The X2 controller has a non-replaceable 3V CR2032 lithium battery installed directly on the circuit board. The controller will immediately enter hibernation mode when AC power is unavailable. The battery backup keeps the current date and time during power outage conditions. The battery will last for approx. 5 years.
With a non-replaceable backup battery, WAND Wi-Fi module is the perfect upgrade option as the date and time are automatically synced over the internet via Hydrawise software. WAND Wi-Fi module provides access to X2 irrigation schedule and settings from anywhere in the world and saves up to 50% water usage based on hyperlocal online weather data. Learn more.