Wired vs battery cameras in a Calgary winter
·7 min read
Battery cameras are the easiest security purchase in the world to make. No wiring, no electrician, stick it to the wall and pair it with your phone. In a Calgary January, they are also where a lot of people discover what they actually bought.
This isn't a knock on any particular brand. It's chemistry.
What cold does to a battery camera
Lithium-ion cells lose usable capacity as temperature drops, and the effect is steep well before you reach the temperatures we get here. A camera advertised as lasting months between charges in a mild climate can need recharging in a fraction of that during a cold snap — and the coldest weeks are exactly when you least want to be out on a ladder retrieving it.
There's a second effect people don't anticipate. Many battery cameras conserve power by sleeping until motion wakes them. Waking, connecting to Wi-Fi and starting to record takes a moment. In warm weather that lag is a nuisance — you get the back of someone leaving. In deep cold, with a weakened battery and a struggling radio, it gets worse. The most common complaint we hear isn't "my camera died", it's "my camera recorded, but not the part I needed."
Wire-free is genuinely the right answer in some places. A detached garage with no practical cable path, a rented property, a temporary need. But it should be a considered trade, not the default.
What wired PoE does differently
PoE — Power over Ethernet — sends power and data down a single cable. One run per camera, back to a switch and a recorder.
What that buys you:
- It's always on. No sleep, no wake-up delay, no seasonal battery decline. It records continuously if you want it to, which means you have the thirty seconds before the event as well as after.
- It doesn't depend on Wi-Fi. Your camera at the far corner of the lot isn't competing with everything else for signal through two exterior walls.
- Recording stays home. With a local recorder, footage lives on your property. No monthly fee to retain it, and no dependence on someone else's cloud to get it back.
- Nothing to service. No ladders in February.
The cost is the cable. If walls are open, that's minor. If the house is finished, it varies from straightforward to genuinely awkward depending on the route.
The Calgary-specific bits
Temperature range matters more than the marketing number. Equipment specified for a mild climate can be technically outdoors-rated and still unhappy at −35 with wind. Worth checking the actual operating range rather than the word "weatherproof".
Winter is dark. Our useful daylight in December is short, so a great deal of what your cameras see is in near-darkness. How a camera performs at night matters far more here than its daytime resolution. Infrared range, low-light sensitivity and whether there's any useful ambient light at that spot are the things to ask about.
Snow changes the picture. Fresh snow reflects infrared straight back at the lens and can wash out the image. Mounting position and angle — under a soffit, out of driving snow, not aimed flat at a white surface — does more for winter usefulness than paying for a higher-resolution sensor.
Doorbells are their own case. A wired video doorbell draws from the existing chime transformer and sidesteps most of the battery problem. If you have an existing doorbell, you very likely already have the wire.
If your house is already finished
You have more options than "battery or nothing."
Cable can often be run through an unfinished basement ceiling and out through a rim joist, which reaches most of the ground floor exterior without touching finished walls. Soffits frequently offer a path along the eaves. If a previous system left cable behind — even old coax — it can sometimes be reused rather than replaced.
It's genuinely worth having someone look at the house before concluding that wiring is impossible. Often two or three of the important positions are easy and only one is hard, and a mixed approach — wired where it counts, battery at the awkward outbuilding — is a perfectly good outcome.
The short version
For the positions that actually matter — front door, driveway, the approach to the house — wired is the better long-term answer in this climate, and the gap widens in the exact conditions where you're relying on it most.
If you want an opinion on what's practical at your address, get in touch and we'll tell you honestly which runs are easy and which aren't.