After a day on the water, you plug in expecting both batteries to recover, but one falls behind. This 12-amp, 2-bank charger shifts power where it's needed most, so both batteries charge evenly and are ready by morning.
One of the biggest headaches in a multi-battery setup is ending the day with one weak battery dragging down the whole system while the other doesn't need the same charge. This charger fixes that with a 12-amp, 2-bank layout and Distributed-On-Demand technology that automatically transfers unused charging amps to the battery that needs it most. Instead of sending fixed output to every bank regardless of condition, it shifts charging where the demand is. You end up with a more balanced charge across your trolling motor and engine start batteries, so both batteries are ready without leaving one behind.
Charging gets frustrating when you don't know if the batteries are charging, conditioning, or just sitting there. This unit runs a fully automatic 5-stage digital sequence with Analyze, Charge, Condition, Auto Maintain (Energy Saver), and monthly Storage Recondition, then keeps monitoring the batteries long-term. The expanded LED display adds a fuel gauge style charge completion monitor, a four color multi-stage mode LED bar, and individual battery status indicators that show Full in green or Fault in red for each bank. You can glance at it and see what each battery is doing instead of tracing wires or wondering if the charger is still working. Designed for 110-120 VAC, 60 Hz input, it connects directly to standard shore power commonly used in North America.
Wrong charging profiles are a fast way to create charging problems or shorten battery life, especially when battery chemistry changes across boats and upgrades. This charger gives you selectable charging profiles for Flooded, AGM, Gel, and approved LiFePO4 batteries, so you're not stuck with one generic program. It also supports 12/24 Volts, which matters in setups built around different battery arrangements. When the profile matches the batteries on board, charging behavior stays predictable and you spend less time chasing weak performance that comes from a mismatch instead of the batteries themselves.
Onboard chargers live in rough places, and heat, spray, vibration, or a wiring mistake can turn into a failure at the worst time. This one uses a heavy duty tri-surface extruded heat sink design for optimal cooling and true rated constant current charging, plus 100 percent waterproof IP67 construction for harsh marine environments. Built-in protection covers dual inline waterproof fuses, reverse polarity, over-temperature, over-current, over-voltage, and ignition protection, and the System Check OK indicator confirms proper installation and battery readiness. Once it's mounted and wired correctly, you've got a charger built to stay on the job in the same conditions your battery system already has to live through.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everyone. Steve here with etrailer. Let's take a look at the ProMariner ProSportHD 12 battery charger. And if you're tired of dealing with dead batteries, portable chargers or just constantly swapping out charging cables around the boat, this onboard charger is designed to simplify that whole process. So what we got here is a 12 amp two bank, so I can put it on two different batteries. It doesn't matter if they're different kinds.
This is gonna automatically charge and maintain those two batteries at the same time no matter what their makeup is. And because it mounts permanently inside of your boat, charging becomes simple at that point because now when you're done with the day on the water, when hard work or hard plane and having fun, now you just get back to the dock, plug it in, let it do its thing automatically. It's compact, it's small, it's gonna fit down inside of your battery compartment and not take up a lot of space and just really give you a peace of mind. You will have lit up display here on the unit itself. It's gonna give you different modes, tell you the power and the charging sequence and those kind of things.
So it's pretty impressive. It's small. It's only about 10 1/2 inches long, about 7.9 inches wide and about 3 inches thick. So very small. Again, run some 12 amp charging output, two different batteries, two bank charging, automatic multi-stage charging, and it's waterproof.
So they've made it to be resistant to water and waterproof. They've designed it for marine applications. It can take a beating as far as like waves, things bumping into it, the difference in moisture, heat, cold, those kind of things. So really powerful, easy to use, easy to install. This is the ProMariner ProSportHD.
Folks, I'm Steven with Etrailer. Thanks for watching and have a great day.
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