⚡ ABYC E-11 Dedicated Estimator

300Ah Lithium Battery Trolling Motor Runtime Calculator

For electric cruisers, houseboats, and multi-day wilderness expeditions, 300Ah battery banks provide massive energy reserves. Model your runtime at cruising speeds.

⚡ Instant Estimator

Trolling Motor Battery Runtime Calculator

ABYC E-11 Compliant

1. System Voltage

2. Motor Thrust & Max Amp Draw~50A Max Draw

Custom Max Amps:(Overrides thrust preset)

3. Battery Chemistry & Usable Depth of Discharge (DoD)

Lithium (LiFePO4)100% Usable Capacity

AGM / Lead-Acid50% Safe Usable DoD

4. Battery Capacity (Amp Hours / Ah)100 Ah

20 Ah50 Ah100 Ah (Standard)200 Ah300 Ah

5. Motor Throttle / Speed Level50% Speed (Cruising)

10% (Trolling)25% (Slow)50% (Cruising)75% (Fast)100% (WOT Max)

Estimated Continuous Runtime

Current Draw:-- Amps

Usable Capacity:-- Ah

Continuous Power:-- Watts

Safe Reserve Left:--

Runtime Across All Speeds

Speed 1 (25% Throttle)-- hrs

Speed 2 (50% Cruising)-- hrs

Speed 3 (75% Fast)-- hrs

Speed 4 (100% WOT)-- hrs

🛠️ Recommended Electrical Setup

• Circuit Breaker: 60A Marine Rated
• Minimum Cable Size: 6 AWG (under 10ft)
• Wire Material: Tinned Marine Copper (ABYC BC-5W2)

Frequently Asked Questions

How long will a 300Ah battery run a 55lb motor at full throttle?

At continuous wide-open throttle (drawing 50 amps), a 300Ah lithium battery will power the motor for approximately 6 full hours non-stop.