Submarine Battery Chargers / Dischargers

Submarine Battery Chargers / Dischargers

from 5KW to 2MW

Submarine Battery Chargers; Submarine Battery Dischargers; High Current Battery Chargers

High Current

PCTI offers rugged high current submarine battery chargers to meet all of your high-current industrial charging applications from 25 to 2000A and up to 1000V.

Submarine Battery Chargers; Submarine Battery Dischargers for your application

For Marine Application

PCTI’s high current battery chargers and systems are at work today in a variety of industrial, commercial, and military applications. Each unit is based on standard designs and custom engineered to meet your specific application.

Submarine Battery Chargers; Submarine Battery Dischargers Custom Built

Custom Built

PCTI's high current battery chargers are built to customer order from a range of standard power and control modules, and offer high performance, high reliability and sophisticated control systems. A variety of computer interfaces are available to meet all of your programming and control requirements.

Submarine Battery Chargers; Submarine Battery Dischargers

PCTI Submarine Battery Chargers / Discharger Solutions

Our standard battery charger includes a battery eliminator, float and equalize adjustments, manual equalize timer, automatic shutdown and restart under a variety of fault conditions, low ripple, and paralleling capability. Options include computer interface, discharge capability, DC circuit breaker, temperature compensation circuit and more.

If you need help in specifying your submarine battery charger / discharger needs, contact PCTIrequest a quote or download our battery charger brochure.

• 110, 115, 120, 130, 200, 208, 230
• 208, 220, 230, 380, 415, 440, 460, 480, 575

• 48V, 80V, 125V, 250V to 600V and others as requested
• 25 to 2000A
Voltage Adjust:
• + 5% of rated output voltage for any load variation from 0 to 100% with separate equalize and float voltage settings
• 85% minimum

• Six-pulse or 12 pulse thyristor bridge rectifier
• Constant Current Control
• Constant Voltage Control
• Automatic Crossover
• Regulated Voltage
• Regulated Current
• Automatic Phase Selection
• Soft Start with batteries disconnected
• Automatic Restart to Float Mode after loss and restoration of AC input power
• Manual selection of float or equalize charge mode
• Float Voltage Control per NEMA PE-5 depending on battery type
• Equalize Voltage Control per NEMA PE-5 depending on battery type
• Battery Charger can act as a DC power supply with batteries disconnected



• AC input circuit breaker
• AC and DC surge protection up to 5000 volts.
• Automatic Equalize Control automatically places charger in float mode after an AC power failure or charger shutdown
• Overcurrent/Overload: 120% for 2 hours
• Overvoltage
• Overtemperature
• Input and Output MOVs

• Float Level Control Potentiometer
• Equalize Level Control Potentiometer
• Equalizing Timer 0 to 24 hours operable in the manual equalize mode
• On/Off Switch
• Float/Equalize Selector Switch
• AC power ON Indicator
• Analog or Digital Voltmeter
• AC power ON Indicator
• Analog or Digital Ammeter
• Float Charge Selected Indicator
• Equalize Charge Selected Indicator
• Rectifier Failure Alarm Indicator
• Input AC Failure Alarm Indicator
• DC Undervoltage Alarm Indicator
• DC Overvoltage Alarm Indicator
• Note: Alarms can provide front panel indication, remote indication, audible alarm and/or shutdown of the battery charger depending on customer requirements

Analog Signals:
• 4-20mA, 0-5V, 0-10V
Computer Interface:
• Ethernet, profibus, Modbus, CANbus, IEEE 488.2 / GPIB, RS232, RS485
• Start/Stop, Reset, Fault, Current Adjust, Voltage Adjust, Fault Indication, Float selected, Equalize selected

Enclosure Type:
• Nema 1 indoor, Nema 12 dust resistant, Nema 3R outdoor or Nema 4 Airtight (with air to air heat exchanger)
• Forced Air Cooling or Natural Convection
• To 10,000 ft without derating
• Operating: 0 to 50C;
• Storage: -40C to 65C
• Up to 90% non-condensing

• DC Output Circuit Breaker
• Battery Eliminator
• Very low ripple
• Optional alarm conditions: Output circuit breaker off, Over temperature, Ground Fault Failure
• Audible alarm horn
• Remote/local selector switch
• Remote Control via analog signal or Computer Interface (RS232, IEEE488, GPIB)
• Equalize Timer 0 to 24 hours
• Blocking Diode to block feed-back through the charger during AC power failure, being remotely turned off, charger internal failure, or other shutdown conditions
• Output diode for reverse polarity protection
• Battery Temperature Compensation
• Parallel and Load Sharing
• Delayed Start (charge during off-peak hours)
• Ground Fault Protection and/or detection
• Battery discharge back to the power line