Nigel_
Second Officer
Flight distance : 388642 ft
United Kingdom
Offline
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They should be OK, lithium batteries can last 10 years, but it is wise to be very careful until they have proven themselves.
Charge them to full, leave them for a day, check that the voltages on the cells are all reasonably close (green), then discharge them with the motors running on the ground down to 8%, check the voltages between cells are still all reasonably close.
If any of the voltages don't match then maybe repeat the test a few times to see if they will recover and match up.
If they do match then you should be OK, but P3s do sometimes fall out of the air with battery problems so I wouldn't discharge them in the air by more than 50% for a few flights while watching the voltages.
Remember that the % may not be correct for the first few flights, never let the voltages reach 3V on any cell, by then it will be too late to land. |
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