The battery life of a MiniMed insulin pump can vary depending on the specific model and the user's pump settings. Generally, most MiniMed pumps use a lithium-ion battery that typically lasts around two to three days before needing replacement or recharging. Factors such as the frequency of bolus deliveries, continuous glucose monitoring usage, and other personalized settings can affect battery life. It is important for users to periodically check the battery level displayed on their pump to ensure it is functioning properly. For the latest information regarding specific models and guidelines, it is recommended to visit the official MiniMed website, where detailed product specifications and support resources are available.