iHealth Guco (BG5) - Are measurements stored in memory lost when the battery is discharged? Sylvain 17 April 2020 14:29 Updated Follow No. Offline measurements are saved in memory even when the battery is completely discharged. Related articles iHealth Guco (BG5) - Can I take a measurement while the battery is charging? iHealth Guco (BG5) - How many measurements can I make with a fully charged battery? iHealth Guco (BG5) - Bluetooth connection troubles iHealth Guco (BG5) - I am unsure about the accuracy of the results obtained. What should I do? iHealth Guco (BG5) - I get an error ErE while the expiry date on the vial has not been passed. Why? Comments 0 comments Please sign in to leave a comment.