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Xantrex 36V 50Ah Lithium-Ion (LiFePO4) Battery
Original price was: $615.59.$475.62Current price is: $475.62.
21 in stock
Unlock Superior Performance with Advanced LiFePO4 Technology
Imagine powering your trolling motor through endless days on the water without the constant worry of battery failure or excessive weight slowing you down. This 36V 50Ah LiFePO4 battery steps in as a direct upgrade for traditional Group 31 lead-acid setups, delivering compact power that punches way above its size. Fishermen, RV enthusiasts, and fleet operators alike rave about how it transforms their setups—lighter loads mean better fuel efficiency, and that marathon cycle life keeps you going season after season.
Crafted with UL1642-certified cells and layered safety protocols, it’s built to thrive in the unforgiving world of marine vibrations, road bumps, and temperature swings. Whether you’re chasing bass at dawn or hauling cargo cross-country, this battery’s robust BMS (Battery Management System) guards against overcharge, deep discharge, and thermal runaway, making it one of the most reliable options out there.
More Power, Fewer Replacements: The Cycle Life Advantage
Lead-acid batteries tap out after 400-500 cycles, but this LiFePO4 powerhouse pushes up to 4,000 full cycles under normal use. That translates to years of dependable service before you even think about swapping it out. Its exceptional energy density crams more usable power into the same footprint, freeing up space in tight battery compartments and reducing overall vehicle weight for smoother handling and better range.
Intelligent Features for Real-World Demands
- Sleep Mode Mastery: Kicks in after 10 days of no activity, slashing self-discharge to just 3% SOC per month (from 12.5% normally). Perfect for off-season storage—your battery stays primed without babysitting.
- Extreme Temp Resilience: Charge confidently in scorching heat up to 55°C/131°F, and an optional heating blanket keeps it performing in frigid conditions outside the cabin.
- Bluetooth Monitoring: Pair with the Xantrex app on your phone to track SOC, spot faults in real-time, and even remote toggle on/off. Stay ahead of issues before they strand you.
- Built-In Protection: Self-managing BMS handles high/low temps, faults, and more, with remote fault signaling for peace of mind.
These aren’t just specs—they’re game-changers for anyone tired of flat batteries ruining a perfect outing.
Versatile Power for Demanding Lifestyles
From the gentle rock of waves to the rumble of diesel engines, this battery shines across industries:
- Marine: Powers trolling motors silently and steadily, letting you fish longer without the drag of heavy lead-acid packs.
- RVs: Keeps lights, fridges, and inverters humming through remote campsites, with Bluetooth checks from your lounge chair.
- Heavy-Duty & Work Trucks: Handles fleet demands, reducing downtime with its marathon cycles and quick recharges.
- Specialty Vehicles: Custom rigs and off-road beasts get lightweight, high-output reliability.
Users report cutting battery maintenance by half, with one captain noting it “saved my season after a lead-acid flooded mid-trip.”
Certified Safety You Can Trust
Backed by UN/DOT 38.3 Lithium Ion certification, it meets rigorous transport and safety standards. Redundant safeguards and premium cells ensure stability even in bumpy marine or overland adventures—no venting, no spills, just solid performance.
“Switched to this for my bass boat—lighter, lasts forever, and the app is a lifesaver for monitoring during tournaments.” – Satisfied Angler
Frequently Asked Questions
How does the Sleep Mode work on this LiFePO4 battery?
After 10 consecutive days of inactivity, it enters Sleep Mode, dropping self-discharge to 3% State of Charge per month from the standard 12.5%. Any charge or discharge resets the timer, ideal for seasonal storage.








