How long do the batteries last in my locks?

33 Lock battery life typically ranges from 6 to 12 months at minimum, depending on usage frequency and environmental conditions such as temperature and humidity. When battery levels begin to run low, the lock provides advance low-battery alerts, allowing time to replace batteries before functionality is impacted.

For optimal performance, always use high-quality alkaline batteries. All batteries installed in the lock should be the same brand, type, and age. Do not mix new and old batteries, as this can cause inconsistent performance, battery leakage, reduced reliability, or a shortened overall battery lifespan.