ProMariner ProSport 20 Plus Battery Charger

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ProMariner ProSport 20 Plus Three Bank 12 / 24 / 36 Volt - 20 Amp Output

The ProMariner ProSport 20 Plus (43021) Three Bank On-Board Battery Charger is perfect for many marine and recreation vehicle applications. Fully Automotive and multi-chemistry charging the ProSport is an industry leading battery charger and maintainer all-in-one.


  • ProMar Digital Technology
    • Microprocessor and software controlled pulse charging technology delivering a 40% lighter design than the previous ProSport generation - cooler operating temperature and faster charging.
  • System OK and Bank Trouble Status Indicators
    • Advanced technology eliminates time consuming troubleshooting by clearly indicating system and battery connections are OK or if a fault is present on a specific battery bank.
  • Digital Multi-Stage Performance Charging
    • Fully charge and extend the life of your batteries. Automatically charges, conditions and safely maintains all batteries on board for maximum time on the water.
  • Energy Saver Mode
    • After fully charging and conditioning batteries, the ProSport's Energy Saver Mode will monitor and Auto Maintain batteries onyl when needed, maintaining a full state of charge. This signifcantly reduces AC power consumption, lowers operating costs and maximizes reserve power performance.
  • Storage Recondition Mode
    • During short or long-term storage, ProSport automatically reconditions all batteries on board once a month for maximum battery life and performance.
  • Distributed-On-Demand Technolgy
    • Automatically charges and maintains your engine crank battery while distributing all remaining charging amps to trolling motor or house battery(s).
  • Digital LED Display and Battery Type Select
    • LED indicators for Charging, Conditioning and Auto Maintain mode in addition to AC power and selected battery type.
  • Built-in Quality & Safety
    • Compact and rugged extruded aluminum design, dual in-line DC safety fuses for trolling motor and house battery bank. built-in over-voltage, overload, over-temperature, reverse polarity and ignition protection.
  • Pre-wired for East Installation
Additional Information
SKU 43021
Brand ProMariner / On-Board Solutions
Charger Series ProSport
Output Voltage 12 Volt, 24 Volt, 36 Volt
Charger Input Voltage 90-135 VAC
Charger Type On-Board
Charger Output 20 Amps
Charger Outputs 3 Bank
Charger Mode Automatic
Charger Application Marine / RV
Length 12.125"
Width 7.25"
Height 2.75"
California Compliant Yes
Warranty 2 Years

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