Battery vs wired security cameras

What “wired” means here

A wired camera is any camera that gets power from a cable instead of a battery. That includes a plug-in Wi-Fi camera with a power cord and a PoE camera that gets power and video over one Ethernet cable. A wired camera may still send video over Wi-Fi. A battery camera, by contrast, runs from a rechargeable pack and usually sleeps until its motion sensor wakes it. If you are weighing Ethernet-based systems against plug-in Wi-Fi models, read PoE vs Wi-Fi security cameras next.

When a battery camera is the right choice

Battery cameras fit places that power cannot reach and homes where you cannot modify the building. You can mount one on a porch post, a fence or a shed wall, and move it later without patching holes. They also keep working during a power outage as long as your router does.

The price is upkeep. How long a charge lasts depends on how often the camera triggers, how much you use live view, how strong the Wi-Fi is and the weather. A camera that watches a quiet side door will last far longer than one that watches a busy street. Cold also matters: Battery University reports that a battery giving full capacity at 80°F typically delivers only about half of it at 0°F, and the capacity returns when the cell warms up. Outdoors in a cold climate, expect to recharge more often in winter, and check the temperature range on the spec sheet.

• Use motion zones and a longer cool-down between clips to cut wake-ups.
• Mount it where it can be reached. A camera at 9 ft that needs a ladder is a camera you will recharge late. See where to place security cameras for height and angle.
• Buy a spare battery if the model offers one, so you can swap instead of waiting for a charge.
• Consider solar only for a sunny spot with low activity.

When a wired camera is the right choice

Wired cameras suit the spots you care about most: the front door, the driveway, the back entry. They stay awake, so live view opens quickly and the recording can include the moments before an event. They can record continuously to a microSD card, an NVR or a network drive, which a sleeping battery camera cannot do. Use the storage calculator to size the card or drive, and read security cameras with no monthly fee for storage options.

The costs are different. A wired camera uses a small amount of electricity. For example, a camera that draws 5 W all year uses 5 × 8,760 ÷ 1,000 = 43.8 kWh, which is about $8 at 18¢/kWh, close to the EIA’s 2026 residential forecast of 18.2¢. The DOE energy formula is watts × hours ÷ 1,000, and you can run your own numbers in the device energy cost calculator. The bigger cost is the work of getting power to the camera.

Powering a wired camera safely

Do not leave an indoor extension cord running through a door or window as a permanent solution. ESFI notes that an extension cord is a temporary solution and is not meant to be used as a long-term extension of your home’s electrical system. Outdoors, use a cord marked with a “W” for outdoor use, keep connections off wet ground and follow the camera maker’s instructions. If you need a new outlet near the camera, hire a licensed electrician and follow local code. Turn off power at the breaker before any work on line-voltage wiring.

Combining both, and protecting either type

Many homes use both: wired cameras at the doors and garage, and a battery or solar camera on the shed or fence. In either case, the FTC advises changing the default password, turning on two-factor sign-in, updating firmware and limiting who can view the feed. A camera that is easy to mount is also easy to forget; set a reminder to check battery level and firmware every month.

Renters should start with the lease. Our guide to installing smart devices as a renter explains what to ask, and a plug-in indoor camera usually raises the fewest issues.