power supply in input of buck boost converter not to output thus u get always a steady output voltage . 2. U can use electrolytic capacitor in input & output dc port to reduce ripple and get steady voltage.

[@opengreenenergy]

Thank you for the most valuable feedback. I was also thought to connect the adapter output at the input of the buck boost converter but changed my mind for considering the continuous power wastage in the converter module. But I missed the point that I am not using a 12V adapter at the input. Use of capacitor is nice feedback. I will update all these in my schematic soon.

[@SazzadHossain-ww3xo]

@@opengreenenergy thanks for considering my suggestion. Best of luck for your future project

[@opengreenenergy]

It's my pleasure 😊

[@navaneethanravichandran9161]

Hi, i did this project using 2200uf/16V capacitor at the output terminal. But during AC to Battery switching output voltage is increasing to ~17V and decreasing to 12V. What might be the cause?

[@technicalash8233]

Which capacitor should i use???

[@AnandakrishnaSudhakaran]

I searched for a best solution. but this is simple and great.🔥 Good Job. Nice and clean.

[@opengreenenergy]

Thank you 😊 Glad to know that it is helpful for you

[@1carusGG]

This is pretty nice. Probably better than anything you can buy commercially.

[@daneshnirmalkar7891]

kuch bhi bolo... apne india me to aapka hi project future bnayega........... .. 👌👌👌👌👌👌 such a great sir

[@opengreenenergy]

Thank you so much. Your feedback means a lot to me.

[@JerryDoe]

I simply modified my APC offline UPS by replacing the 7AH battery with 2x20AH VRLA batteries and added a small fan to the internals that get hot when the UPS takes over, the 110v to 12 transformation loss is so little and can be disregarded. My cable modem can easy run 24 hours and even longer when power fails, my TV is also connected to it and digital TV decoder so with all powered on i have around 3 hours. Usually power outages don't take longer then 2 hours in my area and are mostly the result of a blown transformer or maintenance at the hydro powerplant turbines.

[@arsenicjones9125]

Seeing you plug it in I think the box could use some additional support designed in around those areas. Otherwise this was a quite interesting design concept. You could also add a USB plug using the 5v dc for charging phones while the powers out too.

[@369LandXplorer]

These days all the routers have USB ports to charge phones you can connect to router.

[@ReadGospelOfJohn]

​@@369LandXplorer USB ports at routers are not for charging phones, but for connectivity - mine has SATA interface with HDD connected there. USB port would be nice optional extension to your project.

[@HaseebElectronics]

wow it is brilliant and perfect project thanks for sharing

[@opengreenenergy]

Thank You. Your tutorial are excellent, I will learn lot of things from you.

[@ErCanEverything]

This is very good video, thanks for sharing👏🤝🤝🤝🙂

[@opengreenenergy]

It's my pleasure

[@nithinbabucp]

Thanks for a great video.. This helped me a lot to make one myself. MOSFET idea was great for switching.. I had an issue to find the correct case since 3d printing is costly but found a plastic junction box from electric shop. Soldering worked for spot welder and MOSFET heating was an issue which was mainly due to oversite on diode usage which looped the power back from battery to gate. Thanks again.. Keep up your great work Sir

[@mazinmahmood]

Built this and it works like a charm. I didn't use the 9v output though... Great and keep rocking

[@yashchaudhary7404]

Aur up aur down booster module lagana jaruri hai please help bro

[@MasakyoRenSai]

Thanks very much Bhai! I have most of the required components lying around and I already have my own ideas on how to build one. However, your tutorial makes me understand in-depth everything one needs to know. Keep up the great work. Subscribed!

[@opengreenenergy]

Glad you like my project bhai 😊 Good luck 🤞

[@gta_KaskaD]

1:10 Why do you use LM2577 (LM2596s)? Is it stabilize 12v?

[@MayankJairaj]

Dang the video presentation was awesome! Looks like ready to be sold Why don't you collab again with PCB Way to get us some integrated boards, would be awesome to get rid of the wires and the soldering process

[@anshumanbose7430]

There's only one more upgrade to this possible now that is to add a schedule on/off feature. If that is done then this mini router ups can undoubtedly the king of all DIY mini UPS projects.

[@electronicslab_in]

1:39 mosfet used is P type as it connected on high side. It seems correct. But R2 is connected to groud. Shouldn't it be connected to positive of battery? So that gate of mosfet is pulled high when battery is not suppose to supply power and hence the mosfet to be remain off. When main adopter power cuts, gate should be pulled low (so in a way it is correct to connect gate to positive line of input buck converter but it should be connected through some resistor or a combination of BJT and resistor). Now another problem i feel is that when the battery is significantly discharged and main power gets on, circuit may not work as desired. Just were my thoughts. Any expert comments?

[@electronicslab_in]

Another way could hv been using a N channel mosfet but connecting in negative rail (but at same position) and controlling the gate using positive bus of input supply.

[@pawanprajapati3587]

Same problem after mains on curcuit is not working as previously. Any solution?

[@pradipkhangembam4294]

Hi I am replying to an old comment but I would like to know why do you think the circuit may not work as desired when the battery is significantly discharged? I may have come across this issue. Does it have to do with R2 connecting to ground?

[@TWMist]

HI im trying to understand your scimatic, and have a very basic understanding on electronics. Is the mosfet in this design only turned on when the DC input drops is disconnected?

[@richd.3270]

Detailed and precise instructions, with complete parts list and specifications. Very nice project! I have subscribed! ☺

[@opengreenenergy]

Thank you so much. Glad it is useful for you

[@ansmandar]

Amazing work.. thanks for sharing. I will try to build it. The only problem is to find more than 12.6v charger. There are some available with 15v 3a but thoseare expensive. Most of them available are 19.5v 45 w charger which are used for laptop charging. Excellent work once again. Keep up the good work. All d best. 👍

[@zabiulig]

Which charger do I use ?

[@abdullaalmamun321]

when power failed. instantly stop router and onu. after some seconds restart and working fine. and again power comes not shutdown..... Working continue. whats the ptoblem?

[@davidecharm]

Hi. What is the power supply voltage for input? I read 12V-15V, but working with a 12V? The BMS need 12.6V. Thanks for your support!

[@kenanelicanov2327]

It is also interesting forme. I think the converter at input will be boos converter to boost 12v to 12.6 v from router adaptor

[@Ultimateharen]

​@@kenanelicanov2327battery will take too much time to charge too inefficient. Battery will get damaged after few months. Instead of that use 13v or 14v 15v adapter.

[@GMO--ge4ir]

Thoroughly professional job‼️👌👌👌👌👌

[@davidsantos4804]

In this project can I use the IRF9540N mosfet instead of the IRF9540?

[@thebaldconvict]

Nice! Only one small problem for us with this one, if the power goes out to our block the ISP equipment in the cabinet outside goes down also. In fact so does our local mobile cell tower haha

[@piyushnagawat24]

I dont think this is the case with fiber cable as i have used wifi even in power outage.

[@thebaldconvict]

@@piyushnagawat24 Yeah some stuff is powered from the road, especially if it is linked to telecoms. BT in the UK have battery backups in various places underground so you can still call the emergency services in an outage.

[@whocares3132]

mobile cell towers never go offline they have emergency Generator and Battery Those acts like big UPS. I have never seen any cell tower going offline in my 3rd world country , you should investigate there must be others reasons cell tower going offline.

[@whocares3132]

Also if you have fibre optical cable they do not require power from the road line/etc to stay online they are directly powered(Its just light inside cable) from ISP. so they never go offline

[@Shri_Bhoorakaka]

@@thebaldconvict Abe Chaman Zingaa !!

[@rabbippfx]

Hey ...this is a very nice project. I just have one confusion ! I might be wrong, but I think a pull-up register is needed at the gate and source pin of the MOSFET. I'm a amature by the way . Please help me about my confusion . Thanks

[@odoohub5010]

What is the purpose of the mosfet and resistor you used in this version. Because in the older versions i didn't see mosfet or resistor in them

[@marshallgeek]

@Open Green Energy Instructable link is old. and also in description 2S BMS is mentioned. What amp 3S are you using? And in description you mentioned XL-4019 so where you used it? and you haven't mentioned LM2577-LM2596s in description. Description contradicts with video

[@opengreenenergy]

Hi, You are correct. I have to update all the details.I am traveling now, so just copied the description from my V3.0. Sorry for the inconveniences.

[@dl_informatica]

Very good.. What is the MOSFET for in the project?

[@haseebelectronicsurdu]

fantastic and adorable tutorial. thanks for sharing

[@yashchaudhary7404]

Sirf 12 volt ka wifi router ups banana tha uske liye kiya kare

[@jyotirani8232]

Can I remove MOSFET, if no MOSFET what will happen? please tell me.

[@davidsantos4804]

En este proyecto puedo usar el mosfet mosfet IRF9540N por el IRF9540 ?

[@nikunjmodi555]

Instead of using buck convertors for output can we use 7812,7809,7805 as they are cheap, takes less space and light weighted . Plz suggest.

[@anilbabub.s6668]

We can use but it didn't have protection and heat lot and it have some current limit

[@nayanmondal1194]

Aap ka jo buck boost converter link diya hai o to xl 6009 xl6009 hai matlab voltage ko boost karega

[@meraipurian]

aap shark tank india me lekar jao apne projects apke projects bhut sahi hai market apki diwwani ho jayegi 🤩

[@godfirstventure4405]

Please,what software did you use for your 3d design, love the design but the case is some how big, with the circuit, I fell you can do better by reducing the spaces and adding layers to reduce the size of the power bank an portable.

[@MoMo-ki9sj]

Can I use a 7ah lithium battery for this project?

[@Fnta_discovery]

Hi dear can I used your 3D box and modify for a commercial sale ?

[@jyotirani8232]

great project.

[@ronaksoni2729]

hi babe

[@Mechmantraprojects]

Hi admin, Can you make our existing circuit with solar power with normal electricity charger also. Case1 : when sun is there powerbank will run on solar pannel Case 2 : when sun is not there or low solar power it will shift to 12volt adapter power Case 3 : when solar and adapter power is absent it will shift to charged batteries. Everything should be automatic.

[@Shri_Bhoorakaka]

150 $ & I'll share this whole project to you !!

[@fabioyt77]

Hi, awesome project: a question, if i don't need 5/9v output i can just avoid to add the 2nd XL4015? , thanks!

[@opengreenenergy]

Yes, you can omit

[@NiceEyeballs]

I wanna have a router ups and a camera ups but combined. I think I can just turn the converter you used for 9V for my requirement of 5V for the camera.

[@paulokloho]

@OpenGreenEnergy Will all the components work with a 3s3p battery configuration?

[@foysalashrafulislam325]

Can i use IRF 9640 instead of IRF 9540.... Please please tell me....

[@davidsantos4804]

Please tell me how to adjust the current, should it be with a load on?

[@kjotuber2729]

continues charging while dc in used?

[@sevagj.b]

I see you put Power Mosfets IRF9540 , You said in the video or the descriptions is p channel but actually in the links is showing N channel most, Can you please explain that before I order the things Thanks

[@opengreenenergy]

IRF9540 is a p channel MOSFET. The Amazon description is wrong

[@sameulbashar3954]

Best vdo for mini ups.

[@rohankarmakar8071]

Is the mosfet irf9540N work at 8.4v ?? because i thought make this project with 2s bms .

[@vincentpool6595]

Hi. Plz excuse, I'm a newbie. I don't understand the resistor connection. One side is connected to mosfet, and the other side? To red or black wire, or to both?

[@lonelyboy7343]

Does it auto switch to battery mode? I have a sliding door project which works in 12V 5A. Can I use this system as the battery backup for my project?

[@kecsrobi6854]

doent the PMOS need a heatsink too? also wont the plastic there simply melt ? or does it even get hot ?

[@opengreenenergy]

Yes, it needs heatsink if the current rating is high. Ofcourse, it is not advisable to mount directly on to wall of the enclosure.

[@pcmedicbiz]

If the PMOS is saturated ( fully on ) and has on-resistance of a few milliohms the heat would be low!

[@TechBuilder]

beautiful!

[@opengreenenergy]

Thank You Angelo

[@ashwinishinde4677]

@@opengreenenergyz. h. h. b. n. I.

[@PinoyTechTutorials]

thank you very much sir! freaking good video presentation!

[@foysalashrafulislam325]

Can it have CC-CV power supply for batteries....

[@iotrnd2384]

is this auto Switch when no power supply from main?

[@Virivintage]

@opengreenenergy one question how can I add a third output of 19V I have a third device I need to backup. Thank you in advance. Nice UPS work

[@ryanlim2104]

Will it automatic shutdown when the output voltage lower than the threshold limit being set?

[@hasanmahmud8093]

Can you plz tell me why you use xl4015 module to the charging port ? You could have use a 12.6v adapter

[@opengreenenergy]

Yes, that can be done

[@emirzeeshan9444]

what if I use 3s 8p. still I can use all the material you used? especially the diode

[@VforValenti]

Why not a ready UPS module???

[@gowthamk8042]

hi bro i have one qus at same time we can use both 9v and 12v ? or only one use at time

[@CodySmiley]

Can I use other mosfet? What parameters? I try to make 19v UPS for my device. Can I use IRL540N instead? Thanks for help.

[@chandanynot]

Really enjoyed it. So cleanly done. Subscribed and will keep watching

[@james130362]

Stunning project.

[@opengreenenergy]

Thank you

[@technicalsohil4063]

​@@opengreenenergy flop project

[@yatheesh999]

Can you make this version with solar panel and 12v garden fountain pumps, with auto cutoff when battery power drops below 40%

[@opengreenenergy]

Thank you for the feedback, I will make it in my future video.

[@alicebunag5967]

Can I daisy chain like 3 of that and will that extend the operating hours of my modem router off grid?

[@sameulbashar3954]

Love from BD🇧🇩🇧🇩🇧🇩❤❤❤

[@kalekamal374]

I didn't get the 1N5822 diode. Is it possible to use other diodes instead? If so, which one to use?

[@opengreenenergy]

You can use any diode with current carrying capacity more than 3A. Try to get Schottky diode ( SR560) , if you will not get, you can buy any general purpose diode.

[@ZainHK99]

when you were setting up the current limit, did you use a resistor in series or did you just connect the probes directly on the plus and minus terminal?(for the first buck converter)

[@opengreenenergy]

No, i have not used a resistor

[@bajibeag]

Awesome Project's are making and Thank u very much🙏 we are Learning!!

[@opengreenenergy]

Glad to hear that you like my work

[@bajibeag]

@@opengreenenergy yess I like it very much of your Project's!!!!!! And Please Provides parts link in Decreption. I like u r 12v wifi router UPS !!! please provide me that parts link where I can buy in amazon some parts are currently not avalaibe showing. Please suggest me... Heart fully love u❤️💚💚💚💚💚💚

[@djhackett007]

SUPER CLEAN ✅✅✅

[@carlnapster2202]

Hello, should i use two buck-boost converter for dual 12v output or the same schematics, just adjust xl4015 to 12v?

[@technovariable831]

Do you sell it? Need to buy all assembled & working.

[@MahipalYadavmahii]

Can I use solder instead of spot welder, to get desired cell configuration? Do not want to spend that much amount just for spot welding untill and unless it is very crucial.

[@opengreenenergy]

Yes, you can solder

[@xmarkggwp]

what IRF9540 does?

[@mrvx0026]

What the ampere of battery and can we add more battery to the bms ?

[@TanzilHudaJnU]

Can I use IRF540 instead of IRF9540?

[@ericktorres8027]

Is it ok adding battery for more hours instead of 8 hours i want 24hours

[@HockingVideos]

I like what you have done here, I want to build one myself, but I need to have "24V 15A input" and want to use 2X 12v 9Ah Lead Acid batterys as the battery pack, need 2X 20V 4.5A outputs, 2X 12v, and 1 to 2 5v 2A outputs and maybe others, I don't quite understand how the charging Circuit works or how to set it up for this type of setup, any help would be much appreciated.

[@umarmughal9238]

In the you use the mosfet irf9540 P channel and in the description you share the link or irfz44 N channel

[@theWSt]

Niiiiice work, I'm impressed! 👍

[@kennith.]

Can this be used as a double conversion UPS. Is it possible to have power on all the time to the UPS and then when the power goes down it takes over supplying power. Then it can charge itself when the power comes back on. Like set and forget. Should be able to smooth spikes and sags?

[@sazamaut3321]

I have a question.... 12v output section directly connected via a diode which can out what we input... Then what if, i put 15v adaptor in input outupt of 12 v be same as input... Nd router input 12v only. Can 15 v adaptor destroyed my router.. Plz answer...

[@kchandrakant50]

You have mentioned 12 to 15 volt input. Most routers work at the highest of 12 volts. Will they survive on 15 volt supply as you have shown 1 power line direct to the router from the power source.?

[@shankargurav]

I have 24v POE CPE device also to take care. Please suggest changes to accommodate 24v and 12v both power backup in same circuit.

[@odoohub5010]

How much on the average does it cost to print the 3d box

[@whocares3132]

I have a router and a ONU both need 12 volt. Ho can I achieve 2, 12V output?

[@fariajahannazma8036]

Nice project bhi a

[@opengreenenergy]

Thank You

[@saschatrumm2852]

For what reason the Mosfet is there I dont get it ?

[@anuradhaamarasinghe9649]

Quality work bro. Thanks and keep it up

[@yuriinosach5582]

Hi, thanks for your video. What type of 3D printing did you use?

[@aravindkrishnan85]

Will you produce and courier it as needed. Retail users?

[@AbidAli-bo8sv]

Isn't 2A for charging too much?

[@jairinho3949]

My input modem is 12V - 3A ...This works?, what adjustments should I make?