inputs.text: spot replacehement reasonable price - doityourselfer perfect replacehement battery came original garmin forerunner 305 installed mine works perfectly look forward getting another 3 years use watch said not simple replacehement first break open case form small pry bar wear heavyduty protective glove thank later bar slips cut old wires twistsolder wires replacehement battery wrap wires electrical tape reassehemble reglue case back together reworked case probably not look good coming box unless master technician fairly well done video youtube illustrates process followed performed repairif not doityourselfer garmin send refurbished watch new battery around 80 go website details