General Overview
The ProSport Charger is an advanced electronic and fully automatic multi-stage on-board marine
battery charger. ProSport is pre-wired for easy installation and is 100% waterproof for fresh and
salt water applications. ProSport's multi-stage charging process delivers five modes of operation
that include: start up diagnostics, charging, conditioning, auto maintain and storage reconditioning
of each battery. This process is proven to extend the life of your batteries and will fully charge your
batteries each time you connect to AC power. ProSport delivers increased power and performance
while providing improved durability and heat transfer.
The ProSport Distributed-On-Demand™ Charging Technology will automatically sense and
distribute 100% of the available charging output of 8,12, 15 or 20 amps (model specific) to any
one battery or combination of all batteries. Each battery charger output is fully isolated. ProSport's
easy to view LED indicators will provide at a glance status of: AC power, battery type, charging, and
ready status. The LED status center also includes an indication of a fault or failure detected at each
battery that is connected to the charger and can be seen on the top of the unit when installed.
Note: ProSport On-Board Marine Battery Chargers are designed for any combination
of group 24,27,30 and 31 batteries. Each battery charger DC output cable must be
connected to one (1) 12 Volt DC battery (even if batteries are configured for 24 Volt DC or
36Volt DC trolling motor or system applications).
Important: The pair of red and black wires in 1 cable jacket MUST GO TO THE SAME 12VDC battery.
Each charger cable must
be connected to 1 battery,
just as shown. Observe
black to (-) and red to (+).
Do this for each battery.
When connecting to an engine start battery only connect the battery bank cable that is LABELED:
"FOR ENGINE BATTERY, USE THIS BANK CABLE ONLY".
Application Tip
If your application is for 4D or 8D large capacity batteries, please refer to ProMariner's website
www.promariner.com and view our ProNauticP Hardwired Charger Assortment for a model that
is correct for this group size of batteries.
Most specifically you do not have to remove series or parallel jumper cables to use your ProSport
charger. See typical wiring diagrams for these systems in the installation section of this manual.
Note: The ProSport must be connected to batteries to operate. It will not operate as a 12 volt
power supply.
G E NE R AL OVERVI E W
black (–)
Group size 24
cable jacket
red (+)
thru 31 only
8