Technical, Techniques, Hints, and Tips > DC Motors (Brushed) and Speed Controllers

What battery life to (very roughly!) expect

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colh107:
24" 'sport' boat, bout 1.5kg, basic stock 540 motor. Hopefully planing!
I'm planning to use a 2S LiPo, but wondering what capacity to go for.
How long would e.g. 4Ah last? Not looking for a detailed answer obviously, just a 'gut feel' from those with the experience. Thanks.

unbuiltnautilus:
35mm prop, direct drive, about fifteen to twenty five minutes, depending on the 540.

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