The Freedom Won Lite Marine LiFePO₄ Battery Series delivers a dependable, long-lasting energy solution designed specifically for marine and coastal applications. Built to handle high power demands while maintaining stable and efficient performance, this range ensures clean, quiet, and safe energy storage on vessels and in seaside environments.
Operating at 26V nominal voltage, these batteries offer capacities from 5kWh to 30kWh, making them ideal for powering yachts, houseboats, and coastal installations requiring reliable off-grid or hybrid energy systems.
Features & Benefits
- Marine-Grade Energy Storage Solution: Specifically designed for marine applications, ideal for below-deck installation where the battery remains protected from direct saltwater spray or immersion. Perfect for boats, yachts, and seaside properties exposed to airborne salt moisture.
- Reliable LiFePO₄ Chemistry: Utilizes Lithium Iron Phosphate (LiFePO₄) technology for superior thermal stability, safety, and long life compared to conventional lead-acid or lithium-ion batteries.
- Long Cycle Life and Warranty: Provides up to 6000 charge/discharge cycles at 80% Depth of Discharge (DoD). Includes a 10-year warranty, guaranteeing at least 60% capacity at the end of its service life — ensuring reliable long-term energy performance.
- High Discharge and Overload Capacity: Can handle 30 seconds of maximum discharge load per 60-second cycle and 1.5x maximum overload for 5 seconds, offering exceptional power support for demanding marine or off-grid applications.
- Temperature-Optimized Performance: Current limits rated for 10°C to 25°C battery temperature. The system intelligently derates performance outside this range to protect battery health, ensuring consistent operation in tropical climates like Tanzania’s coastal zones.
- Safe Charging Parameters: Charging below 0°C is not permitted, and extended operation above 45°C is discouraged, helping maintain optimal battery longevity and performance.
- Convenient Installation Design: Comes equipped with end handles or eye bolts for secure mounting, and 1.8m DC power cables (Red = Positive, Black = Negative), simplifying installation for marine engineers and solar technicians.
- Efficient Power Output for Inverter Systems: Operates at 26V nominal voltage, delivering stable and efficient power supply to inverters and DC systems, making it ideal for hybrid and off-grid energy setups in marine or coastal environments.
- Corrosion-Resistant and Durable Construction: Built with marine-grade materials to resist corrosion caused by sea air and humidity, ensuring dependable operation in harsh coastal conditions.
- Low Maintenance and Environmentally Friendly: Maintenance-free operation with no acid, fumes, or emissions — safe for enclosed boat compartments and sustainable for environmentally conscious users.
Use Cases
- Marine Vessels (Below Deck Installation): Ideal for powering onboard electrical systems in yachts, fishing boats, and leisure vessels where batteries are installed below deck, away from direct saltwater spray.
- Seaside Residential Properties: Perfect for coastal homes and villas in Tanzania exposed to airborne sea moisture, ensuring reliable and corrosion-resistant energy storage performance.
- Hybrid Solar Power Systems: Works seamlessly with inverters and solar arrays for off-grid or hybrid setups, providing clean and stable energy storage in marine and coastal conditions.
- Resorts and Lodges Along the Coast: Reliable power source for beachside accommodations, ensuring uninterrupted power for lighting, refrigeration, and guest amenities.
- Commercial Marine Applications: Supports energy requirements for ferries, small passenger vessels, and service boats that demand dependable battery performance under marine conditions.
- Remote Coastal Operations: Suitable for powering communication systems, research stations, and navigation equipment in offshore or nearshore facilities.
- Backup Power for Coastal Businesses: Provides consistent backup energy for seaside restaurants, bars, and offices affected by grid instability or high moisture exposure.
- Eco-Friendly Boat Power Systems: Offers an environmentally responsible energy solution for electric boats and marine systems focused on sustainability and reduced emissions.
Value Propositions
- Purpose-Built for Marine and Coastal Conditions: Specifically engineered for below-deck installations and seaside environments, offering reliable performance in areas with airborne salt moisture without risk of corrosion or degradation.
- Long-Lasting Power and Warranty Assurance: Backed by a 10-year warranty and 6000 charge cycles at 80% depth of discharge, ensuring consistent energy performance and exceptional return on investment for long-term marine and off-grid applications.
- High Discharge Capability for Demanding Loads: Capable of handling 1.5x maximum overload for 5 seconds and high discharge loads for short durations—ideal for systems with variable power demands such as inverters, navigation electronics, or onboard equipment.
- Safe and Stable LiFePO₄ Chemistry: Utilizes Lithium Iron Phosphate technology, offering superior safety, thermal stability, and resistance to overcharging or overheating—essential for confined marine environments.
- Temperature-Optimized Performance: Rated for 10°C to 25°C optimal operation, with derating protection outside this range; ensures efficiency and longevity even in tropical climates like coastal Tanzania.
- Easy Installation and Maintenance-Free Operation: Comes with end handles or eye bolts and 1.8m color-coded DC cables for quick setup. No maintenance required—just connect and operate with peace of mind.
- Environmentally Responsible Solution: Built using recyclable and non-toxic materials, aligning with sustainability goals and supporting Tanzania’s growing shift toward eco-friendly energy solutions.
- Ideal for Marine, Seaside, and Off-Grid Applications: Perfect for powering boats, yachts, beach resorts, or coastal homes, ensuring uninterrupted energy storage even in humid or salt-laden environments.
- Reliable Partner for Renewable Energy Systems: Seamlessly integrates with solar and hybrid inverter systems, offering dependable energy storage for off-grid and hybrid power setups across Tanzania’s coastal and island communities.
Local Market Positioning in Tanzania
- Ideal for Coastal and Marine Environments: Designed specifically for below-deck installation on boats and coastal properties across Tanzania — ideal for locations such as Dar es Salaam, Zanzibar, Bagamoyo, and coastal lodges exposed to airborne salt moisture.
- Premium Alternative to Lead-Acid Batteries: Provides a longer lifespan, higher efficiency, and faster recharge compared to traditional deep-cycle lead-acid batteries commonly used in marine and off-grid systems.
- Reliable Power for Marine & Off-Grid Use: Perfect for fishing vessels, yachts, island resorts, and seaside homes, ensuring consistent energy supply for navigation, lighting, refrigeration, and communication systems.
- Supports Tanzania’s Solar and Hybrid Energy Growth: Compatible with solar power and inverter systems, aligning with Tanzania’s rising adoption of renewable energy solutions in marine and residential sectors.
- Durable Design for Tropical Climates: Built to operate reliably in hot, humid, and salt-laden environments, with derating protection outside optimal temperature ranges (10°C–25°C).
- Eco-Conscious and Maintenance-Free: LiFePO₄ chemistry offers non-toxic, recyclable materials and maintenance-free operation, appealing to eco-aware Tanzanian consumers and businesses.
- Trusted by Professionals and Property Developers: Increasingly preferred by marine electricians, off-grid installers, and coastal property owners seeking dependable, long-term energy storage solutions.
- Value-Driven for Long-Term Savings: With 10-year / 6000-cycle warranty, users gain a lower total cost of ownership, making it a smart investment for Tanzania’s marine and coastal renewable energy market.
Technical Specification
| Battery Type | Lithium Iron Phosphate (LiFePO₄) |
| Model Variants | 5kWh / 10kWh / 20kWh / 30kWh |
| Nominal Voltage | 26V DC |
| Nominal Energy Capacity | 5kWh / 10kWh / 20kWh / 30kWh (model dependent) |
| Cycle Life | 6000 cycles @ 80% Depth of Discharge (DoD) |
| End of Life Definition (EoL) | 60% of original capacity |
| Maximum Discharge Load Duration | 30 seconds per 60-second cycle (below continuous rating) |
| Overload Capacity | 1.5 × maximum discharge current for up to 5 seconds |
| Continuous Discharge Temperature Range | Rated for 10°C to 25°C (derating applies outside this range) |
| Charging Temperature Range | Charging below 0°C not permitted |
| Operating Temperature (Recommended) | 10°C to 45°C (extended exposure above 45°C not recommended) |
| Design Environment | Marine and coastal (below deck or sheltered installation) |
| Saltwater Exposure | Not suitable for direct saltwater exposure or above-deck use |
| Seaside Use | Suitable for coastal properties with airborne sea moisture |
| Mounting Accessories | Includes end handles or eye bolts |
| DC Connection Cables | 1.8m long cables: Red = Positive, Black = Negative |
| Conductor Reference | Cable conductor size refers to one electrode (positive or negative) |
| Protection Class | Marine-rated corrosion-resistant design (for enclosed environments) |
| Maintenance | Maintenance-free; no regular servicing required |
| Safety Features | Built-in Battery Management System (BMS) for overcharge, over-discharge, and short-circuit protection |
| Environmental Impact | Non-toxic, recyclable LiFePO₄ chemistry |
| Charging Limitation | Charging not permitted below 0°C; performance derates in cold or hot extremes |
| Recommended Installation | Below deck (marine vessels), indoor or covered areas (coastal properties) |
| Compliance | Designed and tested for marine and stationary applications per Freedom Won standards |








