How do the batteries hold up in cold weather? Say an unheated garage in Canada? -20 Celsius for a few months. How often should I plan on changing/charging.

How do the Gen 2 accessory batteries hold up in cold weather? Say an unheated garage in Alberta? -20 Celsius for a few months. How often should I plan on changing/charging.

Cold temperatures can significantly impact battery performance, especially in extreme conditions like -20°C. Here’s a general idea of how each type of battery might fare and how often you might need to check or replace them:

1. Contact Sensor (Gen 2) - 2 x 2450 3V Lithium Coin Batteries:

   • Performance in Cold Weather: Lithium coin batteries generally perform well in cold temperatures compared to other types. However, at -20°C, you might see a reduction in battery life.
   • Expected Lifespan: Under normal conditions, these batteries might last 2-3 years, but in extreme cold, you might need to check them more frequently, potentially every 6-12 months.

2. PIR Motion Sensor (Gen 2) - 2 x AA Batteries:

   • Performance in Cold Weather: AA batteries, especially non-lithium types, can be significantly affected by cold temperatures, leading to reduced capacity and shorter lifespan.
   • Expected Lifespan: Normally, AA batteries might last 1 year, but in -20°C, their life could be shortened to 3-6 months. Lithium AA batteries are more cold-resistant and might last closer to the upper end of this range.

3. Remote Control (Gen 2) - 1 x CR2032 Lithium Coin Battery:

   • Performance in Cold Weather: CR2032 batteries, being lithium, handle cold temperatures relatively well, but performance still drops in extreme cold.
   • Expected Lifespan: Typically, these batteries last 1-2 years under normal conditions, but you might need to check them every 6-12 months in very cold conditions.

4. Wireless Strobe Siren (Gen 2) - 3.7V 500mAH Built-in Lithium Battery:

   • Performance in Cold Weather: Built-in lithium batteries are generally designed to perform in a wide range of temperatures, but their efficiency can drop in extreme cold.
   • Expected Lifespan: Since this is a rechargeable battery, it’s more about the battery's performance rather than a set lifespan. Regularly checking the charge level and ensuring it stays within operational limits is important. Charging frequency may increase due to reduced efficiency.

Recommendations:

• Monitor Battery Levels: Regularly check the battery levels in these devices, especially during and after extended periods of cold weather.