I have read about horror stories of people trying to return damaged batteries. I considered this to be cheap insurance against that.
Good working battery
| Mechanical | Shell Type | Metal |
| Size | 908 x 620 x 218 mm / 35.75 x 24.41 x 8.58 in | |
| Weight | 118kg±3% / 260.15lbs±3% | |
| Electrical Characteristics |
Nominal Voltage | 51.2V |
| Nominal Capacity | 300Ah | |
| Energy | 15.36kWh | |
| Terminal | M8 | |
| Cycle Life | 6000@DOD80% | |
| Months Self Discharge | s3%/Month | |
| Efficiency Of Charge | 100%@0.2C | |
| Efficiency Of Discharge | 96~99%@0.5C | |
| Standard Charge | Charge Voltage | 57.6V±0.8V |
| Charge Mode | CC/CV | |
| Charge Recommended Current | 60A | |
| Max. Continuous Charge Current | 200A | |
| Standard Discharge | Discharge Recommended Current | 150A |
| Max. Continuous Discharge Current | 200A | |
| Discharge Cut-Off Voltage | 40V | |
| Environmental | Charge Temperature | 32°F~131°F/0°C~55°C |
| Discharge Temperature | -4°F~140°F/-20°C~60°C | |
| Storage Temperature | 32°F~113°F/0°C~45°C | |
| Ingress Protection Rating | IP54 |