Product Overview
Our 12.8V 50Ah Lithium Iron Phosphate (LiFePO4) Battery (Model: 12.8-50) is purpose-built as a direct, high-efficiency replacement for traditional lead-acid batteries. Engineered to solve the core pain points of lead-acid technology—including short cycle life, high maintenance, and environmental risks—this unit delivers reliable, long-lasting power for critical energy storage applications. With a compact footprint matching most standard lead-acid compartments, it enables seamless, hassle-free upgrades without system modifications, making it ideal for both commercial and residential use cases.
Key Advantages Over Traditional Lead-Acid Batteries
This LiFePO4 battery outperforms lead-acid alternatives in nearly every category, delivering superior value over its lifecycle:
5x Longer Cycle Life: Boasts over 4,000 deep cycles at 80% depth of discharge (DOD), compared to just 500–1,000 cycles for lead-acid batteries, drastically reducing replacement costs and downtime.
70% Lighter Weight: At only ~5.5kg (12.1 lbs), it is significantly lighter than equivalent lead-acid batteries, simplifying installation, handling, and transportation.
Ultra-Low Self-Discharge: Retains 90% of its charge after 6 months of storage (vs. 50–60% for lead-acid), ensuring reliable standby power for UPS and off-grid systems.
Zero Maintenance: No water topping, equalization charging, or corrosion checks required—eliminating ongoing labor costs and safety risks from acid spills.
Eco-Friendly & Non-Toxic: Free of lead, sulfuric acid, and heavy metals, this fully recyclable battery reduces environmental impact and complies with global sustainability standards.
Consistent Extreme Performance: Operates reliably across a wide temperature range (-20°C to 60°C), outperforming lead-acid batteries in both high-heat and cold environments.
Core Product Features
Advanced LiFePO4 Chemistry: Built with high-stability lithium iron phosphate cells for enhanced thermal and chemical safety, minimizing fire and explosion risks.
Integrated Smart BMS: A built-in Battery Management System protects against overcharge, over-discharge, over-current, short circuits, and over-temperature, ensuring optimal cell health and long-term reliability.
Full Global Certifications: Compliant with UL, CE, RoHS, UN38.3, and MSDS standards, guaranteeing safety, quality, and regulatory approval for worldwide use.
Space-Saving Compact Design: Dimensions of 151 × 65 × 97mm make it a perfect fit for standard lead-acid battery compartments, enabling drop-in replacement without system redesign.
Rugged IP54-Ready Casing: Impact-resistant ABS housing protects against dust, moisture, and physical damage, making it suitable for harsh outdoor and industrial environments.
Wide Operating Temperature Range: Designed to perform reliably from -20°C to 60°C, suitable for both indoor and outdoor applications, including remote and off-grid locations.
>Specification
| MODEL | 12V68Ah | 12V120Ah | 12V160Ah | 12V175Ah | 12V280Ah | 12V350Ah |
| Nominal Voltage | 12.8V |
| Nominal Voltage | 40~68Ah | 80~120Ah | 120~160Ah | 150~175Ah | 280Ah | 350Ah |
| Max. Capacity | 870.4Wh | 1536Wh | 2048Wh | 2240Wh | 3584Wh | 4480Wh |
| Cycle Time | >3000 times(0.2C 100%DOD charge and discharge cycle to capacity attenuation to 80%) |
| Self-discharge rate | ≤3.5%(Per month@ 25℃) |
| Charge Voltage | 14.6±0.2V |
| Charge Temperature | 0℃ to 45℃ |
| Discharge Temperature | -20℃ to 60℃ |
| Storage Temperature | 0℃ to 45℃ |
| Waterproof | IP65 |
| Cell | Prismatic cell(Accept customer-specified cell models) |
| Shell Material | ABS |
| Dimensions (L*W*H)mm | 198*166*170 | 260*168*209 | 330*172*215 | 483*170*240 | 522*240*218 | 520*269*220 |
| Terminal | M8 |
Applications
This versatile 12.8V 50Ah LiFePO4 battery is tailored for critical power scenarios where reliability is non-negotiable:
UPS Backup Power Systems: Delivers uninterrupted power for servers, networking equipment, and home appliances during grid outages, preventing costly downtime.
Solar & Wind Energy Storage: Optimized for off-grid and hybrid renewable energy systems, efficiently storing excess solar/wind power for use during low-generation periods.
Off-Grid Lighting Systems: Ideal for solar street lamps, lawn lamps, garden lights, and pathway lighting, providing consistent, long-lasting power for outdoor illumination.
Portable & Stationary Power: Also suitable for small electric vehicles, security systems, and low-voltage industrial equipment where maintenance-free power is essential.
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