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ContinuousWave: Small Boat Electrical
Onboard 120-VAC Battery Chargers
|Author||Topic: Onboard 120-VAC Battery Chargers|
posted 11-08-2013 11:59 AM ET (US)
ProMariner of New Hampshire have introduced a new line of their ProSport onboard waterproof 120-VAC battery chargers, which they call their Gen3 series. The Gen3 series seem to feature more advanced charging voltage profiles. Here is an excerpt from the owner's manual for a ProSport Gen3:
The charging profile can be altered by changing a "cap" that connects a socket on the charger. The default profile is the set with the black cap, which is said to be useful for lead-acid batteries of flooded cell and AGM construction. There is an alternative profile for gelled electrolyte batteries, set with a gray cap. On certain models there is also an option to install a profile specific to the Optima BLUE TOP deep cycle battery or the Odyssey AGM marine battery; this is set with a blue cap, called the AGM HP programming cap.
This multiple phase charging method seems to be an improvement over earlier models which tended to offer only a constant voltage output for charging. The owner's manual includes this graph showing the voltage characteristics of the ProMariner ProSport Gen3 charger:
Although ProMariner is located in New Hampshire, I believe you will find that their products may be assembled in Asia. Visit
for more information.
I do not have any affiliation with ProMariner, but I have purchased and used one of their chargers, and it has worked well for me for over five years. If I were inclined to buy a new onboard charger, I would give these ProSport Gen3 units a close look.
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