- Most home security systems draw 5-20W continuously - a tiny load any power station handles indefinitely
- The critical requirement is UPS mode with fast switchover - security systems must stay online seamlessly
- A 500Wh station runs a typical security panel, cameras, and router for 24+ hours
- Cellular backup on security panels is more reliable than internet-dependent monitoring during outages
- Pair the security backup with router/modem backup - monitoring is only useful if the panel can communicate
A security panel, cameras, and router draw 40-80W combined. A 500Wh station covers 6-12 hours in UPS mode. Switchover must be under 30ms or the panel detects an interruption. Pair the security backup with router and modem - monitoring is useless if the panel can't communicate.
The Irony Nobody Talks About
Most home security systems plug directly into the wall with zero battery backup beyond a small internal cell that lasts 4-8 hours. The very events that most threaten your home - storms, major outages, civil unrest - are also the events that disable your cameras and alarm system first.
This is a solvable problem. Security systems are among the lowest-draw devices in your home. A full camera system with NVR recorder, router, and alarm panel typically draws 60-120W combined. A 500Wh power station runs the entire system for 4-6 hours. A 1,000Wh unit covers most multi-day outage scenarios comfortably.
What Your Security System Actually Draws
| Component | Typical Draw | Notes |
|---|---|---|
| IP Camera (wired PoE) | 3–12W each | Per camera, powered by NVR or switch |
| IP Camera (wireless) | 2–8W each | Via base station or directly |
| NVR Recorder (4-8 channel) | 15–40W | Higher with internal hard drives spinning |
| DVR Recorder | 20–45W | Older analog systems draw more |
| Alarm Panel + Sensors | 5–15W | Has internal battery but needs AC to charge |
| Router/Modem | 15–25W | Critical for remote monitoring alerts |
| Smart Doorbell (hub) | 3–8W | Wired versions need continuous power |
| Full System (4 cameras + NVR + router) | 60–120W total | Most residential setups fall in this range |
The UPS Requirement for Security Systems
Security systems have a specific requirement that differs from most backup power applications: the transition from grid power to battery must be completely seamless. A 30-second gap while you manually switch to backup power means 30 seconds of camera downtime - which is long enough to miss a break-in in progress.
Set up your power station in permanent pass-through UPS mode with the entire security system - NVR, router, and alarm panel - plugged into it. When grid power fails, the station switches to battery in under 30ms. Your cameras never stop recording. Your alarm panel never loses connection. Your router stays online so remote alerts keep working.
If you rely on smartphone alerts from your security cameras, your internet connection must stay up during the outage. Include your modem and router on the same backup power setup as the NVR and cameras. Without internet, your cameras may still record locally but you won't receive any remote alerts.
Alarm Panel Backup: What's Already Built In
Most hardwired alarm panels have a small internal battery - typically 4-12Ah sealed lead acid - that provides 4-24 hours of backup depending on the panel and how many sensors are connected. This internal battery handles brief outages but depletes quickly during extended events.
The alarm panel's internal battery needs AC power to stay charged. If your panel loses AC power for more than a day or two, the internal battery depletes and the panel loses backup capability. Keeping the panel plugged into your backup power station ensures the internal battery stays topped up throughout the outage.
One thing most homeowners don't realize: many alarm panels send a low-battery alert to your monitoring company when they detect power loss. If you have professional monitoring, this alert may trigger a welfare check call. Be aware that extended outages in your area may generate this alert - you can typically dismiss it by calling your monitoring company.
Smart Lock and Access Control Backup
Hardwired smart locks and access control panels need continuous power to operate their motorized bolts and electronic keypads. Most battery-powered smart locks are unaffected by power outages since they run on internal batteries - but hardwired locks with electric strikes or magnetic locks fail in the unlocked position when power is cut.
If you have a hardwired electric strike or magnetic lock on an entry door, it needs to be on your backup power system. These typically draw 3-12W each. Failing to back them up means doors that were electrically secured become physically unsecured the moment power fails.
Product Recommendations
For a typical 4-camera system with NVR, router, and alarm panel drawing around 80W combined, the River 2's 256Wh provides approximately 3 hours of seamless backup - enough to cover most brief outages. The 20ms UPS switchover means your cameras never miss a frame. At 7.7 lbs it sits neatly in a closet or utility room next to the NVR. For extended outage coverage, step up to the Delta 2.
At 1,024Wh the Delta 2 provides 10+ hours of security system backup for a typical 80W setup - enough for most multi-day outage scenarios. The 20ms UPS switchover is the fastest in the category. If your security system also serves as part of a broader home backup setup covering lights and device charging, the Delta 2 handles the combined load easily. Eco-mode can be fully disabled through the app to prevent any auto-shutoff risk.
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Frequently Asked Questions
How do I keep my security system running during a power outage?
Connect your security system's power supply and your router/modem to a portable power station in UPS mode. The station must have eco-mode disabled and a fast switchover time (under 30ms) so the security panel doesn't detect a power interruption and trigger alerts.
How long will a power station run a security system?
A typical security panel draws 5-15W, cameras 5-10W each, and a router 15-25W. Total draw of 40-80W means a 500Wh station provides 6-12 hours. A 1,000Wh station covers 12-24 hours. Most residential outages resolve within this window.
Do security cameras work without internet during an outage?
Local storage cameras (NVR/DVR systems) continue recording to hard drives without internet. Cloud-connected cameras lose their remote viewing capability but may continue local recording. Some cameras have onboard SD card storage as a backup. Check your camera system's specifications.
What backup power does ADT or other monitoring companies recommend?
Most professional monitoring companies recommend a UPS or power station keeping the panel and communication module powered. The panel itself often has a small internal battery for 4-24 hours. For extended coverage, an external power station on the panel's power supply is the standard approach.