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A. Astral runs for 8 hours on its internal battery under standard conditions. 1 This can be extended to 24 hours with its two optional external batteries. The recharging process takes up to four hours.
A. Yes, by simply using the Astral DC adapter. DC power will also recharge the internal battery when connected. If the external DC power source drops below 11V, Astral will automatically switch to the internal battery to ensure continuity.
A. Yes. The Astral device and the external batteries are approved for use on an aircraft, meeting FAA requirements (RTCA/DO-160, section 21, category M) for all stages of air travel. At least two weeks prior to travelling, we recommend getting clearance from the airline to use your device on a flight (if your approval is in the form of a letter, carry a copy with you).
A. Astral is quiet, with a sound level of 35 dBA. Typical background noise is 30-35 dBA.2
For details about battery–device compatibility, please see the Battery/device compatibility list.
For details about electromagnetic emission by Astral please see the Electromagnetic emissions data sheet.