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Description
ELECTRICAL SPECIFICATIONS
Nominal Voltage 25.6 V Nominal Capacity 50 Ah Capacity @ 25A 120 min Energy 1280 Wh Resistance ≤60 mΩ @ 50% SOC Efficiency 99% Self Discharge <3% per Month Maximum Modules in Series 1 (Single Use) MECHANICAL SPECIFICATIONS
Dimensions (L x W x H) 13.0 x 6.8 x 8.8” 329 x 172 x 223 mm Terminal Type M8 Terminal Torque 80 - 100 in-lbs (9 - 11 N-m) Case Material ABS Enclosure Protection IP56 Cell Type - Chemistry Cylindrical - LiFePO4 DISCHARGE SPECIFICATIONS
Maximum Continuous Discharge Current 50 A Peak Discharge Current 100 A (7.5 s ±2.5 s) BMS Discharge Current Cut-Off 215 A ±15 A (10 ±5 ms) Recommended Low Voltage Disconnect 22 V BMS Discharge Voltage Cut-Off 16 V (2.0 ±0.08 vpc) (20 ±6 ms) Reconnect Voltage 20 V (2.5 ±0.05 vpc) Short Circuit Protection 200-600 µs CHARGE SPECIFICATIONS
Recommended Charge Current 2.5 A - 25 A Maximum Charge Current 50 A Charge Current 32ºF to 14ºF (0 to -10 ºC) ≤0.1 C Charge Current -4ºF to 14ºF (-20 to -10 ºC) ≤0.05 C Recommended Charge Voltage 28.4 V - 29.2 V BMS Charge Voltage Cut-Off 31.2 V (3.9 ±0.025 vpc) (1.1 ±0.4 s) Reconnect Voltage 30.4 V (3.8 ±0.05 vpc) Balancing Voltage 28.8 V (3.6 vpc) TEMPERATURE SPECIFICATIONS
Discharge Temperature -4 to 140 ºF (-20 to 60 ºC) Charge Temperature* -4 to 113 ºF (-20 to 45 ºC) Storage Temperature 23 to 95 ºF (-5 to 35 ºC) BMS High Temperature Cut-Off 176 ºF (80 ºC) Reconnect Temperature 122 ºF (50 ºC) *Refer to charge currents below 0°C (32°F) COMPLIANCE SPECIFICATIONS
Certifications CE (battery) UL1642 & IEC62133 (cells) Shipping Classification UN 3480, CLASS 9 
