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Description

ELECTRICAL SPECIFICATIONS
Nominal Voltage 12.8 V
Nominal Capacity 52 Ah
Capacity @ 25 A 120 min
Energy 640
Resistance ≤50 mΩ @ 50% SOC
Efficiency 99%
Self Discharge <3% per Month
Maximum Batteries Connected in Series 1 (Single-use)
MECHANICAL SPECIFICATIONS
Dimensions (L x W x H) 7.8 x 6.5 x 6.8” (197 x 166 x 173 mm)
Weight 14.1 lbs (6.38 kg)
Terminal Type M8 x 1.25 x 12mm
Terminal Torque 80 – 100 in-lbs (9 – 11 N-m)
Case Material ABS
Enclosure Protection IP66
Cell Type – Chemistry Cylindrical – LiFePO4
DISCHARGE SPECIFICATIONS
Maximum Continuous Discharge Current 50 A
Peak Discharge Current 100 A (7.5 s ±2.5 s)
Discharge Over-Current Protection 150 A ±20 A (10 ±5 ms)
Recommended Low Voltage Disconnect 11.0 V
Discharge Under-Voltage Protection 9.3 V (2.325 ±0.08 vpc) (140 ±60 ms)
Reconnect Voltage 10.5 V (2.625 ±0.1 vpc)
Short Circuit Protection Response Time About 100 μs
CHARGE SPECIFICATIONS
Recommended Charge Current 2.5 A – 25 A
Maximum Continuous Charge Current 50 A
Charge Current 14 to 32 ºF (-10 to 0 ºC) ≤0.1 C (5 A)
Charge Current -4 to 14 ºF (-20 to -10 ºC) ≤0.05 C (2.5 A)
Recommended Charge Voltage 14.2 V – 14.6 V
BMS Charge Voltage Cut-Off 15.4 V (3.85 ±0.025 vpc) (1.1 ±0.4 s)
Reconnect Voltage 14.5V (3.62 ±0.5 vpc)
Balancing Voltage 14.4 V (3.6 ±0.025 vpc)
TEMPERATURE SPECIFICATIONS
Discharge Temperature -4 to 140 ºF (-20 to 60 ºC)
Charge Temperature -4 to 113 ºF (-20 to 45 ºC)
Recommended 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)
HEATING ELEMENT SPECIFICATIONS
Heating Temperature Range -4 to 41 ºF (-20 to 10 ºC)
Heating Time 1 hr @ 4 A
COMPLIANCE SPECIFICATIONS
Certifications UN38.3 (battery)
UKCA & CE (battery)
UL1642 (cells) (File# MH64523)
IEC62133 (cells)
Shipping Classification UN 3480, CLASS 9

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