Select Page



Automatic Multi-Stage Charging – Charges and conditions batteries with a built in safe maintenance mode.


ProMariner’s Heavy Duty Recreational series ProSport 20 Plus Triple Bank on-board marine battery charger provides fast charge times for increased power and performance. Waterproof and saltwater tested.

The Distributed-On-Demand technology advantage ensures 100% of the available charging amps are fully utilized to meet the demand of each battery on-board. Using a smaller ProSport 12 for example, if your Bank #1 Starting Battery only needs 2 amps from the ProSport 12 (6/6) two bank charger, the remaining 4 amps will be automatically Distributed-On-Demand to Bank #2 providing a total of 10 amps to that battery(ies). Conventional chargers often have amp limitations per bank. A conventional 5/5 10 amp charger cannot tranfer any unused amps from the first bank to a second battery bank.

The ProSport 20Plus features a sequential Multi-Stage Charging process that delivers three sequenced modes of operation that includes; Charging, Conditioning and Maintenance of each battery. This process is proven to extend the life of your batteries and will fully charge the batteries each time.

  • Distributed-On-DemandTM Technology – Automatically senses and distributes 100% of available charging amps to any one bank or combination of all banks
  • Automatic Multi-Stage Charging – Charges and conditions batteries with a built insafe maintenance mode for long and short term storage
  • Extruded Aluminum Housing – For superior heat transfer and durability
  • Waterproof and Shock Resistant – Saltwater tested for coastal sport fishing and boating
  • Lead Acid/STD AGM, Gel and (HP) AGM Battery Selectable – One time user selector provides optimum charge for either battery type
  • Dynamic Thermal Output Control – Provides appropriate charging amps to your batteries while maintaining recommended charger temperature
  • Built-in Protection – Reverse polarity, ignition & temperature protection
  • LED Power and Charge Indicators – At-a-glance power and charging status
  • Pre-wired for Easy Installation
  • 12 or 24 volt systems.
  • 2 Year Warranty

Additional information

Weight3 lbs
Dimensions9 x 22 x 12 in
MFG Part#


Product Categories

Free Shipping on most orders over $100 in Canada! Dismiss

Search our store..
Generic filters
Search in title
Search in content
Search in excerpt
Exact matches only
Search in comments
Filter by Custom Post Type