When your pump kicks on and you move the slides while your lights and fans are running, voltage can dip. Choose your charge mode, watch the LCD, and keep steadier 12V power so you can wake up ready to go.
Most stock converters decide when to charge harder and when to back off, so you don't always know what your battery is actually getting. This adjustable converter puts you in control with three selectable modes: fixed voltage, 2-stage, and full 3-stage smart charging. Pick the approach that fits the way you're using your rig, whether you want hands-off charging and maintenance or you want the converter to stay right where you set it.
With 60 amps available, this converter is a good fit when you regularly have several 12V loads going at once, helping your battery recover while you sleep and keeping voltage steadier for the basics. It also supports flooded, AGM, gel, and lithium batteries by letting you manually adjust voltage. So instead of one generic charging pattern on every setup, you can dial in the output your battery calls for, and your setup behaves the way you expect in an RV, a boat, or anywhere you need dependable 12V power.
When your converter keeps jumping between charging modes, your 12V system can feel unpredictable: lights subtly change, fans ramp up and down, and you're left wondering if something is wrong or if it's just the charger doing its thing. Fixed voltage mode solves that by letting you choose one steady output voltage and hold it there, so your gear gets consistent power instead of riding along with boost, normal, and float changes. You get fewer "why did that just change?" moments, you can match a specific voltage your battery prefers, and your voltage stays steadier when multiple loads are going.
The built-in LCD screen shows real-time output voltage, making it easy to confirm that charging is happening at the level you expect. No matter if you're plugged into shore power, running a generator, or testing on the bench, you can watch the voltage climb, settle, and hold where you set it.
The compact, deck-mounted design works for mid-size systems and heavier daily draws. The temperature-controlled fan helps manage heat without adding unnecessary noise. Built-in current limiting, overload, and short-circuit protection support reliable operation whether you're charging overnight or pushing current during short generator runs.
Alternate Instructions
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer. Let's take a quick look at this PowerMax AC to DC Converter with Built-In 3-2-1 Stage Battery Charger. Now if you're looking for something that can both power your 12-volt system and properly charge your batteries, this PowerMax unit's gonna be a great option for you to consider. This is basically an all-in-one AC to DC power converter and smart battery charger. So when you plug into shore power or run a generator, this unit's going to take that standard household AC power and it's going to turn it into clean, reliable 12-volt DC power, the kind that your RV, trailer, or boat actually runs on.
Now on top of powering your lights, fans, and other 12-volt accessories, this also works as a 60-amp battery charger. That means that you're gonna be able to recharge your battery bank quickly and efficiently, even while you're using power inside the RV. This SME version includes a built-in multi-stage charging system, which is really important for battery health. It automatically moves through stages like bulk, absorption, and float, so your batteries charge fast without getting overworked and then they stay topped off for safety once they're full. You can also adjust the voltage if you need to match a specific battery type, whether it's standard, lead-acid, AGM, gel, or even some lithium setups.
And since this has built-in safety protections for things like overloads and overheating, this is designed to be very reliable in real-world use. Now, people typically use this converter charger to replace or upgrade the factory converter in an RV, keep batteries charged on a boat, or run a small off-grid setup when the AC power is available. It's compact, it's easy to mount, and it's gonna give you stable power with a cooling fan that only runs when needed. So let's talk measurements. Looking at the overall length, and I'm including our terminals here, we're sitting pretty close to 9 7/8-inches long.
The overall height is gonna be about 4 3/16 inches. And then the overall width, and I'm including the brackets here, about 8 1/8-inches wide. So this is gonna power your 12-volt system. It's gonna charge your batteries intelligently and it's gonna give you plenty of current, again, up to 60 amps to keep everything running smoothly. If you happen to have any other questions, whether it's about this or anything else that we have here at etrailer, don't hesitate to reach out.
We want to make sure that you're getting exactly what you need. Well, again, my name is Andy. Thank you for joining me.
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