48V 120Ah lithium battery
- 1. Our 48V 120Ah lithium batteries work life longer than lead-acid batteries, our lithium batteries worklife is 10 years, lead-acid batteries only can work 2-3 years.
- 2. Our 48V 120Ah lithium batteries is lighter than lead-acid batteries, our lithium batteries weight is only 1/3 of lead-acid batteries weight.
- 3. Our 48V 120Ah lithium batteries Charging speed faster than lead-acid batteries, our 48V 120Ah lithium battery full charge around 1.5 hours, 48V 120Ah lead-acid batteries full charge around 9 hours.
48V 120Ah Lithium Battery – Efficient 5.76kWh Power Solution for Solar, Telecom, and Backup Systems
The 48V 120Ah lithium battery provides a compact yet powerful 5.76kWh of energy, making it an ideal solution for off-grid solar systems, telecom backup, industrial UPS, and mobile power applications. Built with high-performance LiFePO₄ (Lithium Iron Phosphate) chemistry, this battery ensures long cycle life, high safety, and maintenance-free operation in demanding environments.
What Is a 48V 120Ah Lithium Battery?
This battery integrates 16 high-quality LiFePO₄ cells in a 48V (or 51.2V) configuration with an intelligent Battery Management System (BMS). The BMS actively monitors voltage, current, temperature, and individual cells to ensure safe and optimal operation. Designed for both stationary and mobile systems, it supports deep cycling, fast charging, and long service life.
Key Features
Total Energy: 5.76kWh (51.2V × 120Ah)
Long Life: 6,000+ cycles @ 80% DoD
Smart BMS Protection: Overcharge, over-discharge, overcurrent, short circuit, and thermal protection
High Efficiency: >98% round-trip efficiency
Fast Charging & High Discharge Capability
Compact and Lightweight: Easier to install than bulky lead-acid batteries
Zero Maintenance: No watering, no acid leaks, no corrosion
Eco-Friendly: Non-toxic, RoHS & CE certified
Optional Customization: Cabinet/rack format, RS485/CAN communication, solar-ready integration
Technical Specifications (Typical)
| Parameter | Specification |
|---|---|
| Nominal Voltage | 51.2V (LiFePO₄, 16S) |
| Rated Capacity | 120Ah |
| Total Energy | 5.76kWh |
| Charge Voltage | 58.4V |
| Cut-off Voltage | 40.0V |
| Max Charge Current | 60A (customizable) |
| Max Discharge Current | 80–100A (customizable) |
| Operating Temp. Range | -20°C to +60°C |
| Cycle Life | 6,000+ cycles @ 80% DoD |
| Communication | RS485 / CAN / Modbus (optional) |
| Protection Rating | IP54–IP65 (based on design) |
| Approx. Weight | ~55–70kg |
Typical Applications
Off-Grid and Hybrid Solar Power Storage
Telecom Towers and Base Station Backup
Industrial Control Systems and UPS
Home Energy Storage (ESS)
Electric Vehicle Charger Buffers
Marine and RV Power Systems
Mobile Energy Trailers and Field Equipment
Advantages Over Lead-Acid Batteries
| Feature | Lithium 48V 120Ah | Lead-Acid Equivalent |
|---|---|---|
| Usable Capacity | Up to 100% | ~50% |
| Cycle Life | 6,000+ cycles | 500–1,000 cycles |
| Maintenance | None | Regular service required |
| Efficiency | >98% | ~70% |
| Charging Time | 2–4 hours | 6–10 hours |
| Safety | High (thermal stability) | Risk of overheating/leakage |
The 48V 120Ah lithium battery is a versatile and efficient energy storage solution for medium-scale applications. Whether you’re powering an off-grid solar cabin, backing up telecom equipment, or integrating battery storage into industrial systems, this battery provides long-lasting, reliable energy without the headaches of traditional technologies.
Power smarter, longer, and cleaner—with LiFePO₄.