# Newmar PT-24-45U Battery Charger [PT-24-45U]

**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)

**This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.**

**Specifications:**

-   Charger Input - Voltage: 115/230v
-   Charger Output - Amps: 45a
-   Charger Output Voltage: 24v
-   Charging Banks: 3
-   Portable: No
-   Inverter Input Voltage: 115/230v
-   Inverter Output Voltage: 24v
-   Outlet Qty: Hardwire
-   Box Dimensions: 10"H x 14"W x 20"L WT: 18 lbs

  
[Quick Guide (pdf)](https://productimageserver.com/literature/quickGuide/102330QG.pdf)  
[Owner's Manual (pdf)](https://productimageserver.com/literature/ownersManual/102330OM.pdf)

## Details

- **Price:** 2712.0 USD
- **Type:** Battery Chargers
- **Tags:** Automotive/RV, Automotive/RV | Battery Chargers, Brand_Newmar Power

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2712.00 USD | In stock |

## Images

- Newmar PT-24-45U Battery Charger [PT-24-45U] Newmar Power

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> Source: [Besafe1st](https://besafe1st.com/products/newmar-pt-24-45u-battery-charger-pt-24-45u)
> Updated: 2026-05-25