Wi-Fi-enabled video doorbell is a good choice for homeowners who decide to remodel their houses but do not want to spend much time and efforts going through the complex wiring. What makes them an even better choice is the handful of security functions that let users stay updated about what is happening at their door and communicate with visitors at any time of day and night.
In our previous article, we already talked about advantages and disadvantages of the electricity-powered doorbells. This time let’s see what is good and bad about their battery-powered counterparts.
The battery-operated doorbell does not require wiring, which makes its installation simple and quick.
Many options for mounting location
What makes it even simpler is the fact that the user is not limited with the certain location. The battery-powered doorbell can replace the original doorbell providing that there is a room to stack the wires. It can also be installed wherever the homeowner feels the view angle will show everything.
Batteries come in different shapes and sizes, which makes it convenient for the manufacturer to choose the battery that will be enough to perform all the required functions and at the same time will help make the size of the doorbell smaller.
Short calendar life
It is most likely that your new doorbell uses Lithium-Ion battery, as this is the most common battery technology found in rechargeable devices.
On average, lifetime of the Lithium-ion battery consist of 1000 cycles (number of charges). This means that these batteries in daily use are not expected to last longer than three years. The problem is the degradation of the battery is strongly temperature-dependent. The repeated exposure to the environmental conditions govern the longevity of lithium-ion batteries.
Sensitivity to low and high temperatures
Lithium-ion suffers from stress when exposed to heat. 30°C (86°F) is considered elevated temperature for most Li-ion batteries and may cause significant power loss in short amount of time. The prolonged exposure to heat may even cause battery deformation, which at best will make it difficult for the user to remove the battery to perform the recharge. At worst, the battery might leak which will damage the doorbell.
According to Battery University, cold temperature increases the internal resistance and diminishes the capacity of a Li-ion battery. Specifically, they estimate that at -18 degrees Celsius (-0.4°F) a Li-ion may only deliver 50% of its capacity.
Dismounting doorbell to recharge the battery
Although the manufacturers made this process as less painful as possible with the doorbell dismounted in seconds, the recharge is time consuming and can results in missing some visits or events at the door.
Bad for environment
Even though the battery-powered doorbells are using the so-called secondary batteries – the ones that can be recharged and used repeatedly - batteries are still identified as a problem material in the waste stream. They are made from a variety of chemicals some of which are extremely toxic, and can cause damage to humans and the environment.