Fortress 48V 388AH Lithium Ion BatteryOctober 10, 2024
Fortress 48V 388AH Lithium Ion Battery
| Technical Specification eVault 18.5 | |
| Total Energy (Kwh) | 18.5 |
| Capacity (Ah) | 360 |
| Nominal Voltage (V) | 51.2(48) |
| Recommended Charge Current (A) | 45-58.4 |
| Max. Charge Current (continuous) (A) | 100 |
| Max. Discharge Current (continuous) (A) | 170 |
| Max. Pulse Current (for 10 Sec) (A) | 180 |
| Charge Temperature (F) | 200 |
| Discharge Temperature(F) | 32 to 113 |
| Recommend Storage Temperature(F) | 32 to 113 |
| Dimension (W x D x H, inch) | 50 to 95 |
| Weight (Ibs) | 19.2 x 21.3 x 38.8 |
| Enclosure Protection Rating | 476 |
| Mounting Rating | IP21 |
| Certificate | Floor Standing |
| Warranty | UL 1642 |
| Scalability | *5/10 years |
| Communication | Maximum 12 Parallel (222kwh) |
| High Current Breaker | 250A |
| Efficiency | >98% |
| Comparison of different Battery Technologies | |||||||
| Fortress LFP | Lithium Ion | Li-Polymer | Flooded LA | AGM | Carbon AGM | Nickel Iron | |
| Round trip Efficiency | 98% | 95% | 95% | 80% | 88% | 95% | 65% |
| Usable Power (MSRP) | 6900 | 6999 | 4500 | 2800 | 3600 | 5000 | 18000 |
| Cycle Life | 6000 | 2500 | 1500 | 600 | 750 | 2400 | 8000 |
| Off Grid Years | 16.4 | 6.8 | 4 | 2.7 | 2 | 6.5 | 21.9 |
| Cost Per kwh Cycle | 0.11 | 0.28 | 0.30 | 0.46 | 0.48 | 0.21 | 0.23 |
| Safety | Yes | No | No | No | No | No | Yes |
| Free Maintenance | Yes | Yes | Yes | No | Yes | Yes | No |
| *Additional $ 1000 may apply to Flooded LA – Nickel Iron batteries | |||||||
| Fortress Power | Other Lithium Solution | Lead Acid | Generator | |
| Applications | Backup power, time of use,self-use & off grid | Backup power, time of use,self-use & off grid | Backup power | Backup power |
| Depth of Discharge | 100% | 100% | 50% | N/A |
| Potential Harm | Safest technology | Potential fires and thermal runway | Risk ofharmful gases | Environmentalpollution |
| Life Cycles | Up to 6,000 | Up to 3,000 | 500-1,000 | N/A |
| Warranty | 10 years | 10 Years | 2 years | 2 years |
| Fuel Cost | $0 | $0 | $0 | $50-100/day |
| Maintenance | No | No | Yes | Yes |




