After a long day on the water, you plug in and hope all your batteries recover, but one always lags behind. This 3-bank charger shifts its 20 amps to the batteries that need it most, so everything's fully charged and 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 others don't need the same charge. This charger fixes that with a 20-amp, 3-bank layout and Distributed-On-Demand technology that automatically transfers unused charging amps to the batteries that need 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 the system is ready as a complete package instead of leaving one bank 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 bank is doing instead of tracing wires or wondering if the charger is still working. The 100-240 VAC input with universal power cord also makes it usable across different shore power systems without needing a separate charger.
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 12/24/36 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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Hi, everyone. Steve here with etrailer. Let's take a look at the ProMariner ProSport HD 20 Plus battery charger. So if you're running multi-battery setups on your boats, keeping everything charged as you know can turn into a hassle really quick, especially if you're dealing with lots of different portable chargers. You gotta find out which one plugs into what, limited compartment space, or just inconsistent shore power. So it's a lot of headaches, a lot of hassle.
This charger's gonna eliminate and simplify all of that. The ProSport Heavy Duty 20 Plus Global is a 20 amp three-bank onboard marine charger designed to automatically charge and maintain up to three batteries simultaneously. So what's great, it's gonna automatically detect what kind of battery, it's gonna do its thing automatically. It even uses a global port here. So you can buy different adapters depending on where you're at internationally and abroad, and have something that plugs into all the different outlets around the world, and it's gonna automatically sense the variance in those voltages and handle it just like that, no problem.
So pretty nice little kit. It's great for control motor batteries, house successor batteries, cranking batteries, and again, it's gonna be permanently mounted so you don't have to worry about charging or, you know, changing out chargers and those kind of things. It's a one and done kind of deal. So it's been built specifically for those harsh marine environments, so you don't have to worry about, you know, waves hurting it, different temperature variations, moisture, it's been sealed up, it's waterproof, made specifically for all those environments. And each one of our cables here are made to go to the batteries.
And then you got your inline fuse and everything as well. So very easy to set up and install. And then here on the face plate, you're gonna have, these will light up. I know you can't see nothing right now 'cause it's not powered to a battery, but these will give you your status and everything as well. And it's gonna tell you exactly what type of battery it's sensing and all that, even lithium and all those kind of different, AGM, gel, flooded lead.
Basically this handles everything like I mentioned before. So, key features before we go. It's a 20 amp charging output. Again, we mentioned the three-bank charging system. It's automatic multi-stage charging, the global voltage compatibility, and again, just being compact, 13.6 inches long, or about 2.9 inches tall, and about 7.9 inches wide on a width. Folks, I think that's gonna wrap up our quick look together at this ProMariner ProSport HD battery charger. I'm Steven. Thanks for watching.
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