I purchased a used Phantom 2 Vision Plus recently and it included 2 batteries. There was a Phantom Knowledge DVD that came with it which I followed to perform all updates. When I attempted first flight I encountered a problem. The drone will take off but the battery drain starts falling about 1% every 10 seconds. By the time it reaches about 80% it drops even more rapid and with less the 5 minutes total flight time it reports critical level and flashes the lights in warning, so I land. Both batteries exhibit the same problem. Prior to flight, the software reports the following
Battery 1
Design Capacity 5200 mAh
Full Capacity 5200 mAh
Current Capacity 5163 mAh
Percent of Charge 99
Percent of Life 98
Discharge Times 8
Temp 23.3
Cell 1 Voltage 4128
Cell 2 Voltage 4154
Cell 3 Voltage 4146
Battery 2
Design Capacity 5200 mAh
Full Capacity 5000 mAh
Current Capacity 4971 mAh
Percent of Charge 98
Percent of Life 99
Discharge Times 3
Temp 23.3
Cell 1 Voltage 4165
Cell 2 Voltage 4033
Cell 3 Voltage 4147
I have drained the batteries to the 8% level then recharged as suggested for every 20 cycles. Still had the issue.
I considered purchasing new batteries, but I wondered can the software report the battery condition as favorable as this and the battery still be bad?
Or is there a problem with the drone? If so is there a way to correct the problem?
Battery 1
Design Capacity 5200 mAh
Full Capacity 5200 mAh
Current Capacity 5163 mAh
Percent of Charge 99
Percent of Life 98
Discharge Times 8
Temp 23.3
Cell 1 Voltage 4128
Cell 2 Voltage 4154
Cell 3 Voltage 4146
Battery 2
Design Capacity 5200 mAh
Full Capacity 5000 mAh
Current Capacity 4971 mAh
Percent of Charge 98
Percent of Life 99
Discharge Times 3
Temp 23.3
Cell 1 Voltage 4165
Cell 2 Voltage 4033
Cell 3 Voltage 4147
I have drained the batteries to the 8% level then recharged as suggested for every 20 cycles. Still had the issue.
I considered purchasing new batteries, but I wondered can the software report the battery condition as favorable as this and the battery still be bad?
Or is there a problem with the drone? If so is there a way to correct the problem?