Barry W asks > How does one go about replacing the battery if it has been used? Does it have to go to a service agent or canit be done by oneself. Also what about price to replace battery.(My old GME epirb could not be fitted with a new battery it had to be exchanged for a refurbished one. Response: You will need to contact the retailer or better still, the actual manufacturer of the unit to find out what their respective process is. Many have authorised ...