EVO Nano Series User Manual

protection will be activated. The battery will automatically discharge to a safe level, and this
discharging process takes 2~3 days. In this period, it is normal that the battery may be slightly
hot.
2) Low battery protection: in the case of low battery level, the battery will automatically enter
sleep mode to avoid damage. Under this mode, there will be no reaction when pressing the
power button. To wake up the battery, it is allowed to connect it with charger.
3) Charging temperature protection: the battery will stop charging in the case of charging
temperature lower than 5ºC (41ºF) or higher than 45ºC (113ºF).
4) Overcurrent protection: the large charging current will seriously damage the battery, so the
battery will stop charging in the case of excessive charging current.
5) Overcharge protection: the battery will automatically stop charging after it is fully charged.
6) Balanced protection: each battery unit shall maintain voltage balance to avoid overcharge
or overdischarge.
7) Overdischarge protection: the battery will automatically disconnect the power output
function when it is not used and completes the self-discharge period. This function is disabled
in flight.
8) Short-circuit protection: the power supply will be disconnected once the short circuit is
detected.
9) Power-down mode: the battery will turn off if there is no operation within 30 minutes.
10) Communication: during use, the aircraft will be continuously synchronous with battery to
provide the real-time information, including voltage, capacity, current, and temperature.
11) Low power consumption mode: the battery will enter the low power consumption mode
when the battery level is lower than about 8% to reduce the own power consumption. To
recover the battery from the low power consumption mode, it shall be activated by charger.
2.3.3 Precautions
1. Use
 Please be sure to turn off the aircraft power before installing or disassembling aircraft
battery.
 It is only allowed to use the battery and charger sold or authorized by Autel Robotics for
EVO Nano series. The use of any unapproved battery or charger may cause fire,
explosion, leakage or other dangers. Autel Robotics will assume no responsibility for any
consequence of using the battery or charger of third party.