The two original equipment batteries that came with my EVO 1 when it was new—nearly a year and a half ago—are now triggering "Battery Damaged" messages. They both started doing this within a couple weeks of each other. A newer third battery I bought later is still giving me over 20 minutes flight time. I'm wondering if this is simply the normal lifespan for these two original batteries and replacement is due ? Do these voltages look typical for batteries of this age and number of discharges?
Here are cell voltages when fully charged + number of recorded discharges:
Battery 1
4.254 4.268 4.265
115 discharges
Displays "Battery Damaged" message a few seconds after motor start-up.
Battery 2
4.279 4.289 4.284
110 discharges
EVO will take off and fly for about 5 minutes with this battery, then displays "Battery Damaged" and triggers RTH mode.
Here are cell voltages when fully charged + number of recorded discharges:
Battery 1
4.254 4.268 4.265
115 discharges
Displays "Battery Damaged" message a few seconds after motor start-up.
Battery 2
4.279 4.289 4.284
110 discharges
EVO will take off and fly for about 5 minutes with this battery, then displays "Battery Damaged" and triggers RTH mode.