This version of AltimeterThree comes equipped with a piggyback battery bonded to its back surface that extends its running time from 5 hours to over 24 hours in Kite Mode (altitude samples once per second).
Recharges in any USB port using the same Micro-B cable as a normal AltimeterThree (but takes 5 times longer to charge, or about 6 hours).
This is a special-order item which requires up to a week to prepare.
Note: probably not suitable for max duration faster-rate flight modes which would create very large datasets larger than most mobile devices can conveniently handle. We recommend Kite Mode (1 sample/sec altitude, acceleration sensing disabled) or Raptor Mode (2 sample/sec, acceleration sensing disabled) for flights longer than 3 hours.
Weight: 23 grams (0.8 ounces)
Dimensions: 70mm x 23mm x 18mm (2.75″ x 0.9″ x 0.75″)