12 Volt Lithium Marine Battery For Electric Trolling Motors, Pontoons, Auxiliary Power LIFEPO4 4KWH Lithium Battery, IP67

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⚡Much longer life than lead-acid — More cycles means lower cost per year and less frequent replacements.

⚡Less weight, more capacity — Improves boat handling and fuel efficiency for hybrid setups.

⚡Fast charging / quick recovery — Better use of shore power or onboard chargers; get back on the water sooner.

⚡Zero maintenance — No watering, no sulfation — just install and go.

⚡Safer chemistry — LiFePO4 is thermally stable and less prone to thermal runaway ⇱ than other lithium types.

⚡Scalable power — Add parallel units to match your range and runtime needs without redesigning your system.

⚡Project customization — We’ll adapt terminals, mounting, and communication so the battery fits your boat project exactly.

⚡IP67 weather protection — Peace of mind for wet decks, splashes, and coastal conditions.

✅Electric trolling motors — Run longer fishing sessions with consistent power output.

✅Pontoon boats — Power cabin lights, sound systems, winches, and small water pumps.

✅Auxiliary power supply in yachts or sailboats — Run navigation electronics, fridges, bilge pumps, and emergency systems.

✅Bow-mount motors & shallow-water craft — Low-profile installs and modular capacity.

✅Fishing and camping boats — Reliable power for fish finders, coolers, and LED lighting.

✅Electric tenders & small day boats — Main propulsion on light craft or backup power for safety.

✅Solar + battery hybrid — Store solar harvest for night or cloudy days on docked boats.

Q: What makes this 12V LiFePO4 marine battery better than my old lead-acid battery?
A: You’ll get much longer life, less weight, faster charging, and zero watering. LiFePO4 is more stable and gives you more usable energy per kg, so your boat handles better and you replace batteries less often.

Q: How much runtime can I expect from the 4 kWh pack?
A: Runtime depends on your load. At a continuous 200 W draw, you’d get about 20 hours (4,000 Wh ÷ 200 W). Higher draws shorten runtime—tell us your typical loads and we’ll help estimate.

Q: Can I connect more than one battery to get longer range?
A: Yes. The pack is parallel-ready so you can add units to increase capacity. We’ll provide recommended wiring and limits for safe parallel use.

Q: Is this battery safe on a wet deck or if it gets splashed?
A: Yes — the housing is IP67 rated (dust-tight and protected against temporary immersion). Still, avoid leaving connectors exposed and follow good marine wiring practices.

Q: Will the trolling motor battery work with my trolling motor and onboard electronics ⇱?
A: Most likely yes. Our batteries are designed for trolling motors, pontoons, and auxiliary yacht systems. Tell us your motor voltage/current and electronics so we can confirm compatibility.

Q: Do I need a special charger or can I use my existing marine charger?
A: You can usually use modern chargers that support lithium profiles. For best performance, use a charger with LiFePO4 settings or one we recommend. We can provide charger specs and settings.

Q: How do I charge the battery from solar panels ⇱?
A: You can pair the battery with an MPPT solar controller sized to your panels. The battery accepts fast charging and stores solar energy for night or cloudy conditions. We can recommend controller settings.

Q: What protections are built in?
A: The integrated BMS handles cell balancing, over-/under-voltage, over-current and short-circuit protection. It helps keep the battery and your boat safe.

Q: Can you customize the terminals, cables, or case to fit my boat?
A: Yes — we support project customization (terminals, cable lengths, mounting racks, and communication like CAN or RS485). Tell us your footprint and connector preference.

Q: How heavy is the battery and can I stack or rack multiple units?
A: It’s much lighter than equivalent lead-acid batteries. The pack is designed to be stackable and rack-friendly for compact installs. We’ll give exact weight and mounting instructions for your setup.

Q: What’s the operating temperature range? Can I use it in cold weather?
A: LiFePO4 works well over a broad range, but charging below freezing can damage cells. We’ll provide specific charge/discharge temperature limits and advice for cold-weather installs.

Q: How long will the battery last (cycle life) and what’s the warranty?
A: LiFePO4 typically offers many hundreds to thousands of cycles — much longer than lead-acid. Warranty terms vary by model and order size; contact us and we’ll send the exact warranty details for the unit you choose.

Q: Can I ship a single sample to test on my boat?
A: Yes — we can ship test units DAP or DDP depending on your needs. We’ll help with packing specs and export documents; for air shipments, we follow all hazardous-goods rules.

Q: What maintenance does the battery need?
A: Very little. No watering, no equalizing. Periodic checks of terminals, cable tightness, and BMS logs are recommended. If you use multiple units, check parallel connections regularly.

Q: What should I do if the boat’s system voltage or controller is different from 12V?
A: Don’t worry — we design custom solutions. If your system needs a different voltage or you need multiple packs to reach system voltage (e.g., 24V/48V configurations), we’ll propose a safe, project-ready setup that matches your controller and motor specs.

Q: How does this battery improve my time on the water?
A: With 4 kWh of usable energy and efficient LiFePO4 chemistry, you’ll spend less time worrying about charging and more time fishing, cruising, or relaxing.

Q: Is this battery a reliable power source for long trips?
A: Absolutely. With built-in BMS protection and stable LiFePO4 chemistry, you get consistent, reliable power for trolling motors, electronics, and onboard accessories.

Q: How fast does the battery charge compared to lead-acid?
A: This battery charges up to 4x faster than traditional flooded lead-acid or AGM batteries. You’ll be ready to get back on the water sooner.

Q: Does this battery provide enough electric power for my full-day boating trips?
A: Yes — its 4 kWh capacity delivers stable electric power all day. Add parallel units if you need extended runtime for trolling motors or cabin systems.

Q: How does this compare to Dakota Lithium batteries?
A: Both use LiFePO4 chemistry, but Bonnen Battery specializes in custom marine battery solutions. We offer project-specific terminal options, IP67 protection, and parallel-ready designs.

Q: Can I use this as a starting battery for my outboard motor?
A: It depends on your cranking amps requirement. LiFePO4 batteries are best for deep cycle use but can be configured as starting batteries with project-specific customization.

Q: Is this considered a deep cycle marine battery?
A: Yes. It’s designed for deep cycle applications, meaning it can discharge deeply without damage, making it perfect for trolling motors and auxiliary yacht power.

Q: Can this be used as a dual purpose battery?
A: Yes — we can customize the pack to serve both deep cycle and cranking battery roles. Share your system specs and we’ll recommend the best configuration.

Q: How does it compare to traditional cranking batteries?
A: Unlike cranking batteries, which deliver short bursts of power, this LiFePO4 pack delivers steady electric power over long periods, perfect for trolling motors and electronics.

Q: Can I use it as the main power source for my yacht or pontoon?
A: Yes. It’s ideal as a primary power source for marine electronics, lighting, and propulsion systems — and you can parallel multiple units for even larger setups.