10 bestDeep Cycle Batteries For Trolling Motorsof July 2025
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1
LiTime 12V 200Ah LiFePO4 Lithium Battery, Built-in 100A BMS, Max. 2.56kWh Energy, Grade A Cells, up to 15000 Cycles, Perfect for RV, Solar, Boat, Marine, Trolling motor, Van, Off-Grid Application
Litime
9.7
11% off
2
Redodo LiFePO4 Battery 2 Pack 12V 100Ah 15000+ Deep Cycle with 100A BMS, Rechargeable Lithium Iron Phosphate Battery, Perfect for RVs, Marine, Solar Home, Camping, Trolling Motors, Off-Grid System
Redodo
9.4
3
ECO-WORTHY 12V 50Ah LiFePO4 Lithium Iron Phosphate Battery Deep Cycle Rechargeable Battery with Built-in BMS, Up to 15000+ Life Cycles, Perfect for Trolling Motor, Golf Cart, Power Wheelchair
ECO-WORTHY
9.2
4
Renogy Deep Cycle AGM Battery 12 Volt 100Ah, 3% Self-Discharge Rate, 2000A Max Discharge Current, Safe Charge Most Home Appliances for RV, Camping, Cabin, Marine and Off-Grid System, Maintenance-Free
Renogy
8.9
5
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery - 3 Pack
Mighty Max Battery
8.6
OtherUp to 6% off
Mighty Max Battery 12V 55Ah Power Boat Pontoon Electric Trolling Motor Deep Cycle Battery
Wilderness Tarpon 100 Kayak Electric Trolling Motor Battery - Replacement for UB12350 Universal Sealed Lead Acid Battery (12V, 35Ah, 35000mAh, L1 Terminal, AGM, SLA)
UPSBatteryCenter® Compatible Replacement 12V 35Ah Battery with Nut & Bolt Terminals for Light Trolling Motor Sevylor Minn Kota - Battery Dimensions: Length: 7.7" (196 mm) x Width: 5.12" (130 mm) x Height: 6.63" (168 mm)
6
OPTIMA BATTERIES 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery
Optima
8.3
7
Renogy 12V 100Ah LiFePO4 Pro Series Smart Lithium Iron Phosphate Battery w/Bluetooth & Self-Heating, 5000+ Cycles, Perfect for Trolling Motor, RV, Camping, Marine, Off-Grid System
Renogy
8.0
8
Optima Batteries D27M BlueTop Group 27 Marine Battery
Optima
7.7
9
12V 35AH Light Trolling Motor Battery Sevylor Minn Kota Golf Cart
Mighty Max Battery
7.4
14% off
10
Redodo 12V 50Ah LiFePO4 Lithium Battery, Built-in 50A BMS, with 4000-8000 Deep Cycles & 10-Year Lifetime, Perfect for RVs, Camping, Boat, Security Devices etc
Redodo
7.1
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A Guide to Selecting the Best Deep Cycle Batteries For Trolling Motors
Choosing the right deep-cycle battery for your trolling motor is essential for a smooth and enjoyable boating experience. Deep-cycle batteries are designed to provide steady power over a long period, making them ideal for trolling motors that require consistent energy. When shopping for a battery, it's important to understand the key specifications that affect performance, longevity, and compatibility with your motor and boat setup. By focusing on these specs, you can ensure you get a battery that matches your needs and maximizes your time on the water.
Battery Type
The type of deep-cycle battery refers to the technology used inside, such as flooded lead-acid, AGM (Absorbed Glass Mat), or lithium. This is important because each type has different maintenance needs, lifespan, weight, and performance characteristics. Flooded lead-acid batteries are traditional, require regular maintenance, and are usually heavier. AGM batteries are sealed, maintenance-free, and more resistant to vibration. Lithium batteries are lightweight, have a longer lifespan, and charge faster, but are more expensive. To pick the right one, consider how much maintenance you're willing to do, how much weight your boat can handle, and how often you use your trolling motor.
Capacity (Amp-Hours, Ah)
Capacity, measured in amp-hours (Ah), tells you how much energy the battery can store and deliver over time. This is crucial because it determines how long your trolling motor can run before the battery needs recharging. Lower capacity batteries (around 50-70Ah) are lighter and suitable for short trips or smaller motors, while higher capacity batteries (100Ah or more) are better for longer outings or larger motors. To choose the right capacity, think about how long you typically use your trolling motor in a single outing and the power draw of your motor.
Voltage
Voltage is the electrical potential the battery provides, with common options being 12V, 24V, or 36V. This is important because your trolling motor is designed to work with a specific voltage. Using the correct voltage ensures optimal performance and prevents damage. Most small to medium trolling motors use 12V, while larger or more powerful motors may require 24V or 36V setups, often achieved by connecting multiple batteries. Always check your motor's requirements and match the battery voltage accordingly.
Reserve Capacity (RC)
Reserve capacity indicates how many minutes the battery can deliver a specified amount of power (usually 25 amps) before dropping below a usable voltage. This spec is important for understanding how long the battery can provide power under continuous use. Batteries with higher reserve capacity are better for longer trips or when you need to run your motor for extended periods. If you often spend many hours on the water, look for a battery with a higher reserve capacity.
Weight and Size
The weight and size of the battery affect how easy it is to handle and whether it fits in your boat's battery compartment. Heavier and larger batteries usually offer more capacity but can be harder to move and may not fit in all spaces. Lighter and more compact batteries are easier to handle but may have less capacity. Consider your boat's space and how much weight it can safely carry when choosing a battery.
Cycle Life
Cycle life refers to the number of complete charge and discharge cycles a battery can handle before its capacity drops significantly. This is important for long-term value and reliability. Batteries with a higher cycle life will last longer, especially if you use your trolling motor frequently. If you go boating often, look for a battery with a high cycle life to avoid frequent replacements.
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