A UPS can keep OBS running through a power cut only while it can supply the connected equipment. To protect a live stream, back up the computer and the network equipment it depends on, then test both together; a UPS cannot cover an outage longer than its runtime or an ISP failure.
For a local recording, set OBS to record in MKV so an ungraceful stop is less likely to corrupt the entire file. That protects the recording from one kind of failure, not the computer or unsaved work. The practical approach is to plan power, network and recording separately.
Estimate the computer’s load and the outage window
Start with the result you need. If you only want time to save work and shut down safely, that is a different target from keeping OBS encoding and broadcasting for the duration of a scheduled cut. Neither goal can be translated into a reliable universal UPS size without knowing the computer’s load and how long it must run.
Check the computer’s actual power draw while OBS is doing the work you expect it to do. A desktop with a dedicated graphics card can draw differently while encoding than it does at idle. Use a suitable power meter if available, or check the computer’s component specifications and allow for the fact that the OBS workload changes the demand. A laptop’s battery may provide some backup, but its runtime also depends on its condition and workload; do not treat it as a substitute for testing.
Look at the outage notice from your own electricity distribution utility. India does not have one national schedule for local maintenance cuts: the Ministry of Power notes that electricity supply and distribution fall within the purview of the relevant State Government and distribution utility. Its release on power supply also describes the regulatory context, but it is not a promise that your area will have no scheduled interruption. Use local notices to plan, and leave room for the cut to last longer than expected.
Write down the duration you are trying to bridge. For example, you might decide that the goal is to keep a short evening devotional programme online through a brief interruption, rather than assume the UPS will carry an all-night stream. The first is a bounded requirement you can test; the second may require a different operating plan. Do not size from the channel’s label, such as “24/7”, alone. Size from the actual load and duration you are trying to cover.
Compare a UPS’s supported output in watts with the total load you intend to connect, and review its runtime information at a comparable load. VA and watts are not interchangeable labels for capacity; check the maker’s stated watt limit rather than assuming a VA figure means the same number of watts are available. Keep the UPS within its rated output and follow its instructions. No single VA rating is suitable for every OBS computer.
Include the modem, router and essential network equipment
A live stream depends on more than the OBS computer. If a powered modem, router, optical network terminal or other required network device goes off, the PC may remain on but lose its route to YouTube. Identify the exact equipment between the computer and the internet connection, then include each necessary powered device in the UPS load calculation.
You may have a fibre terminal and a separate Wi-Fi router, or a combined gateway supplied by your ISP. If the computer normally connects by Ethernet, include the router or switch providing that connection. If you rely on a separate access point or other powered device, decide whether it is essential to the broadcast and account for its draw. Do not put unrelated equipment on the same backup unless you have included its load; a monitor, speakers, chargers or room lighting can reduce the time available to the stream.
The useful comparison is not simply “small UPS” versus “large UPS”. Check the output rating, expected runtime at the combined load, transfer behaviour, battery condition and whether the package includes enough outlets for the PC and network equipment. A unit that can carry the PC but not the router does not meet the live-stream goal. Conversely, if your goal is only to save a local recording and shut down safely, backing up every network device may not be necessary.
Keep the connection path simple while testing. If the router is on backup power but the ISP’s street-side equipment or wider network is affected, your service may still drop. A local UPS protects the devices you plug into it; it does not supply power to equipment elsewhere or repair an internet connection. OBS’s stream connection troubleshooting guide describes network disconnections as a connection problem that may have causes outside OBS.
If an interruption occurs, OBS’s automatic reconnect can help with a stream connection that drops while the computer remains powered and running. It cannot encode video while the PC is off, and it cannot guarantee that a broadcast will recover after a full shutdown. Check the OBS reconnect setting as part of setup, but treat it as a response to a network interruption, not as a replacement for backup power.
Understand UPS runtime limits and trade-offs
A UPS is a bridge, not an alternative electricity supply for an indefinite stream. Runtime falls as the connected load increases, and the battery’s condition matters. A new unit’s advertised runtime may not describe what an older or poorly maintained battery will provide in your room, with your computer running OBS and your network equipment attached.
Look for runtime guidance at a load close to your measured combined draw. If the manufacturer provides only a broad estimate, treat it as a starting point and confirm the real result with your own equipment. Leave a margin rather than planning to consume every last minute of the stated runtime. A cut that starts shortly before a session ends, extra load from a device you forgot to count, or a battery that has aged can change the outcome.
Compatibility matters too. Some UPS designs transfer to battery differently from others. Government of India training material from BharatSkills and the Directorate General of Training describes an offline UPS supplying emergency power to a PC during sudden load shedding, with the option to continue work or switch off safely. That description is useful context, not a guarantee that every PC will ride through every transfer without a restart. Check the UPS maker’s specifications and test your actual computer; do not infer compatibility from the product category alone.
Use the comparison below when choosing among units, rather than selecting by a headline capacity number alone.
| What to compare | What to check | Why it matters |
|---|---|---|
| Output capacity | Rated watt output against the PC and network devices’ combined load | A unit can be overloaded even if its VA number looks generous |
| Runtime | Manufacturer guidance at a load close to yours, then a real test | Runtime is tied to load and battery condition, not just the UPS label |
| Transfer behaviour | Whether the PC stays on when mains power is removed | A transfer that interrupts the computer defeats the immediate goal |
| Outlets and connections | Enough suitable outlets for the devices you need | A router left off backup can still take the stream offline |
| Battery condition | Age, maintenance instructions and replacement guidance | A degraded battery may provide less runtime than expected |
If your test shows the UPS bridges only a short period, you have a choice: shorten the intended bridge, reduce non-essential load, choose a suitable unit with more capacity, or plan for the stream to end and restart after power returns. Do not keep adding devices until a unit repeatedly alarms or overloads. Follow its manual, and have electrical work or an unsuitable supply arrangement assessed by someone qualified.
Test the real setup before the session
A product label is not proof that your setup will survive a cut. Test on a day when you can afford to lose the session, with the computer running the usual OBS scene and the network equipment connected as intended. Make sure the UPS battery is charged according to its instructions, save open work, and have a safe way to stop the test if equipment behaves unexpectedly.
First check that the computer and router are actually plugged into battery-backed outlets, not outlets that provide only surge protection. Start OBS with the scene, encoder settings and local recording you plan to use. Confirm that the intended live connection is working, or use a non-public test arrangement if appropriate. Keep the test controlled: remove mains power from the UPS as directed by its manufacturer, rather than pulling cables or switching off equipment in a way the manual advises against.
Watch the computer, network devices and OBS as the UPS transfers. Does the PC stay on? Does the router remain powered? Does the internet connection remain available? If OBS loses the stream connection, note whether it reconnects while the computer is still operating. Confirm that the local recording file continues to grow. Restore mains power and check that the UPS returns to normal operation as expected.
A brief test confirms only that brief test. If you need to bridge a longer period, test for a duration relevant to your plan while observing the UPS’s status and following its instructions. Do not leave an unattended test running past a point at which you can safely shut down. If the UPS signals overload, the PC restarts or the router goes off, revise the load or the plan rather than assuming the next cut will go better.
YouTube advises creators to test a stream and monitor stream health, and to check that a local archive is being created. Its streaming tips are a useful checklist alongside this power test. Before a scheduled session, also check the current utility notice, verify your internet connection, start OBS early enough to observe it, and confirm the correct live event in YouTube Studio.
If power fails and the computer shuts down, do not assume the old YouTube event has resumed automatically when power returns. Check OBS, reconnect or set up the stream as needed, and verify the live event and its status in YouTube Studio. A reconnect setting helps only while OBS is running and able to attempt a connection; it is not a recovery guarantee after the machine loses power.
Set OBS to record locally in MKV
A live broadcast and a local recording are separate outcomes. The UPS is what supplies temporary power to the computer; the recording format cannot do that. MKV is useful because an ungraceful stop is less likely to corrupt the entire recording file than if recording directly to a format that needs finalising. It does not preserve unsaved editing work, keep OBS running or ensure every final moment is written if power disappears.
In OBS, open Settings, then Output, and find the recording format under the recording options. Choose Matroska Video (.mkv) and apply the change. OBS’s Standard Recording Output Guide recommends MKV for recording and explains the option to convert the completed file afterwards. Menu labels can vary between versions, so check the current guide if your screen differs.
Before relying on it, make a short recording with the same scene and audio sources you intend to use. Stop OBS recording normally, then open the file and check that video and audio are present. Confirm that the recording folder has enough free space for the planned session. A file being written successfully is useful evidence, but it does not prove the backup will last through an outage.
For a local devotional channel, for instance, you might want an archive of the morning programme even if the live stream is interrupted. MKV reduces the chance that a sudden stop will make the whole file unusable, while the UPS gives the PC time to continue or shut down. Those are distinct protections, and a local file still depends on the computer, storage device and power available at the time.
Remux an MKV recording to MP4 if needed
Some editing or sharing workflows prefer MP4. After recording, use OBS’s Remux Recordings tool to make an MP4 copy from the MKV. Remuxing is a post-recording step; it does not repair a machine that lost power, and it is not a substitute for keeping the original recording safe until you have checked the converted file.
In OBS, open File and choose Remux Recordings. Select the MKV, choose the destination if needed, and start the remux. Once it finishes, open the MP4 and check its picture and sound before deleting or moving the source file. If the MP4 is needed by a particular editor or platform, confirm that workflow with a short sample first rather than discovering a compatibility issue after a long session.
If the power cut happens while OBS is recording, wait until the computer is stable before handling the files. Check whether the MKV exists and opens. If it is readable, remux it only if you need an MP4 copy. The format lowers the risk of losing the entire recording after an abrupt stop; it cannot guarantee recovery of every frame or of work that was never saved.
Plan for the outcome you actually need
Some creators need a live, interactive OBS production: a presenter, changing scenes, live chat response or a programme that must be controlled from the local computer. For that job, a UPS sized to the measured computer-and-network load is directly relevant, but the broadcast remains exposed to longer cuts and connection failures. Decide beforehand what you will do if the bridge ends: stop cleanly if possible, notify viewers through your usual channels, or restart and verify the event when power and internet return.
Other channels mainly need continuous playback of a prepared file, with little or no live intervention. If your specific pain is that the computer must stay switched on just to repeat prepared content, StreamNeo removes that local-computer dependency by turning an uploaded video into a 24/7 YouTube live stream; it does not solve ISP failure at your end or make a locally controlled OBS production unnecessary. It is YouTube-only, so choose it only if that matches the format and control you need.
That distinction matters for devotional, lofi, ambience, study and local information channels. A live presenter cannot be replaced by a file loop without changing the programme. On the other hand, a prepared ambience video may not require a local PC to encode and send it all night. See how the content format affects a continuous YouTube ambience stream, and how channel owners handle a stream that must stay active between playlist videos. These are different operational problems from surviving a local power cut, but they can clarify whether local OBS is essential to your outcome.
If you do remain with OBS, set a realistic recovery procedure and keep the local recording independent from the live connection. A local archive can retain material even if the stream drops, while a UPS can keep the computer and network devices running for a limited period. YouTube’s live stream settings guidance is worth checking for the current event and stream configuration. For another prepared-video use case, this guide to children’s stories playing while OBS is closed can help you think through whether a file-based broadcast fits better than a continuously powered local setup.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
What UPS do I need for my streaming PC?
There is no responsible universal VA recommendation without your computer’s actual OBS load, network devices and target runtime. Measure or estimate the combined watt load, then compare it with the UPS’s watt output and runtime guidance at a similar load. Test the exact setup before relying on it.
Will OBS reconnect after a power cut?
OBS may reconnect after a stream connection drops if the computer remains powered and OBS is still running. If the PC shuts down, OBS cannot encode or reconnect until it is started again, and the YouTube event may need checking in Studio. Reconnect is helpful for some network interruptions, not a guarantee of recovery after power loss.
Should I record in MKV or MP4?
For a local OBS recording where an abrupt stop is possible, choose MKV to reduce the chance that the entire file is corrupted. If you need MP4 for editing or sharing, use OBS’s Remux Recordings tool afterwards and check the new file before relying on it. Neither format keeps the computer powered or saves work that was not written to disk.
Does a UPS keep a 24/7 stream online through a long outage?
Only for as long as its battery can supply the connected load, and only if the internet connection and required network equipment remain available. A longer cut or an ISP failure can still interrupt the broadcast. Plan the bridge you can test, and decide how you will verify and restart the stream if it stops.