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    • Mastervolt ChargeMaster 12 Amp Battery Charger  3 Bank 24V 44020120
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    Mastervolt ChargeMaster 12 Amp Battery Charger - 3 Bank, 24V [44020120]

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    Sale Price $570.99 Regular Price $1,021.99
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    ChargeMaster Battery Charger - 12 Amp - 3 Bank - 24V

    Power You Can Rely On

    Make the most of your batteries with the ChargeMaster, plugging in and charging anywhere in the world. Mastervolt’s ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. The ChargeMaster can charge multiple battery banks simultaneously thanks to its combined functionality. Moreover, all ChargeMasters can be easily connected to a MasterBus network with only one cable and one connection (not available on ChargeMaster 24/6). You also have the option of central, local or remote monitoring, configuration and control of your system. The ChargeMaster is available in various models to guarantee you the ideal battery charger for any situation and demand.

    Charging Your Batteries With Every Voltage

    The Mastervolt ChargeMaster supplies a maximum capacity wherever you are via auto-ranging. Auto-ranging ensures perfect fully automatic operation anywhere in the world, regardless of the available mains voltage (90-265 V AC, 50 or 60 Hz). The 3-step+ charging technology guarantees fast and complete charging, while the cos phi 1 regulation gets the most out of limited generator capacity. 

    Sturdy Connections 

    Metal-on-metal fitting gives a firm connection, and prevents corrosion or overheating of contact surfaces.

    Charging Multiple Battery Banks 

    The ChargeMaster series has three equal charge outputs. Those of the smaller ChargeMaster models are pre-installed with two meters of cable for a plug & play solution, while the heavier models have one full output (for example for your service battery) and two outputs of 10 A, ideal for your starter batteries.

    Features:

    • 3-Step+ charging technology for fast and complete charging.
    • Safe and complete charging due to standard safety features.
    • Memory function prevents overcharging in case of an unstable power supply.
    • Clear control panel.
    • Easy to install.
    • Built-in system functionality (MasterBus) in combination with other Mastervolt products (not available on ChargeMaster 24/6).

    General Specifications

    • Nominal output voltage: 24 V 
    • Total charge current:12 A 
    • Number of battery outlets: 3 
    • Charge current second output: 12 A 
    • Charge current third output:12 A 
    • Battery capacity range: 24-120 Ah 
    • Nominal input voltage: 120/230 V (90-265 V), 50/60 Hz
    • AC connection: 2M AC cable
    • Power supply mode: yes
    • Display/read-out: LED display
    • Fastening: 4x screw
    • Dimensions, H x W x D: 234 x 132 x 60 mm / 9.2 x 5.2 x 2.4 inch
    • Weight: 1.8 kg / 4.0 lb
    • Approvals:CE, ABYC A-31, SAE J1171/ISO8846 ignition protected

    Technical Specifications

    • Charge characteristic: IUoUo, automatic / 3-step+ for gel/AGM/wet/Lithium Ion
    • Charge voltage Bulk: 28.8 V
    • Charge voltage Absorption: 28.5 V
    • Absorption time: 4 hours
    • Charge voltage Float (wet batteries): 26.5 V
    • Charge voltage Float (gel/AGM batteries): 27.6 V
    • Temperature compensation: -60 mV/ °C -33 mV/ °F
    • Voltage compensation: automatic
    • Power consumption (DC side): < 2 mA
    • Full load consumption (230 V AC): 435 W
    • Current Control function: no
    • Power factor control: ≥ 0.98
    • Temperature range (ambient temp.): -25 °C to 60 °C, derating > 25 °C -13 °F to 140 °F
    • Sound level: < 52 dBA at 1M
    • Protection degree: IP23
    • Protections: over temperature, over load, short circuit, high/low battery voltage
    • Cooling: vario fan
    • MasterBus compatible: yes

    WarningWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

    Specifications:

    • Charger Output Voltage: 24v
    • Charger Output - Amps: 12a
    • Charging Banks: 3
    • Portable: No
    • Charger Input - Voltage: 120/230v
    • Box Dimensions: 5"H x 7"W x 11"L WT: 4.65 lbs
    • UPC: 816882020100

    Owner's Manual (pdf)
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    Documents
    User Manual Download
    Specification Sheet Download
    Safety Guide Download
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

    Training & Tutorials

    Browse our library of how-to videos and maintenance tips to get the most out of your cordless drill.

    FAQs

    Find quick answers to common questions

    Product & Usage

    1. Is your gear authentic and warranty-backed?

    Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.

    2. Are these products beginner-friendly?

    Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.

    3. Are these products built for marine conditions?

    Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.

    Maintenance & Accessories

    1. What maintenance does marine electronics require?

    Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.

    2. Can I buy replacement parts and accessories separately?

    Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.

    3. Do you provide product manuals or installation guides?

    Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.

    Warranty & Guarantee

    1. Does my purchase include a warranty?

    Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).

    2. How do I register for warranty coverage?

    Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.

    3. What does the manufacturer warranty cover?

    Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.

    4. Can I extend the warranty?

    Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.

    Purchasing & Support

    1. How fast does my order ship?

    Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.

    2. Do you offer bulk or fleet pricing?

    Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.

    3. How can I contact support?

    Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.

    Can’t find your answer?

    Feel free to reach out to us!

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