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Battery Sizing for UAV

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Size a UAV battery pack from target endurance, average electrical power, nominal voltage, reserve margin, and continuous C-rating.

W
min
V
%
C

Battery requirement

Required capacity

6.33 Ah

6,334 mAh

Pack energy

140.6 Wh

112.5 Wh usable

Average current

20.27 A

at nominal voltage

Reserve reduces usable mission energy

Required pack energy

140.63 Wh pack

6.33 Ah
usable mission energyreserve
capacity

6,334 mAh

current

20.3 A

C max

63.3 A

C-rating headroom

2.13

63.3 A available for 20.3 A average.

Continuous-current check

Adequate

Compares C-rating current with average current only.

Open Source and Easy to Use Elsewhere

This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.

Open source: review the implementation and see how the results are produced.

Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.