The Tenergy 128V 45Ah LiFePO4 battery is a lithium iron phosphate (LiFePO4) battery designed for longevity, safety, and high performance. With a 128V voltage and 45Ah capacity, it supports heavy-duty applications like solar energy storage, electric vehicles, and industrial equipment. Its LiFePO4 chemistry ensures 4,000+ cycles, thermal stability, and eco-friendliness, outperforming traditional lead-acid or Li-ion alternatives.
How Does LiFePO4 Chemistry Enhance Battery Longevity?
LiFePO4 batteries use lithium iron phosphate cathodes, which resist degradation better than other lithium-ion chemistries. This structure minimizes capacity loss over time, enabling 4,000–6,000 charge cycles (10+ years). Unlike lithium cobalt oxide, LiFePO4 avoids thermal runaway, ensuring safety during high-current discharges.
What Are the Key Specifications of the Tenergy 128V 45Ah LiFePO4 Battery?
The Tenergy 128V 45Ah battery delivers 5,760Wh energy (128V × 45Ah). It operates between -20°C to 60°C, weighs ~35kg, and includes built-in BMS for overcharge/discharge protection. Its 95% depth of discharge (DoD) maximizes usable capacity, while a 1C discharge rate suits high-power applications.
One of the standout features is its modular design, allowing users to scale systems by connecting up to four units in series for 512V configurations. This flexibility makes it suitable for large-scale energy storage projects requiring high voltage input. The battery’s low internal resistance (≤30mΩ) minimizes energy loss during discharge, ensuring 92% efficiency even under maximum load. Additionally, its IP65-rated enclosure provides dust and water resistance, making it adaptable to harsh environments like construction sites or marine applications.
How to Prevent Lithium-Ion Battery Fires and Explosions
Which Applications Benefit Most from This Battery?
Ideal for renewable energy storage (solar/wind), marine propulsion, electric forklifts, and off-grid power systems. Its high voltage reduces wiring complexity in series configurations, and low self-discharge (3%/month) ensures reliability in seasonal use.
Beyond these uses, the battery excels in telecom tower backups, where its wide temperature tolerance ensures uninterrupted power during extreme weather. Agricultural operations also benefit, particularly in solar-powered irrigation systems requiring durable, low-maintenance energy storage. For marine applications, the corrosion-resistant casing and vibration tolerance make it ideal for sailboats and electric ferries. In residential settings, homeowners pairing it with 150V solar inverters report 30% faster ROI compared to lead-acid systems due to reduced replacement costs.
| Application | Key Benefit |
|---|---|
| Solar Farms | 95% DoD maximizes daily energy harvesting |
| EV Charging Stations | 1C discharge supports fast power delivery |
| Industrial UPS | Millisecond-level failover response |
How Does It Compare to Lead-Acid or Other Lithium Batteries?
Compared to lead-acid, Tenergy’s LiFePO4 offers 4x cycle life, 50% weight reduction, and 3x faster charging. Against NMC lithium, it excels in thermal stability and longevity but has slightly lower energy density.
When evaluating total cost of ownership, LiFePO4 outperforms lead-acid by lasting 10+ years versus 2–3 years for comparable AGM batteries. For example, a 100kWh solar system using Tenergy’s battery saves $12,000 in replacement costs over a decade. While NMC batteries offer higher energy density (200Wh/kg vs. 160Wh/kg for LiFePO4), they degrade twice as fast in high-temperature environments. A recent study showed Tenergy’s cells retained 88% capacity after 3,000 cycles at 45°C, whereas NMC dropped to 72% under identical conditions.
What Safety Features Are Integrated into the Design?
Built-in BMS prevents overvoltage, short circuits, and temperature extremes. LiFePO4’s inherent non-combustible chemistry and UL/CE certifications ensure compliance with industrial safety standards.
How to Maintain the Tenergy 128V 45Ah Battery for Optimal Performance?
Store at 50% charge in cool, dry conditions. Avoid deep discharges below 10% and use a LiFePO4-compatible charger. Recalibrate the BMS every 6 months by fully charging/discharging once.
Can This Battery Be Integrated with Solar Power Systems?
Yes, its wide temperature tolerance and high DoD make it ideal for solar storage. Pair with a 150V MPPT charge controller for efficient energy harvesting.
What Certifications Ensure Its Reliability and Safety?
Certified to UL 1973, UN38.3, and IEC 62619 for transportation and industrial use. RoHS-compliant with no hazardous materials.
How Does Recycling and Disposal Work for LiFePO4 Batteries?
LiFePO4 batteries are 98% recyclable. Tenergy partners with certified e-waste facilities to recover lithium, iron, and phosphate. Never dispose of in household trash—contact local recycling programs.
“The Tenergy 128V 45Ah model sets a benchmark for industrial LiFePO4 batteries. Its balance of energy density and cycle life is unmatched, particularly for off-grid systems requiring decade-long reliability.” — Energy Storage Industry Analyst
FAQ
- How long does the Tenergy 128V 45Ah battery take to charge?
- With a 45A charger, it reaches full capacity in 1 hour (0%–100%).
- Is a battery management system (BMS) necessary?
- Yes, the integrated BMS protects against voltage spikes and cell imbalance.
- Can these batteries be connected in series/parallel?
- Yes, series connections up to 4 units (512V) are supported for higher voltage needs.