s the GFC 500) (190-01112-12). See also G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft (includ NOTE Garmin recommends G5 Software Version 8.00 (Garmin STC Service Bulletin 22011) that provides improved detection and indication of G5 backup battery failure.. To purchase a replacement battery, see you Garmin dealer or the Garmin website. Contact your local waste disposal department to dispose of the device and battery in accordance with applicable local laws and regulations.
The Garmin G5 backup battery lasts about 4 hours during emergency operations using a rechargeable lithium-ion pack. This battery pack keeps the device. Have you checked " (2022) Service Bulletin 22013 Rev A: G5 Backup Battery Discharge" to see if your unit is affected? A large number of early G5 units had an idle battery discharge issue which is fixed by this service bulletin. Unfortunately, I think the freebie fix offered by Garmin expired last February. My G5s were affected, and I complained to Garmin for over a year until this SB was.