Newmar Power PT-24-45U Marine Battery Charger for 24-Volt Systems

PT-24-45U Battery Charger

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.): 90 264
• Input Amps @ Full Load: @ 115 VAC: 12, @ 230 VAC: 7
• Power Factor: .98@115V and .95@230V
• Max Output Amps: 45
• Output Banks: 3
• Battery Capacity (Amp-Hours): 90 450
• Operating Temp. Rating Reference: T-5
• Case Size Reference: A-4
• Case Size (H x W x D): 14.8B x 9.6 x 5.6D inches (37.6D x 24.4 x 14.2D centimeters) *Note with Dripshield installed D add 1 (2.54 cm) to height and .5 (1.2 cm) to depth
• Weight Lbs./Kg: 12/6
• Optional Temp. Sensor Model: TCS-12/24
• Remote Panel Model: RP
• Compliance Reference: EN, CE, ABS

Temperature Rating References:

• Temperature: -20 degrees C to +70 degrees C
• Derate Linearly From 100% @ 50 degrees C to 50% @ 70 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.

Options:

• Remote Panel, model RP, for use with all models except PT-24-20U, PT-24-60, and PT-32-25 (LEDs indicate charger output stage. Manual re-initialization of three-stage charge cycle. With 25 of cable. Panel dimensions: 3 H x 4.75 W)

The Newmar Power PT-24-45U Battery Charger is designed for reliable and efficient charging of 24-volt marine battery systems on workboats, military vessels, commercial ships, and recreational craft. Featuring advanced smart circuitry, this charger utilizes a three-stage charging process—bulk, absorption, and float—to ensure fast recovery, optimal conditioning, and extended battery life. The charger automatically adapts its output voltage based on battery type, with a selector switch for gel-cell, flooded lead-acid, or AGM batteries, providing precise and safe charging tailored to your specific needs. An optional temperature compensation sensor adjusts the voltage in response to ambient temperature changes, further optimizing battery performance and longevity.

Constructed with a rugged stainless steel case and finished with a durable white powder coat, the PT-24-45U is built to withstand harsh marine environments. The internal circuitry is polyurethane coated for maximum corrosion resistance, ensuring long-term durability. Multiple isolated output banks allow for versatile battery management, and an integrated ammeter provides real-time output current monitoring. Additional protection features include current limiting, thermal protection, forced air cooling, and a drip shield, making it suitable for demanding maritime conditions.

This charger can also serve as a power supply, capable of powering loads without a battery in line, offering versatile functionality. When paired with the PT-MCU, it provides enhanced control and monitoring capabilities. Its compliance with industry standards such as UL, CE, and ABS certifications guarantees safety and reliability. The PT-24-45U has a maximum output of 45 amps across three banks and supports battery capacities from 90 to 450 amp-hours, making it suitable for a wide range of marine applications. Its compact size and robust design make it an ideal choice for demanding marine environments where reliable power management is critical.

Features:

• Smart circuitry provides three-stage charging: bulk, absorption, float

• Selector switch for gel-cell, flooded lead-acid, or AGM battery types to optimize charge and float voltages

• Multiple isolated output banks with ammeter for total output current monitoring

• Optional temperature sensor adjusts output voltage based on ambient temperature

• Current limiting feature prevents overload damage

• Can be used as a power supply to load loads without a battery in line

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

• Protected with current limiting, thermal protection, forced air cooling, and a drip shield

• Compatible with PT-MCU for advanced control and monitoring

• Approved under UL, CE, and ABS standards for marine and industrial use