Newmar Power PT-24-20U Marine Battery Charger - 24 Volt Smart Charging System

PT-24-20U Battery Charge

Smart marine battery charging technology for 24-volt systems aboard workboats, military vessels, commercial vessels, and recreational craft. This charger interacts with batteries, providing the optimum three-stage charge process for fast recovery and conditioning, maximizing performance, and extending battery life.

A selector switch adjusts output voltage to adapt to gel-cell, flooded lead-acid, or AGM battery types. An optional temperature compensation sensor also adjusts output for ideal voltage based on changes in the batteries ambient temperature. All models are housed in a rugged stainless steel case with a durable white powder coat finish, and the internal circuitry is polyurethane coated for maximum corrosion resistance.

Features:

• 24-volt model
• Smart circuitry provides three-stage charging bulk, absorption, float
• Gel-cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages
• Multiple isolated output banks; ammeter indicates total output current
• The optional sensor adjusts output voltage based on battery temperature
• Current limiting prevents damage from overloading
• Use as a power supply; can power loads without a battery in line
• Built to last rugged stainless steel case with a durable white powder coat finish with an optional drip shield and marinized internal circuitry
• Protection: Current Limiting, Thermal Protection, Forced Air Cooling, Drip Shield
• Install in conjunction with PT-MCU for additional control and monitoring
• ABS-type approval for battery charging and power supplies

Specifications:

• Input VAC (50-60 Hz.): 85 135, 170 270
• Input Amps @ Full Load: @ 115 VAC: 6.8, @ 230 VAC: 4.3
• Power Factor: .7
• Max Output Amps: 20
• Output Banks: 3
• Battery Capacity (Amp-Hours): 40 200
• Operating Temp. Rating Reference: T-3
• Case Size Reference: A-2
• Case Size (H x W x D): 13.85B x 9.5 x 4.8B inches (35.2B x 24.1 x 12.2B centimeters) *Note with Dripshield installed B add .75 (1.9 cm) to height and 1.35 (3.4 cm) to depth
• Weight Lbs./Kg: 12/6
• Optional Temp. Sensor Model: TCS-12/24
• Remote Panel Model: NA
• Compliance Reference: CG, ABS

Temperature Rating References:

• Temperature: -20 degrees C to +60 degrees C
• Derate Linearly From 100% @ 50 degrees C to 60% @ 60 degrees C

Nominal Output Voltages at Gel/Flooded Switch Settings (without Temperature Compensation):

• Gel-Cell: 28.0 VDC Charge @ 50% load and 27.2 VDC Float @ .5 amp load
• Flooded/AGM: 28.4 VDC Charge @ 50% load and 26.8 VDC Float @ .5 amp load

Compliance References:

• UL: UL 1950 (per DNB report)
• CG: USCG CFR 183.410 (Ignition protected)
• EN: EN 60335-1
• CE: Carries the CE mark
• ABS: PT Series meets SVR 2009 4-8-3/5.9, Under 90 meters Rules 2006 4-6-4/7.19, and HSNC 2007 4-8-3/5.13.

The Newmar Power PT-24-20U marine battery charger is engineered for reliable 24-volt power management on workboats, military vessels, commercial ships, and recreational craft. Featuring advanced three-stage charging technology, it ensures rapid battery recovery, optimal conditioning, and extended battery lifespan by automatically transitioning through bulk, absorption, and float stages. This intelligent circuitry adapts to various battery types, including gel-cell, flooded lead-acid, and AGM, with a simple selector switch for precise voltage regulation. An optional temperature compensation sensor further fine-tunes the charging voltage based on ambient temperature, promoting maximum battery health and performance.

Built for durability, the PT-24-20U is housed in a rugged stainless steel case finished with a weather-resistant white powder coat. The internal circuitry is polyurethane coated, providing exceptional corrosion resistance suitable for demanding marine environments. It features multiple isolated output banks with an ammeter to monitor total output current, ensuring balanced charging and system diagnostics. The unit's design incorporates protective features such as current limiting, thermal protection, forced air cooling, and a drip shield to prevent water ingress and overheating. For enhanced control, it can be integrated with the PT-MCU monitoring system, and it holds ABS-type approval, certifying its compliance with safety and marine standards.

Powering loads directly without a battery, the PT-24-20U also functions as a reliable power supply. It supports battery capacities from 40 to 200 amp-hours, making it suitable for a wide range of marine applications. The charger operates efficiently within input voltages ranging from 85 to 135 VAC and 170 to 270 VAC at 50-60 Hz, with a maximum output of 20 amps per bank. Its compact size and robust construction make it easy to install in tight engine rooms or control panels, while the optional drip shield provides additional protection in harsh marine conditions.

Compliance with UL 1950, USCG CFR 183.410, EN 60335-1, CE, and ABS standards ensures that the Newmar Power PT-24-20U meets rigorous safety and performance requirements. Its temperature operating range from -20°C to +60°C allows versatile deployment in various climates, with linear derating at higher temperatures to safeguard components. For detailed operation and installation instructions, refer to the available owners manual linked on the product page. This high-quality marine battery charger offers dependable performance, advanced features, and durable construction, making it an essential component for maintaining optimal battery health on vessels of all types.

Features:

• Smart three-stage charging process: bulk, absorption, float

• Selector switch for gel-cell, flooded lead-acid, or AGM battery types

• Optional temperature compensation sensor for optimal voltage regulation

• Multiple isolated output banks with ammeter for current monitoring

• Current limiting to prevent overload damage

• Can power loads independently without a battery

• Constructed with a rugged stainless steel case and durable powder coat finish

• Internal circuitry polyurethane coated for maximum corrosion resistance

• Protection features include thermal protection, forced air cooling, and drip shield

• Compatible with PT-MCU control and monitoring system

• Certified to UL, USCG, EN, CE, and ABS standards for safety and marine compliance

• Supports battery capacities from 40 to 200 amp-hours

• Operates efficiently with input voltages from 85-135 VAC and 170-270 VAC