How often should VHF radio batteries be replaced?

The recommendation to replace VHF radio batteries at least every 2 years or as specified by the manufacturer is based on ensuring reliability and safety in maritime communication. Batteries can degrade over time due to factors such as frequency of use, storage conditions, and overall age. Regular replacement helps to ensure that the battery holds sufficient charge and functions properly when needed, which is crucial in emergency situations on the water.

Manufacturers typically provide guidelines based on testing of their products, leading to the suggestion to regularly check and replace batteries to maintain optimal performance and safety. While some may argue that batteries should only be replaced when they fail, this approach could leave operators at risk of having a non-functional radio at a critical moment.

Therefore, adhering to a schedule of replacement at least every 2 years or following the manufacturer's recommendations is considered best practice to ensure reliable communication capabilities from VHF radios on vessels.