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Parallax Power Supply 4400LBU Lithium Battery Charging Module

Manufacturer

Parallax Power Supply

<h3>About Parallax Power Supply</h3><p>When it comes to keeping your RV powered up and ready for the open road, few names carry as much weight as <strong>Parallax Power Supply</strong>. With roots stretching back to the early 1970s, Parallax has spent more than five decades refining and pioneering the electrical systems that RV owners depend on every day. Their converter/charger technology was among the first in the industry to adopt multi-stage charging, and that commitment to engineering excellence has never wavered.</p><p><a href="/7486-parallax-power-supply-battery-charger-14307">Battery chargers and converter/charger systems</a> sit at the heart of the Parallax lineup. Their proprietary <strong>TempAssure&trade;</strong> technology intelligently manages charging rates based on battery temperature, helping extend battery life and prevent overcharging — a level of sophistication that sets Parallax apart from generic alternatives. Whether you need a deck-mount unit or a full power center, Parallax offers solutions sized from 30 amps to 75 amps and beyond to match virtually any RV electrical load.</p><p>For RVers who need to run AC appliances off their house batteries while off-grid, Parallax also produces a range of <a href="/7486-parallax-power-supply-inverters-202149">power inverters</a> designed to seamlessly convert DC battery power into usable AC electricity. Paired with a Parallax converter/charger, an inverter rounds out a complete, self-sufficient onboard power system.</p><p>Reliable power distribution is just as important as generation. Parallax manufactures <a href="/7486-parallax-power-supply-circuit-breaker-2504">circuit breakers</a> that are ETL-listed and certified by Intertek to meet OSHA safety standards — giving you confidence that your RV&apos;s electrical circuits are properly protected. Complementing these, their <a href="/7486-parallax-power-supply-fuse-blocks-202018">fuse blocks</a> provide clean, organized DC distribution, with multi-circuit panels that support independent fusing for every load in your rig.</p><p>Rounding out the ecosystem, Parallax supports <a href="/7486-parallax-power-supply-vehicle-battery-2476">vehicle battery</a> applications, ensuring compatibility between their charging systems and the batteries that store your power. All Parallax products are <strong>manufactured in North America</strong> and built with durable steel enclosures — the same construction standards used in residential and industrial electrical systems.</p><p>Whether you are outfitting a new camper or upgrading an aging power center, Parallax Power Supply delivers the engineering depth and product breadth to handle the job with confidence.</p>

Part Number

4400LBU
06/01/2036 12:27 PM
Sale Price

$48.96

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Parallax Power Supply 4400LBU is a specialized lithium battery charging module designed to provide optimal charging performance for lithium battery systems in RVs, marine vessels, and other mobile applications. This module upgrades existing Parallax power converter systems to safely charge lithium batteries with the proper voltage profiles.

Key Features:

  • 4-hour charging cycle at 14.0 VDC for efficient lithium battery charging
  • 13.9V float mode maintains full charge without overcharging
  • Compatible with multiple Parallax converter series: 8300, 5300, 5400, 4400, 45RU, 55RU, 5355R, and 6345RU
  • Assembled in North America using US steel construction
  • ETL safety listed for reliable operation
  • Easy plug-and-play installation into compatible Parallax power centers

This charging module is essential for RV and marine owners who have upgraded to lithium batteries, as it provides the specific charging voltage profiles required for lithium chemistry versus traditional lead-acid batteries. The module prevents overcharging and ensures your lithium batteries receive the optimal charge for longevity and performance.

Muy bueno

Shipping took wayyyy to long.

purchase was simple

The ordering process was very smooth, order processing was very quick, the big fault in the process was the transportation for final delivery.

Easy ordering. Fast delivery

Went very good . Simple

Shipped out quick and product arrived in perfect condition. All good

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