Every household in Nepal has dealt with a power cut at some point. Load shedding, monsoon storms tripping the grid, a local line repair in your area — the lights go out and the first thing many homeowners wonder is whether their CCTV camera is still recording.
The direct answer is that no CCTV camera can operate with zero electricity. Every camera needs power in some form to function. What changes is the source of that power and whether your specific setup keeps running when the mains supply goes down.
This guide covers what happens to each camera type during a power cut, which NV NightVision cameras are easiest to keep running on backup power, and the practical solutions that work for Nepal homes and small businesses.
Does CCTV Work Without Electricity?
CCTV cameras are electronic devices. They need electricity to power the image sensor, the processor, the wireless transmitter, and the IR night vision LEDs. There is no workaround for this.
What people usually mean when they ask whether CCTV works without electricity is whether it works without the main grid supply. That answer is different. Battery-powered cameras, solar cameras, and cameras connected to a UPS or inverter can all keep recording when the mains go down. The camera itself stays alive. It’s the source of electricity that changes, not the need for it.
The bigger risk is the supporting equipment. Your WiFi router, your DVR or NVR, and any connected monitor all draw mains power too. A camera on battery backup that loses its router loses its remote access. If you want your full system to stay live during a power cut, every component needs its own backup plan.
In summary, the answer to the question of “Does CCTV work without electricity?” is that CCTV cameras cannot operate without electricity, but they can without mains power. However, although the camera itself may not be dependent on mains power, its additional components are.
What Actually Happens to Your CCTV During a Power Cut
Since we have established that many types of CCTV can work without mains power, the next question that often comes to mind is – what happens when the mains power is cut? There are four scenarios that occur when the power is cut. They include:
Cameras stop recording
A standard wired CCTV camera connected directly to a power adapter goes offline the moment the mains fail. There’s a gap in your footage from the start of the outage until power returns. For a home left empty during a Dashain trip to the village, that gap is exactly when you most need continuous recording.
Live monitoring gets interrupted.
Even cameras with local battery backup lose their remote feed if the WiFi router loses power. The camera keeps recording to its SD card, but you cannot view the live footage or receive push notifications on your phone until the router comes back online. A small UPS on your router alone solves this.
For a full guide on setting up remote viewing from your phone, the CCTV camera to mobile connection guide covers the Smart Life app setup step by step.
Stored footage remains safe (if the system is intact)
Any footage already recorded is not lost during a power cut. Files stored on an SD card, DVR hard drive, or NVR stay intact regardless of the outage. Once power returns, your system picks up where it left off. The only footage you lose is the recording gap during the outage itself.
For guidance on managing storage and deleting old recordings, the CCTV recording and storage management guide covers SD card, DVR, NVR, and cloud options.
Security blind spots open during the outage window
The real problem with power cuts is not equipment damage. It’s the unrecorded window. A home or shop without backup power has a predictable gap in CCTV coverage every time load shedding hits, and anyone paying attention to your area’s outage schedule knows exactly when that window opens.
Types of CCTV cameras and their power requirements
At this point, we have already established that not all CCTV relies on mains power. Their requirements also vary based on their type. Therefore, by learning their differences, you will be able to pick the best one for your house, especially if you live in an area where you often face power outages. Some of the main types of CCTV cameras based on the need for electricity are:
Wired CCTV Cameras
These are the most commonly used CCTV cameras for domestic and commercial purposes. Wired CCTV cameras are connected to a power source.
These cameras need a constant electricity supply to operate. When the power goes out, both the camera and the recording system stop working immediately. Without any backup like a UPS or inverter, wired systems cannot record or transmit footage during outages.
Wireless CCTV Cameras
Wireless cameras send footage over WiFi rather than a video cable, but they still draw power through a USB or DC adapter. During a power cut, a wireless camera on a standard plug goes offline just like a wired one.
The practical advantage of wireless cameras is their low power draw. All NV NightVision cameras run on DC 5V, which means a standard USB power bank can keep them running for several hours. You can also check the full range of NV NightVision wireless CCTV cameras to compare power specs across models.
Battery-Powered CCTV Cameras
Battery-powered cameras have a built-in rechargeable battery that keeps them recording independently of the mains. They’re the simplest solution for backup power because there’s nothing extra to set up.
The trade-off is battery capacity. Continuous recording drains a battery much faster than event-based recording triggered by motion detection or human detection. Most battery cameras last significantly longer when set to record only when something moves in the frame.
Solar Powered CCTV Cameras
Solar cameras charge a battery through a solar panel and draw from that battery to run. Nepal’s sunlight levels for most of the year make solar a practical option for outdoor cameras, particularly in locations where running a power cable is difficult.
During the monsoon season, cloud cover reduces solar charging. Most solar camera setups include enough battery storage to run through two to three days of low sunlight before needing a recharge. For outdoor installation considerations specific to Nepal’s climate, the WiFi CCTV camera installation guide covers positioning and power setup in detail.
How to keep CCTV working without electricity ?
Even if the main electricity supply is cut, your CCTV system can continue to work. You can maintain your CCTV system even if you lose electricity. These are the solutions that work practically in Nepal:
UPS (Uninterruptible Power Supply)
A UPS sits between your mains supply and your CCTV equipment. The moment power cuts, the UPS switches to its internal battery instantly with no gap in recording. For most Nepal home setups covering one or two cameras and a router, a mid-range UPS gives 30 minutes to a couple of hours of continued operation.
A UPS is the easiest starting point. Plug your camera, router, and any NVR into it, and your system keeps running through typical load shedding periods without any manual intervention. It’s the most common backup solution for homes and small offices in Kathmandu.
Inverter with battery bank
An inverter paired with a dedicated battery bank gives longer runtime than a standard UPS. It’s the better choice for larger setups covering multiple cameras, a DVR, and monitors. A properly sized setup can run a full home security system for six to eight hours on a single charge.
The setup cost is higher and the batteries need periodic maintenance, but for areas with prolonged or frequent outages, an inverter setup is the most reliable long-term solution. Many shops and offices in Nepal that already use inverters for general power backup can run their CCTV off the same system with no additional equipment.
Solar power system
A solar setup with battery storage removes grid dependency entirely. Once installed, your CCTV system has no ongoing electricity cost and runs through any outage, any load shedding schedule, and any weather event. In Nepal’s climate, a south-facing panel with adequate battery storage can cover a two to four camera system reliably year-round.
The upfront investment is higher than a UPS or inverter. For rural locations, outdoor cameras at the boundary of a property, or anyone who wants zero dependence on the grid, solar is worth the longer-term calculation.
Also Read:
How to Delete CCTV Recording & Manage Storage – SD Card, DVR, NVR & PC
CCTV Camera Range: How Far Can a Security Camera See?
How Long Do CCTV Cameras Store Footage?
NV NightVision Cameras and Backup Power
Because every NV NightVision camera runs on DC 5V USB power, they’re among the easiest cameras to keep running during a power cut. A phone power bank, a small UPS with USB output, or any 5V battery adapter keeps them online.
Rozil Thapa, who founded NV NightVision after six years in Nepal’s CCTV industry, recommends putting at least the camera and router on a small UPS as the first backup power step for any Nepal home, before investing in a larger inverter setup.
The Netra S8 at NPR 3,199 has the lowest power draw in the range. A standard 10,000mAh power bank keeps it running for four to six hours, making it the most practical choice when backup power is the main concern.
For outdoor setups, the T5P-Ratri Bullet at NPR 7,999 is built for Nepal’s outdoor conditions from -20°C to 50°C and pairs well with a small solar panel and battery setup at the installation point.
If you want AI human detection and built-in siren alongside backup power flexibility, the Ratri G11 at NPR 8,499 covers all of that on the same low-power USB supply. For a comparison of all AI features across the range, the AI CCTV camera guide for Nepal breaks down which camera suits which situation.
All models are available through authorized NV NightVision dealers across Nepal.
How Long CCTV Storage Lasts on Backup Power
When a camera switches to battery or UPS power, it keeps recording to its SD card exactly as normal. The storage itself is not affected by the power source. How long that storage lasts before it fills depends on your recording settings.
Continuous 4MP recording fills a 128GB card in roughly three to four days. Event-based recording triggered by human detection or motion can stretch the same card to several weeks. During a power cut when backup runtime is limited, switching to event-based recording means your camera uses less power and records longer on the same battery.
For the full storage breakdown by camera model and SD card size, the CCTV camera storage duration guide covers all recording modes in detail. If you’re also thinking about what to do with footage from before an incident, the guide on how long CCTV footage is kept covers retention periods and how to delete recordings safely.
Conclusion
If your CCTV system currently goes dark every time load shedding hits, that gap in coverage is worth closing now rather than after an incident.
Start with the simplest step: put your camera and router on a small UPS. For most Nepal homes, that single change means continuous recording through typical load shedding periods with no further investment. If you have a larger setup or need outdoor coverage, the full NV NightVision product range includes models suited to every backup power situation from basic USB battery backup to full solar installation.
If you’re not sure which camera or setup is right for your home, contact the NV NightVision team directly or visit your nearest authorized dealer for a recommendation based on your location and power situation.
A camera that stops recording when the lights go out isn’t protecting much.
Frequently Asked Questions
Can CCTV cameras be used to record during an outage of power?
It is true that some CCTV cameras are able to continue recording in the event of a power cut, but they must have a backup power source. Cameras that are powered by batteries or solar energy can continue to operate without electricity. The traditional wired system will stop recording without a backup power source.
How long can an IP camera system operate without electricity?
The duration of a CCTV without electricity is dependent on the backup system used. A UPS could last for a few minutes or a couple of hours, while an inverter with batteries can operate for several hours. Models of battery-powered cameras differ, while solar systems can be set up to run continuously.
Does my CCTV system need a backup power supply?
A backup power source for your CCTV system is highly recommended. It is essential to have a backup power source, as your cameras and recording equipment will not work during a power cut, leaving you without surveillance. Backup solutions, such as UPS, solar systems, or inverters, help to provide uninterrupted security coverage.
Can CCTV cameras record during a power cut?
Some can. Battery-powered cameras and solar cameras keep recording through any power cut without additional setup. Standard wired and wireless cameras connected to mains adapters stop when the power goes unless they are connected to a UPS, inverter, or battery backup. Adding a small UPS is the simplest fix for most home setups.
How long will a UPS keep a CCTV camera running?
A mid-range 600VA UPS typically gives 30 to 90 minutes of runtime for a single camera and router. For a multi-camera setup with an NVR, a larger UPS or inverter with an external battery bank is a better choice. Runtime depends on the total power draw of all connected equipment.
Do I lose recorded footage during a power cut?
No. Footage already stored on an SD card, DVR, or NVR is not lost when power goes out. Files stay intact and are accessible once power returns. The only footage lost is the recording gap during the outage itself if no backup power is in place.
Can a phone power bank run an NV NightVision camera?
Yes. All NV NightVision cameras use 5V DC USB power. A standard 10,000mAh power bank can keep a single camera running for four to six hours depending on the model and recording mode, making it a practical emergency backup option.
Does the WiFi router need to stay on for the camera to keep recording locally?
No. If the camera has an SD card, it keeps recording locally even if the router loses power. You lose the ability to view footage remotely and receive phone alerts until the router comes back online, but local recording continues without interruption.
What is the best backup power solution for CCTV in Nepal?
For most Kathmandu homes and small shops, a UPS covering the camera and router is the easiest and most cost-effective starting point. It handles typical load shedding windows without any manual involvement. For longer outages or multi-camera setups, an inverter with a battery bank gives more runtime. Solar is the best option for outdoor cameras or locations with unreliable grid access.
Is solar CCTV worth it during Nepal’s monsoon season?
Yes, with the right battery storage. Most solar camera setups include enough battery capacity to run through two to three days of heavy cloud cover. Monsoon season reduces charging hours but doesn’t eliminate solar viability. Pair a solar panel with a battery that covers at least 48 hours of camera runtime to get reliable year-round coverage.
How does load shedding affect CCTV camera lifespan?
Frequent power cycling from load shedding without a UPS can stress camera components over time, particularly the power adapter and capacitors. Running cameras on a UPS with surge protection reduces this wear. Cameras that go through regular full power cuts and restarts without surge protection tend to develop faults earlier than those on stable power.