High Altitude Power Sources

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Presentation transcript:

High Altitude Power Sources What Kind of Battery?

Requirements Temperature Tolerant Lightweight (Energy Dense)

Temperature Vs Altitude

Minimum temperature: -60 degrees Celsius Maximum Weight: 2 Pounds

Lithium Iron Disulfide 297 -40 Lithium Polymer 250 Battery Technology Energy Density wH/kg Mimimum Temperature (Celsius) Lithium Ion 110-160 -20 Lithium Iron Disulfide 297 -40 Lithium Polymer 250 Nickel Metal Hydrate 60-120 -25 Nickel Cadmium 45-80 -20 (Arguably -40) Alkaline 110 -10

Lithium Iron Disulfide 1.5 Volt, 0.2 Pounds x8 12 Volt, 1.6 Pounds -40 Degrees Celsius Operating Temperature

Alternative Methods to Warming Battery Distribute Heat From Hot Electronics Air Flow Use Battery as heat sink http://rcexplorer.se/projects/2013/03/fpv-to-space-and- back/