Trolling Motor Runtime Calculator: How Long Does A Trolling Motor Battery Last? Lithium Battery Zone, December 15, 2024May 13, 2025 Whether you’re an avid angler or a recreational boater, knowing how long your trolling motor will run is crucial for a safe and successful day on the water. Our Trolling Motor Runtime Calculator helps you accurately estimate your battery life based on your specific setup and usage patterns. Trolling Motor Runtime Calculator Calculate how long your trolling motor battery will last based on your specific setup and usage patterns. Battery Configuration Select a Common Battery Setup… Group 27 (100Ah 12V) Group 31 (120Ah 12V) Dual Group 27 Series (100Ah 24V) Dual Group 31 Series (120Ah 24V) Dual Group 27 Parallel (200Ah 12V) Dual Group 31 Parallel (240Ah 12V) Battery Amp Hours: ℹ️ Higher Ah rating means longer runtime Battery Voltage: 12V 24V 36V Motor Usage Select a Common Motor Setup… 30lb Thrust (12V) 45lb Thrust (12V) 55lb Thrust (12V) 80lb Thrust (24V) 112lb Thrust (36V) Average Motor Draw (Amps): ℹ️ Typical usage is 20-50% of max draw Usage Pattern: Continuous Use Frequent Use (75%) Moderate Use (50%) Light Use (25%) Calculate Runtime Estimated Runtime Usage Details Tips to Extend Runtime List of the Best Trolling Motor Battery: Image Product Rating OGRPHY 36V Lithium Trolling Motor Battery Best Choice 5/5View On AmazonlabelLOSSIGY 36V Lithium Trolling Motor Battery 4.5/5View On AmazonlabelCHINS Lithium Trolling Motor Battery 4.5/5View On Amazonlabel Understanding Trolling Motor Runtime Trolling motor runtime depends on several key factors: Battery capacity (Amp Hours) Motor current draw Battery voltage Usage patterns Environmental conditions How to Use the Calculator? Step 1: Battery Configuration Select battery setup from presets or enter custom values Battery capacity in Amp Hours (Ah) System voltage (12V, 24V, or 36V) Common Battery Configurations: Single 12V Battery (Group 24-31) Dual 12V Series (24V system) Dual 12V Parallel (increased capacity) Triple 12V Series (36V system) Step 2: Motor Usage Enter average motor draw in Amps Select usage pattern: Continuous use Frequent use (75%) Moderate use (50%) Light use (25%) Understanding Results Runtime Calculation The calculator considers: Usable battery capacity (80% of rated) Average current draw Usage pattern System efficiency Interpreting Results Estimated runtime Power consumption Usage details Recommended improvements Common Configurations 12V Systems Entry Level 55lb thrust motor Single Group 27 battery Typical runtime: 2-4 hours Medium Duty 55-70lb thrust motor Dual parallel batteries Typical runtime: 4-8 hours 24V Systems Standard Setup 80lb thrust motor Two batteries in series Typical runtime: 3-6 hours Extended Range 80-112lb thrust motor Two series pairs in parallel Typical runtime: 6-12 hours 36V Systems High Power 112lb+ thrust motor Three batteries in series Typical runtime: 4-8 hours Enjoyed this trolling motor runtime calculator? Then be sure to check out our other lithium battery guides. Best 48V Lithium Battery for Golf Cart Best 36V Lithium Battery for Golf Cart Best 36 Volt Lithium Trolling Motor Battery Best 12V 100Ah Lithium Battery For Trolling Motor Best 24 Volt Lithium Trolling Motor Battery Best Trolling Motor Battery for 80 lb Thrust Best 1000 Watt Solar Generator Best Level 2 EV Charger for Home Best 80 Amp EV Charger Best Lithium Battery for Boats Lithium Battery Knowledge Trolling Motor Battery batterylithiumTrolling