Power Method: DC/DC 150W for 22 - 60V Input, DC Terminal, Block for 54V Output 
Power Supply DC/DC 150W for 22 - 60V Input 
Supported Voltage Range: DC/DC for 22 - 60V Input, 54V Output 
Battery Type: 2/3/4 Series Lead Acid Battery 
Maximum Charging Voltage: 
- 2 Series: 26.8 - 27.5V 
- 3 Series: 40.2 - 41.2V 
- 4 Series: 53.6 - 55V 
Discharge Protection Voltage: 
- 2 Series: 21.5V 
- 3 Series: 32V 
- 4 Series: 43V 
Charging Current: 
- 2 Series: 0.3A 
- 3 Series: 0.3A 
- 4 Series: 0.2A 
LED: System On/Off 
ESD/EMP Protection: Air +/- 8kV; Contact +/- 6kV 
Operating Temperature: 0 to 40 C (32 to 104 F) 
Operating Humidity: 10 to 90% Noncondensing 
Certifications: CE, FCC, IC