Battery Life Equation:
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The battery life of a trolling motor refers to how long the battery will last powering the motor before needing to be recharged. It's a crucial factor for planning fishing trips and ensuring you don't get stranded.
The calculator uses the battery life equation:
Where:
Explanation: The equation calculates how many hours the battery can supply the required power to the motor before being depleted.
Details: Knowing your battery life helps prevent being stranded on the water, allows for better trip planning, and helps in selecting the right battery for your motor.
Tips: Enter battery capacity in Ah (typically 50-100Ah for marine batteries), voltage (usually 12V, 24V, or 36V for trolling motors), and motor power in watts (check motor specifications).
Q1: Is this calculation accurate for real-world use?
A: This provides theoretical maximum. Actual runtime may be 10-30% less due to battery age, temperature, and motor efficiency.
Q2: What's a typical battery life for trolling motors?
A: With a 100Ah battery and 30lb thrust motor (about 300W), expect 4-5 hours at full power.
Q3: How can I extend my battery life?
A: Use lower power settings when possible, maintain batteries properly, and consider lithium batteries for better performance.
Q4: Should I factor in battery depth of discharge?
A: Yes, lead-acid batteries shouldn't be discharged below 50% regularly for longest life.
Q5: What about multiple batteries?
A: For batteries in parallel, add their Ah ratings. For series, voltage adds but Ah stays the same.