Newmar PT40U 12v 40AMP Charger 115/230V Input
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Newmar PT40U 12v 40AMP Charger 115/230V Input Product Description
Why the Newmar PT40U Stands Out for Marine and RV Power Needs
Powering your boat, yacht, or RV demands reliability, especially when you're far from shore or on extended trips. The Newmar PT40U delivers with its smart three-stage charging that revives deep-discharged batteries quickly while protecting them from overcharging. Designed for tough marine environments, this 40-amp charger handles flooded, gel-cell, and AGM batteries across three isolated banks, ensuring even charging for house banks, engine starts, or thrusters.
Its fully universal input from 90-264 VAC means it adapts seamlessly to varying power sources worldwide—perfect for international cruisers or fluctuating dockside outlets. Forget voltage mismatches; this charger keeps your systems humming without downtime.
Mastering Three-Stage "Smart" Charging for Longer Battery Life
Traditional chargers can boil batteries dry or leave them undercharged. The PT40U's Phase Three technology changes that:
- Bulk Stage: Pushes maximum current to rapidly recover deeply discharged batteries—up to 40 amps total across banks.
- Absorption Stage: Tapers voltage to fully saturate cells without gassing, tailored for your battery type via a simple selector switch.
- Float Stage: Maintains optimal voltage indefinitely, ready for immediate use and preventing sulfation.
This process not only extends battery lifespan by 50-100% in real-world tests but also maximizes usable capacity, so you get more runtime from anchors to air conditioning.
Built Tough for Harsh Conditions
Housed in a rugged stainless steel chassis with a durable white powder coat, the PT40U resists salt spray, humidity, and corrosion. Internal polyurethane-coated circuitry shrugs off moisture, making it ideal for engine rooms or exposed bilges. At 14.1 x 9.5 x 4 inches and just 12 pounds, it fits tight spaces without weighing down your setup.
Safety features like current limiting prevent overloads, while clear LED indicators and an ammeter show real-time status. Use it as a standalone power supply for DC loads—no battery required—saving space and simplifying systems.
Versatile Features Tailored for Boaters and RV Enthusiasts
- Three isolated banks for independent charging of multiple battery groups.
- Battery type selector: Gel (14.0V charge/13.6V float), Flooded/AGM (14.2V/13.4V).
- Optional temperature sensor (TCS-12/24) auto-adjusts for hot engine bays or cold decks.
- Equalize mode for flooded batteries to balance cells and fight sulfation.
- Remote panel option for dash monitoring.
- Wide temp operation: Full power up to demanding marine conditions.
Pro tip: Pair with a battery monitor for precise state-of-charge tracking, optimizing your off-grid adventures.
Easy Installation and Everyday Reliability
Mount it vertically or horizontally with standard brackets. Connect AC input to shore power or a generator, DC outputs to batteries with appropriately sized cable (10-8 AWG recommended for 40A runs). It hums quietly, draws efficiently (8.5A at 115V, 4.3A at 230V), and complies with key marine safety standards.
Owners rave about its plug-and-play simplicity—charge multiple house banks overnight and wake to full power. In commercial setups like fishing boats or work vessels, it handles heavy cycles without faltering.
Real-World Applications and Pro Tips
Ideal for 80-400 amp-hour banks on mid-size yachts, liveaboards, or RVs. Use one bank for starting batteries, two for house loads. For lithium upgrades? Check compatibility, but its AGM/gel profiles work great with lead-acid hybrids.
Maintenance is minimal: Wipe exterior, check connections yearly. Avoid direct water exposure; opt for the drip shield in wet areas. This charger pays for itself by slashing battery replacements.
Frequently Asked Questions
What types of batteries does the Newmar PT40U support?
It works with flooded lead-acid, gel-cell, and AGM batteries. Use the selector switch to match your setup for optimal charging.
How many battery banks can the PT40U charge simultaneously?
Three isolated banks allow independent charging, perfect for separating starting and house batteries.
What is the input voltage range for this charger?
Fully universal 90-264 VAC input handles 115V or 230V sources worldwide, 50/60 Hz.
Does it include temperature compensation?
Yes, optional TCS-12/24 sensor adjusts output based on battery temperature for precise charging in varying climates.
Can this charger be used without batteries connected?
Absolutely—it functions as a regulated DC power supply for direct loads, saving space in simple systems.
What are the dimensions and weight of the PT40U?
Compact at 14.1 inches long, 9.5 inches wide, 4 inches high, and 12 pounds for easy mounting.
What safety features does it have?
Current limiting, reverse polarity protection, overheat shutdown, and compliance with marine ignition protection standards.
Is there an equalize function for maintenance?
Yes, for flooded batteries—manually trigger to desulfate and balance cells periodically.
40 Amp Phase Three Series Battery ChargerThe "Smart" Charger for Almost Any ApplicationPhase Three "Smart" battery charging technology allows you to select the right size, features and flexibility you require for virtually any application from small recreational craft to large live-aboards, workboats and other commercial vessels. These chargers interact with batteries to put them through the optimum three stage charge process which provides for fastest recovery and ideal conditioning, maximizing battery performance and extending battery life.A selector switch adjusts output voltage to adapt for gel-cell/flooded lead-acid/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 choice of a natural or durable white powder coated finish, and the internal circuitry is polyurethane coated for maximum corrosion resistance.
NewMar PT40U Attributes
- Number Of Banks: 3
- Application: Flooded, Gel, AGM
- Output Voltage: 12 Volt
- Input Voltage: 90 To 264 Volt
- Ampere Rating: 40 Amp Charging
- Universality: Fully Universal
- Length (IN): 14.1 Inch
- Width (IN): 9-1/2 Inch
- Height (IN): 4 Inch
NewMar PT40U Features & Benefits
- Smart circuitry provides three stage charging--bulk, absorption, float.
- Multiple isolated output banks; ammeter indicates total output current.
- Optional sensor adjusts output voltage based on battery temperature.
- Current limiting-prevents damage from overloading.
- Charger status clearly displayed with L.E.D., ammeter, or optional remote panel.
- Use as a power supply; can power loads without a battery in line.
- Optional drip shield and marinized internal circuitry.
- Numerous Safety and EMC Compliances
- Limited Two year parts and labor warranty
Three Stage "Smart" Chargers
Phase Three "Smart" battery charging technology is now available in a wide range of power levels, allowing you to select the right size, features and flexibility you require for virtually any application from small recreational craft to large live-aboards, workboats and other commercial vessels. These chargers interact with batteries to put them through the optimum three stage charge process which provides for fastest recovery and ideal conditioning, maximizing battery performance and extending battery life.
A selector switch adjusts output voltage to adapt for gel-cell/flooded lead-acid/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
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"Smart" circuitry provides three stage charging?bulk, absorption, float.
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Wide model range covers battery system ratings from 14-950 amp-hours
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Gel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages.
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Multiple isolated output banks; ammeter indicates total output current. (except PT-7)
-
Optional sensor adjusts output voltage based on battery temperature. (except PT-7)
-
Current limiting-prevents damage from overloading.
-
Charger status clearly displayed with L.E.D. and/or audible indicators or optional remote panel.
-
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.
-
Numerous Safety and EMC CompliancesTwo year parts and labor warranty
Models
| 12 Volt | 24 Volt | 32 Volt |
| PT-7 | PT-24-8W | PT-32-25W |
| PT-14W | PT-24-13W | |
| PT-25W | PT-24-20U | |
| PT-40U | PT-24-45U | |
| PT-80 | PT-24-60W | |
| PT-24-95U | ||
| Detailed specifications below. | ||
Specifications
| 12 Volt Models | PT-7 | PT-14W | PT-25W | PT-40W | PT-80 |
| Input VAC (50-60 Hz.) | 88-132 or | 85-264 | 90-132 or | 85-135 or | 90-264 |
| Input Amps @ Full Load | |||||
| @ 115 VAC | 2 | 2.8 | 6.5 | 8.5 | 12 |
| @ 230 VAC | 1 | 1.4 | 4 | 4.3 | 7 |
| P.F. Rating | >.65 | .93@230V | .7 | .7 | .95@230V |
| Max Output Amps | 7 | 14 | 25 | 40 | 80 |
| Output Banks | 2 | 3 | 3 | 3 | 3 |
| Battery Capacity (Amp-Hours) | 14-70 | 28-140 | 50-250 | 80-400 | 160-800 |
| Operating Temp. | T-1 | T-2 | T-4 | T-5 | T-7 |
| Case Size Ref. | A-1 | A-2 | A-2 | A-3 | A-5 |
| Weight; Lbs./Kg. | 3.2/1.5 | 8/4 | 8.2/4 | 12/6 | 15.2/7 |
| Optional Temp.Sensor Model | N/A | TCS-12/24 | TCS-12/24 | TCS-12/24 | TCS-12/24 |
| Remote Panel Model | N/A | RP | RP | RP | RP |
| Equalize Option | No | Yes | Yes | Yes | Yes |
| Output Indicator Ref. | M-1 | M-3 | M-3 | M-3 | M-3 |
| Compliance Ref. | CG, CE | CG, CE | CG | CG, CE | CE |
| 24 Volt Models | PT-24-8W | PT-24-13W | PT-24-20U | PT-24-45U | PT-24-60W | PT-24-95U |
| Input VAC (50-60 Hz.) | 85-264 | 90-132 or | 85-135 or | 90-264 | 207-253 | 90-264 |
| Input Amps @ Full Load | ||||||
| @ 115 VAC | 2.8 | 6.5 | 8.5 | 12 | NA | 26 |
| @ 230 VAC | 1.4 | 4 | 4.3 | 7 | 13 | 14 |
| P.F. Rating | .93@230V | .7 | .7 | .95@230V | .7 | .95@230V |
| Max Output Amps | 8 | 13 | 20 | 45 | 60 | 95 |
| Output Banks | 3 | 3 | 3 | 3 | 3 | 3 |
| Battery Capacity (Amp-Hours) | 16-80 | 26-130 | 40-200 | 90-450 | 120-600 | 180-950 |
| Operating Temp. | T-2 | T-3 | T-5 | T-8 | T-6 | T-8 |
| Case Size Ref. | A-2 | A-2 | A-3 | A-5 | A-6 | A-6 |
| Weight; Lbs./Kg. | 8/4 | 8.2/4 | 12/6 | 12.2/6 | 24.1/11 | 24.5/11 |
| Optional Temp.Sensor Model | TCS-12/24 | TCS-12/24 | TCS-12/24 | TCS-12/24 | TP | TCS-12/24 |
| Remote Panel Model | RP | RP | RP | RP | N/A | RP |
| Equalize Option | Yes | Yes | Yes | Yes | No | Yes |
| Output Indicator Ref. | M-3 | M-3 | M-3 | M-3 | M-2 | M-3 |
| Compliance Ref. | CG, CE | CG | CG, CE | EN, CE | EN, CE | EN, CE |
| 32 Volt Model | PT-32-25W |
| Input VAC (50-60 Hz.) | 104-126 |
| Input Amps @ Full Load | |
| @ 115 VAC | 15 |
| @ 230 VAC | N/A |
| P.F. Rating | .7 |
| Max Output Amps | 25 |
| Output Banks | 3 |
| Battery Capacity (Amp-Hours) | 50-250 |
| Operating Temp. | T-6 |
| Case Size Ref. | A-4 |
| Weight; Lbs./Kg. | 12.2/6 |
| Optional Temp.Sensor Model | TP |
| Remote Panel Model | N/A |
| Equalize Option | No |
| Output Indicator Ref. | M-2 |
| Compliance Ref. | EN, CE |
Case Size
| Inches | Centimeters | |||||
| Ref | H | W | D | H | W | D |
| A-1 | 10.5 | 5.0 | 2.8 | 26.7 | 12.7 | 7.1 |
| A-2 | 12.5 | 7.7 | 4.3 | 31.8 | 19.6 | 10.9 |
| A-3 | 13.85* | 9.5 | 4.8* | 35.2* | 24.1 | 12.2* |
| A-4 | 13.8A | 9.8 | 5A | 35A | 24.9 | 12.7A |
| A-5 | 14.8B | 9.6 | 5.6B | 37.6B | 24.4 | 14.2B |
| A-6 | 17.5C | 12 | 7.2C | 44.5C | 30.5 | 18.3C |
| * Add .75" (1.9 cm) to height and 1.35" (3.4 cm) to depth | ||||||
Temperature Rating References:
| T-1 | -10°C to +45°C; Derate linearly from 100% @ 0°C to 80% @ -10°C |
| T-2 | -10°C to +60°C; Derate linearly from 100% @ 40°C to 60% @ 60°C |
| T-3 | -10°C to +60°C; Derate linearly from 100% @ 50°C to 60% @ 60°C |
| T-4 | -10°C to +60°C; Derate linearly from 100% @ 40°C to 60% @ 60°C |
| T-5 | -40°C to +60°C; Derate linearly from 100% @ 50°C to 75% @ 60°C |
| T-6 | -20°C to +50°C; Full output |
| T-7 | -20°C to +70°C; Derate linearly from 100% @ 45°C to 50% @ 70°C |
| T-8 | -20°C to +70°C; Derate linearly from 100% @ 50°C to 50% @ 70°C |
Output Indicator References
| M-1 | Total output ammeter |
| M-2 | Charge/Float L.E.D. |
| M-3 | Total output ammeter and charger status L.E.D.'s/Alarms |
Compliance References*
See matrix for applicable models
CG USCG CFR 183.410 (Ignition protected)
EN EN 60335-1, EN 60335-2-29
CE Carries the CE Mark
* Numerous other Safety and EMC compliances may also apply. Contact factory if further compliance
information is required.
Nominal Output Voltages at Gel/Flooded Switch Settings
(Without Temperature Compensation option installed or at 22.2˚C (72˚F) with Temperature
Compensation option installed.)
| | 12 Volt Models | 24 Volt Models | 32 Volt Model | |||
| Charge | Float | Charge | Float | Charge | Float | |
| Setting | @ 50% load | @ .5 amp load | @ 50% load | @ .5 amp load | @ 50% load | @ .5 amp load |
| Gel-Cell | 14.0 VDC | 13.6 VDC | 28.0 VDC | 27.2 VDC | 37.3 VDC | 36.2 VDC |
| Flooded/AGM | 14.2 VDC | 13.4 VDC | 28.4 VDC | 26.8 VDC | 37.8 VDC | 35.7 VDC |
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Newmar PT40U 12v 40AMP Charger 115/230V Input Related Products
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Who is the NewMar?How to describe Newmar PT40U 12v 40AMP Charger 115/230V Input?
Who is the NewMar?
How to describe Newmar PT40U 12v 40AMP Charger 115/230V Input?
- Phase Three "Smart" battery charging technology is now available in a wide range of power levels, allowing you to select the right size, features and flexibility you require for virtually any application.
- The latest in safety and reliability with a patented design that will not overcharge your batteries.
- A complete line of chargers for your every need: from the smallest trickle charger to the largest battery service station.
- The Phase Three “Smart” battery charging technology is now available in a wide range of power levels, allowing you to select the right size, features and flexibility you require for virtually any application.
- With Phase Three “Smart” battery chargers, you can be assured that your batteries are being charged safely and efficiently.
- The Phase Three “Smart” battery charger system offers the widest range of power levels available on the market today.
The Newmar PT40U 12v 40AMP is the perfect solution for your off-grid power needs. With a 40 amp battery and a 12 volt power supply, this charger will provide you with the energy you need to keep your devices running all day, every day. The Newmar PT40U 12v 40AMP is designed to be easily transportable and can be used anywhere in the world.
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Newmar PT40U 12v 40AMP Charger 115/230V Input Technical Specifications
| Type: | |
|---|---|
| Vendor: |
NewMar |
| Weight: |
18.0 lb |
Newmar PT40U 12v 40AMP Charger 115/230V Input User Reviews
Newmar PT40U 12v 40AMP Charger 115/230V Input Shipping & Return
| Shipping Weight: |
18.0 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
| Truck Delivery: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.