You’ll find that LiFePO4 lithium batteries dominate the 2026 trolling motor market, with 12V 100Ah models from Litime, Battle Born, and DC HOUSE leading the pack at 22–24 lb versus 60+ lb for old lead-acid units. These batteries deliver 1,280 Wh, 4,000–15,000+ cycle life, and sturdy BMS protection with IP65–IP67 ratings. For compact setups, the ECO-WORTHY 12V 20Ah (5 lb) works brilliantly, while serious anglers can scale up to 36V 100Ah packs offering 3,840W continuous power. Below, you’ll uncover detailed specs, warranty coverage, and real-world performance observations to match your exact fishing needs.
TLDR
- LiFePO4 batteries weigh 22–25 lb versus 60+ lb lead-acid equivalents while offering 80–100% usable capacity compared to 50%.
- Top 12V 100Ah models deliver 1,280 Wh, support 30–70 lb trolling motors, and feature 100A BMS with short-circuit protection.
- Premium units offer 4,000–15,000+ cycle lifespans depending on depth-of-discharge, vastly exceeding lead-acid longevity claims.
- IP65/IP67-rated marine batteries include salt-resistant construction, charging cutoffs below 32°F, and TVS voltage spike protection.
- 36V 100Ah configurations provide 3,840 W continuous power, 200–500A BMS ratings, and expandable capacity up to 20+ kWh.
More Details on Our Top Picks
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12V 100Ah LiFePO4 Battery with Built-in BMS
If you’re running a trolling motor and refuse to waste half your fishing day waiting for batteries to charge, this 12V 100Ah LiFePO4 reaches full capacity in roughly 2 hours—about 6× faster than lead-acid alternatives that demand 14 hours tethered to shore power. You’ll extract 1,280Wh across 15,000+ deep cycles, supplying 30× the cycle life of traditional batteries while saving over 30% in weight and space. The built-in 100A BMS guards against over-discharge, over-current, short circuits, and temperature extremes from -4°F to 158°F, and IP67 waterproofing means you won’t fret over splashes. At 24.9 lb with a nylon carry handle, it’s genuinely portable for weekend anglers.
- Voltage:12.8V
- Capacity:100Ah
- Weight:23.2–24.9 lb
- Cycle Life:15,000+ cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:IP67 waterproof rating
- Additional Feature:Full charge in 2 hours
- Additional Feature:Nylon handle for transport
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Litime 12V 100Ah LiFePO4 Trolling Motor Battery (2-Pack)
The Litime 12V 100Ah LiFePO4 Trolling Motor Battery arrives as a 2-pack solution engineered for anglers who demand extended runtime without the heft penalty of traditional lead-acid systems. Each battery delivers 1,280Wh capacity while tipping the scales at just 22.2 pounds—roughly half what comparable lead-acid alternatives burden you with. You’ll power 30–70 lb trolling motors through 4,000+ deep cycles, with Bluetooth monitoring letting you track discharge status in real-time via smartphone app. The 100A BMS provides overcharge, short-circuit, and low-temperature protection, while IP65 sealing guards against saltwater spray and humidity. Expandable up to 20.48kWh in 4P4S configuration, this system scales with shifting power demands—though it’s unsuitable for engine starting applications.
- Voltage:12V
- Capacity:100Ah
- Weight:22.2 lb
- Cycle Life:4,000+ to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:Yes
- Additional Feature:30-second overload auto-recovery
- Additional Feature:Sold as 2-pack
- Additional Feature:30–70 lb motor range
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ECO-WORTHY 12V 20Ah Lithium Battery for RV
Compact kayak anglers and amateur radio operators will find ECO-WORTHY’s 12V 20Ah LiFePO4 battery checks all the boxes for lightweight, space-constrained applications. At just 5.07 pounds and 8.70 inches long, it’ll fit tight spaces where full-sized batteries won’t. You’ll get 4,000+ cycles—dramatically outlasting lead-acid’s 300–500—and the 20A BMS guards against overcharge, overheating, and short circuits. The 5.5mm DC port powers USB adapters (5A max recommended), while traditional terminals handle fishfinders and small trolling motors. It’s purpose-built for kayaks, power wheels, and field equipment rather than demanding marine applications, but the compact form factor and 10-year lifespan make it excellent value for ultra-portable needs.
- Voltage:12.8V
- Capacity:20Ah
- Weight:5.07 lb
- Cycle Life:4,000+ to 5,000+ cycles
- BMS Rating:20A
- Bluetooth Monitoring:No
- Additional Feature:DC 5.5×2.5mm output port
- Additional Feature:Ergonomic grip design
- Additional Feature:Compact 20Ah capacity
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12V 100Ah LiFePO4 Battery with 100A BMS
Looking for extreme longevity in your trolling motor setup, you’ll find the Eiiev 12V 100Ah LiFePO4 Battery delivers up to 15,000 cycles at 60% depth of discharge—that’s 30 times more than traditional lead-acid batteries that barely reach 500 cycles. You’re getting 1,280Wh of capacity with 95% usable energy, perfect for 30–70 lb thrust motors during extended fishing trips.
The built-in 100A BMS protects your investment, though you’ll need a specific 14.6V pulse charger—standard automotive chargers won’t work. At 23.4 pounds, it’s markedly lighter than lead-acid equivalents. You can expand to 20.48kWh by connecting four parallel and four series configurations for larger vessels.
- Voltage:12.8V
- Capacity:100Ah
- Weight:23.4 lb
- Cycle Life:4,000 to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:UL-tested cell inside
- Additional Feature:14.6V pulse charger required
- Additional Feature:Grade A+ cells
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Litime 12V 100Ah Trolling Motor LiFePO4 Battery
For anglers who demand extended runtime without the weight penalty of traditional batteries, this Litime 12V 100Ah LiFePO4 delivers twice the range of lead-acid equivalents while tipping the scales at just 22.2 pounds. You’ll power 30–70 lb trolling motors through 4,000+ deep cycles, with smartphone monitoring that displays real-time capacity and system diagnostics via auto-connecting Bluetooth.
The 100A BMS provides 20+ protections, including IP65 waterproof housing and salt-resistant construction for harsh marine environments. At 1280 Wh capacity, you’re getting reliable all-day performance, though low-temperature charging cuts off at 32°F—something to bear in mind for early-season fishing. Its Group 31 footprint guarantees straightforward installation in most boats.
- Voltage:12V
- Capacity:100Ah
- Weight:22.2 lb
- Cycle Life:4,000+ to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:Yes
- Additional Feature:Auto-connects Bluetooth instantly
- Additional Feature:IP65 salt-resistant
- Additional Feature:MPPT charger activation
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12V 100Ah LiFePO4 Battery with 100A BMS
The Lithova 12V 100Ah LiFePO4 Battery stands out as the best choice if you’re running a trolling motor and need exceptional cycle life without the weight penalty of traditional lead-acid batteries. You’ll get 4,000+ cycles at full depth-of-discharge—triple what most competitors offer—and it weighs just 22.6 pounds compared to 60+ pounds for equivalent lead-acid models. The 100A BMS protects against overcharge, short-circuits, and cold-weather damage without requiring Bluetooth configuration. At 1,280Wh capacity, it’ll power your trolling motor all day, recharging in five hours at 20A. Note it’s not designed for engine starting, strictly deep-cycle use. The five-year warranty backs Lithova’s durability claims.
- Voltage:12V
- Capacity:100Ah
- Weight:22.6 lb
- Cycle Life:4,000 to 15,000 cycles
- BMS Rating:100A (smart BMS)
- Bluetooth Monitoring:No
- Additional Feature:Group 24 form factor
- Additional Feature:5-year manufacturer warranty
- Additional Feature:5 hours full charge
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LOSSIGY 36V 100Ah LiFePO4 Golf Cart Battery
Anglers who demand serious power and marathon runtime will find their match in the LOSSIGY 36V 100Ah LiFePO4 Golf Cart Battery. You’ll get 3,840W continuous power with 1,000A peak current—enough muscle for extended deep-water excursions. The included 25A charger refuels completely in four hours, while the built-in 200A BMS protects against nine failure modes. At 66.9 pounds, it’s 50% lighter than comparable lead-acid alternatives, making installation and transport markedly easier. You’re covered by IP65 waterproof protection and over 4,000 charge cycles—roughly eight times lead-acid longevity. The five-year warranty and real-time Bluetooth monitoring sweeten this premium package.
- Voltage:36V
- Capacity:100Ah
- Weight:66.9 lb
- Cycle Life:≥4,000 cycles
- BMS Rating:200A
- Bluetooth Monitoring:Yes
- Additional Feature:1,000A peak current
- Additional Feature:25A charger included
- Additional Feature:Touch-screen monitor included
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LiTime 36V 100Ah LiFePO4 Battery with Charger
Serious boaters who demand maximum power and advanced monitoring will find their match in the LiTime 36V 100Ah LiFePO4 Battery with Charger. This 63-pound powerhouse delivers 500A surge current and includes a 43.8V 25A charger—eliminating separate purchase decisions. You’ll appreciate the Bluetooth 5.0 monitoring that tracks real-time battery status directly from your phone. The IP65 waterproof rating and 20+ BMS protections (including low-temp cut-off and auto-recovery) provide peace of mind during extended trips. While compatible with Torqeedo, ePropulsion, and Yamaha outboards, you’re paying premium pricing compared to non-bundled alternatives. The 4,000–15,000 cycle lifespan justifies the investment for frequent users.
- Voltage:36V
- Capacity:100Ah
- Weight:63.1 lb
- Cycle Life:4,000–15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:Yes (Bluetooth 5.0)
- Additional Feature:500A surge current
- Additional Feature:ABYC-certified for outboards
- Additional Feature:43.8V 25A charger included
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Litime 12V 100Ah LiFePO4 Trolling Motor Battery (2-Pack)
For boaters seeking maximum expandability and long-term value, Litime’s 12V 100Ah LiFePO4 trolling motor battery 2-pack delivers exceptional versatility. You’ll appreciate the 4P4S expandability that scales up to 20.48 kWh for larger systems, while the 100A BMS provides triple protection against overcharging, over-discharge, and overheating. Each battery weighs just 22 pounds yet delivers 4,000+ cycles at 100% depth of discharge—dramatically outperforming AGM alternatives limited to 200–500 cycles. The built-in TVS protection shields your motor from voltage spikes, and smart low-temp cutoffs prevent cold-weather damage. With 4.6-star ratings from 213 customers, this configuration offers persuasive economics for expandable marine power systems.
- Voltage:12.8V
- Capacity:100Ah
- Weight:22.1 lb
- Cycle Life:4,000+ to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:ABYC E-13 standard
- Additional Feature:Built-in TVS protection
- Additional Feature:2-pack configuration
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LiTime 36V 50Ah Trolling Motor LiFePO4 Battery
The LiTime 36V 50Ah brings Bluetooth connectivity and low-temperature protection to a 1,920Wh lithium battery built specifically for trolling motors up to 120 lb thrust. You’ll get 4,000+ cycles—roughly triple what lead-acid offers—and a 10.85% energy density advantage over typical 12V 100Ah alternatives. The 50A BMS handles continuous discharge with a 60A burst capacity for 30 minutes, while Bluetooth 5.0 lets you monitor performance in real time. You can parallel up to four units for 7.68 kWh total storage. LiTime backs it with a five-year warranty, and it’s rated 4.7/5 stars from 48 Amazon reviews, making it a solid choice for serious anglers.
- Voltage:36V
- Capacity:50Ah
- Weight:33.14 lb
- Cycle Life:4,000+ cycles
- BMS Rating:50A
- Bluetooth Monitoring:Yes (Bluetooth 5.0)
- Additional Feature:120 lb thrust support
- Additional Feature:60A 30-minute rating
- Additional Feature:ASA member certified
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12V 100Ah LiFePO4 Deep Cycle Battery
Anglers seeking maximum runtime without weight penalties will find the SUPER ENABLE 12V 100Ah LiFePO4 battery (SE-LFP100MINI-12V-B25) delivers exceptional value at just 21.6 lbs—roughly one-third the weight of comparable lead-acid alternatives. You’ll get 1280Wh capacity with Grade A+ cells rated for 5000+ cycles, ensuring years of reliable service. The 100A BMS protects against overcharge, over-discharge, and temperature extremes, while cold-weather safeguards prevent charging below 32°F to extend lifespan. Its BCI Group 24 form factor drops directly into standard battery boxes, and you can configure up to 4S4P (48V 400Ah) for larger vessels. The five-year warranty and U.S.-based support provide additional confidence.
- Voltage:12V
- Capacity:100Ah
- Weight:21.6 lb
- Cycle Life:5,000 to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:1–2% self-discharge monthly
- Additional Feature:U.S. design and manufacturing
- Additional Feature:Resumes charging above 41°F
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DC HOUSE 12V 100Ah LiFePO4 Trolling Motor Battery
DC HOUSE’s 12V 100Ah LiFePO4 battery stands out with its built-in Bluetooth monitoring and exceptional 15,000-cycle lifespan, making it ideal for anglers who want real-time battery data without sacrificing longevity. You’ll track state-of-charge, cell voltages, and current draw through the DC HOUSE app within 5–10 meters, helping you troubleshoot issues before they strand you on the water.
At 23.8 pounds, it’s lighter than comparable lead-acid options, though it’s 0.32 inches taller than standard Group 24 dimensions—measure your battery compartment first. The 100A BMS and Class A LiFePO4 chemistry deliver reliable power for demanding trolling applications, while low-temperature cutoffs protect your investment during ice fishing trips.
- Voltage:12V
- Capacity:100Ah
- Weight:23.8 lb
- Cycle Life:Up to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:Yes
- Additional Feature:5–10 meter Bluetooth range
- Additional Feature:Cell-level voltage display
- Additional Feature:3-year service warranty
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Litime 12V 100Ah LiFePO4 Trolling Motor Battery
Boaters seeking maximum longevity and minimal weight will find the Litime 12V 100Ah LiFePO4 Trolling Motor Battery delivers exceptional value through its 15,000-cycle lifespan and ultralight 22.1-pound design. You’ll appreciate the 64% weight reduction compared to lead-acid alternatives, which translates to improved boat handling and speed. The built-in 100A BMS provides thorough protection against overcharge, overheating, and short circuits, while TVS technology safeguards your 12V–36V trolling motors from voltage spikes. This ABYC E-13-certified battery stops charging below 32°F and discharging below −4°F, preventing cold-weather damage. With 4.6-star ratings across 213 reviews and expandability to 51.2V systems, you’re investing in proven marine-grade performance.
- Voltage:12.8V
- Capacity:100Ah
- Weight:22.1 lb
- Cycle Life:4,000+ to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:64% lighter than lead-acid
- Additional Feature:Improves boat speed/agility
- Additional Feature:TVS voltage spike protection
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12V 100Ah LiFePO4 Battery with Bluetooth
The LITHINENG 12V 100Ah LiFePO4 Battery stands out for tech-savvy fishermen who want real-time battery monitoring without opening compartments or guessing charge levels. You’ll connect via Bluetooth in five seconds and track voltage, current, and capacity from your phone while running 30–70 lb trolling motors. The IP65-rated case handles three-foot submersion, and the 100A BMS cuts power if temperatures drop below -4°F or exceed 150°F. At 20.8 pounds, it’s 30% lighter than comparable units and drops into Group 24 boxes. You’ll get 4,000 cycles at full depth-of-discharge, extending to 15,000+ cycles if you stop at 60% depletion, potentially supplying ten years of service.
- Voltage:12.8V
- Capacity:100Ah
- Weight:20.8 lb
- Cycle Life:4,000 to 15,000+ cycles
- BMS Rating:100A
- Bluetooth Monitoring:Yes
- Additional Feature:Install in any orientation
- Additional Feature:Matte-finish wear-resistant case
- Additional Feature:3-foot immersion tested
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2-Pack 12V 100Ah LiFePO4 Lithium Battery Group 31
GRNOE’s 2-pack LiFePO4 batteries deliver an exceptional 15,000 deep cycles and IP65 waterproof protection, making them ideal for anglers who demand reliable auxiliary power across multiple seasons without the weight penalty of traditional lead-acid options. At 22.5 pounds per unit, you’ll get 57 Wh/lb energy density—substantially better than lead-acid alternatives. The built-in 100A BMS protects against overcurrent and temperature extremes, while the batteries support 12V 36–55 lb trolling motors. You’ll need a 14.6V lithium-specific charger for proper activation and charging, as standard 12V chargers won’t fully charge these cells. The two-battery order ships separately, and you’re covered by a 36-month warranty.
- Voltage:12V
- Capacity:100Ah
- Weight:22.5 lb
- Cycle Life:Up to 15,000 cycles
- BMS Rating:100A
- Bluetooth Monitoring:No
- Additional Feature:M8-5/8 (16mm) terminals
- Additional Feature:Ships one per box
- Additional Feature:36-month warranty included
Factors to Consider When Choosing a Trolling Motor Battery
When you’re comparing trolling motor batteries, you’ll need to match the voltage and capacity to your motor’s power demands and your typical time on the water. Beyond basic specs, evaluate the BMS protection features that safeguard your investment, cycle life ratings that determine long-term value, and temperature ranges that suit your fishing conditions. Don’t overlook weight and size—you’ll want a battery that fits your boat’s setup without adding unnecessary bulk or requiring structural modifications.
Battery Voltage and Capacity
Before you spend a dollar on a trolling motor battery, you need to nail down two critical specs: voltage and capacity. Match your motor’s rated voltage—12V, 24V, or 36V—or you’ll risk damage and poor performance. Higher voltage systems let you run the same power at lower current, cutting wiring losses and enabling smaller cables.
Capacity, measured in amp-hours (Ah), dictates runtime. A 100Ah 12V battery stores roughly 1,280Wh and powers a 128W load for about 10 hours. Need more runtime? Wire batteries in parallel to add Ah while maintaining voltage, or series-connect to amplify voltage for higher-output motors.
Remember usable capacity: lithium batteries deliver 80–100% of rated Ah, while lead-acid should stay near 50% to maximize lifespan.
BMS Protection Features
Although voltage and capacity get top billing on spec sheets, the battery management system hiding inside your trolling motor battery determines whether you’ll enjoy years of reliable service or face a smoking pack mid-tournament. You’ll want a BMS with continuous discharge ratings matching your motor’s draw—typically 100A for 12V 100Ah packs—to prevent overcurrent trips during hard pulls. Overcharge, over-discharge, and cell-balancing circuits extend LiFePO4 life from thousands to 15,000 cycles at moderate depths. Low-temperature cutoffs that disable charging below 32°F and discharge below −4°F protect cells in winter fishing. Short-circuit auto-shutdown with transient auto-recovery prevents fires while tolerating brief surges. Finally, IP65–IP67 waterproofing plus salt-spray and vibration resistance guarantee your BMS survives harsh marine environments season after season.
Cycle Life and Longevity
A sturdy BMS keeps your battery safe today, but cycle life determines whether you’ll still be fishing with the same pack five seasons from now. LiFePO4 batteries deliver 4,000–15,000 cycles compared to lead-acid’s few hundred, translating to dramatically lower cost-per-cycle despite higher upfront investment. You’ll maximize longevity by keeping discharge depths around 50–60% rather than routinely draining to empty—shallow cycling can double or triple total lifespan. High temperatures, aggressive current draws, and charging outside recommended ranges accelerate capacity fade. Pair proper charging profiles with BMS protection and avoid storing batteries at low charge. These practices make certain you’re comparing true usable years, not just manufacturer specs, when evaluating whether a premium battery justifies its price tag.
Temperature Operating Range
When you’re launching at dawn in February or battling hundred-degree afternoons in July, your battery’s temperature tolerance directly impacts whether you’ll have power when you need it. Most LiFePO4 batteries discharge down to −4°F but won’t charge below 32°F—lithium plating damages cells permanently. You’ll also see reduced capacity and current output as temperatures drop toward freezing.
At the high end, expect automatic shutoffs around 150–158°F to prevent thermal runaway. If you fish in extreme climates, prioritize models with built-in low-temperature protection or consider adding insulation and heating accessories.
For maximum longevity, store your battery at 40–70°F and partial charge. Extreme storage temperatures—hot or cold—accelerate capacity fade and cut your investment’s lifespan markedly shorter than advertised cycle counts.
Weight and Size Compatibility
Before you swipe your card on that high-capacity LiFePO4 pack, measure your battery compartment and weigh your boat’s payload limits—the wrong footprint or excessive mass can turn a smart upgrade into a stability nightmare. Heavy 12V 100Ah batteries tip the scales at 20–25 lb each, while compact 12.8V 20Ah units weigh just 5 lb. Verify Group 24–31 dimensions or mini form factors fit your tray and cable routing. Place heavier cells low and centered to preserve handling; high or off-center mounts increase roll and bow rise. Running two 100Ah batteries? Budget 40–50 lb plus wiring space. For kayaks and jon boats, prioritize energy-to-weight ratio (Wh/lb) and portability features—handles matter when you’re carrying gear to the ramp.
Frequently Asked Questions
How Long Does It Take to Fully Charge a Trolling Motor Battery?
You’ll typically need 4-10 hours to fully charge your trolling motor battery, depending on its capacity and your charger’s amperage. Higher-amp chargers work faster, but you’ll want to compare models since gentler charging extends your battery’s lifespan.
Can I Use a Regular Car Battery Charger for Lifepo4 Batteries?
No, you shouldn’t use a regular car battery charger for LiFePO4 batteries. These lithium batteries require specific charging profiles and voltage settings that car chargers don’t provide, risking damage or reduced lifespan. Invest in a dedicated LiFePO4 charger instead.
What’s the Average Lifespan of a Trolling Motor Battery in Years?
You’ll get 2-3 years from lead-acid batteries with proper care, while lithium (LiFePO4) batteries last 8-10 years or more. If you’re comparing options, lithium’s longer lifespan justifies its higher upfront cost through better long-term value.
Do Trolling Motor Batteries Work in Freezing Temperatures?
Yes, they’ll work in freezing temperatures, but you’ll notice markedly reduced performance and capacity. Lithium batteries handle cold better than lead-acid options, so you should compare both types if you’re frequently fishing in winter conditions.
Can I Connect Different Battery Brands Together in a Series?
You shouldn’t connect different battery brands in series. Mismatched capacities, chemistries, and discharge rates cause uneven charging and premature failure. You’ll get better performance and longevity by using identical batteries from the same manufacturer with matching specifications.
Final Note
You’ve seen the top contenders, from budget-friendly 20Ah options to powerful 100Ah workhorses. Now it’s time to match your needs with the right battery. If you’re running a larger motor or fishing all day, you’ll want that 100Ah capacity. Weekend anglers can save money with smaller models. Don’t overlook built-in BMS and Bluetooth features—they’re transformative for battery management. Compare prices, read user experiences, and you’ll find your perfect trolling motor companion.
