Skip to product information
1 of 1

Mastervolt

Mastervolt ChargeMaster 44020120 12 Amp 24V 3-Bank Battery Charger

Mastervolt ChargeMaster 44020120 12 Amp 24V 3-Bank Battery Charger

SKU:66378

Regular price $631.97 USD
Regular price Sale price $631.97 USD
Sale Sold out

Low stock: 3 left

  • 30-Day Returns
  • Secure Checkout
  • Free Shipping — Contiguous U.S.

Shipping & Delivery

Free standard shipping is available on all orders shipping within the Contiguous United States, with no minimum order. Alaska and Hawaii are excluded from free shipping. Orders are typically processed within 1–2 business days. See our Shipping Policy for complete terms.

Returns & Refunds

Eligible items may be returned within 30 days of delivery. Items must be new, unused, uninstalled, and in original packaging. An RMA is required.

Installment options at checkout are provided by Shop Pay and its partners and are subject to eligibility. Options depend on your purchase amount and may require a credit check by the financing partner. Terms, rates, and eligibility are determined by the financing partner. For details, see the Shop Pay Installments terms during checkout.

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. Mastervolts 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.nbsp;

Sturdy Connectionsnbsp;

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

Charging Multiple Battery Banksnbsp;

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 amp; 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 Vnbsp;
  • Total charge current:12 Anbsp;
  • Number of battery outlets: 3nbsp;
  • Charge current second output: 12 Anbsp;
  • Charge current third output:12 Anbsp;
  • Battery capacity range: 24-120 Ahnbsp;
  • 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): lt; 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 gt; 25 C -13 F to 140 F
  • Sound level: lt; 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.

The Mastervolt ChargeMaster 44020120 is a 12-amp, 24-volt battery charger designed for marine and mobile power systems that need dependable charging for multiple battery banks. Its three-bank configuration, automatic voltage operation, and 3-Step+ charging technology help support fast, complete charging for compatible gel, AGM, wet, and Lithium Ion batteries.


Auto-ranging operation accepts 90-265 volts AC at 50 or 60 Hz, making the ChargeMaster suitable for use with varying mains power around the world. The charger can charge three battery banks simultaneously, while its memory function helps prevent overcharging during an unstable power supply. A clear LED display provides straightforward status information, and the integrated power supply mode supports system operation when needed.


Key Features

  • 3-Step+ charging technology supports automatic charging for gel, AGM, wet, and Lithium Ion batteries.
  • Three battery outlets provide simultaneous charging for multiple battery banks.
  • Auto-ranging input accepts 90-265 V AC at 50 or 60 Hz.
  • MasterBus compatibility enables system monitoring, configuration, and control when used with compatible Mastervolt products.
  • Built-in protection helps address over-temperature, overload, short circuit, and high or low battery voltage conditions.
  • Ignition-protected design with CE, ABYC A-31, and SAE J1171/ISO8846 approvals.

Product Details

  • Brand: Mastervolt
  • Model/Part Number: 44020120
  • Nominal output voltage: 24 V
  • Total charge current: 12 A
  • Battery capacity range: 24-120 Ah
  • Input voltage: 120/230 V AC, 90-265 V AC, 50/60 Hz
  • Charge outputs: 3
  • Charge characteristic: IUoUo, automatic 3-Step+
  • Display: LED
  • Cooling: Vario fan
  • Protection degree: IP23
  • Ambient temperature range: -13°F to 140°F, with derating above 77°F
  • Weight: 4.0 lb

Choose the Mastervolt ChargeMaster 44020120 for organized, automatic 24-volt battery charging across three banks in compatible marine and mobile power applications.


California Proposition 65 Warning
WARNING: 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.


SEO META DESCRIPTION:
Mastervolt ChargeMaster 12-amp 24V battery charger with three banks, automatic 3-Step+ charging, auto-ranging input, and MasterBus compatibility.

Features:

  • 3-Step+ charging technology supports automatic charging for gel, AGM, wet, and Lithium Ion batteries.
  • Three battery outlets provide simultaneous charging for multiple battery banks.
  • Auto-ranging input accepts 90-265 V AC at 50 or 60 Hz.
  • MasterBus compatibility enables system monitoring, configuration, and control with compatible Mastervolt products.
  • Built-in protection helps address over-temperature, overload, short circuit, and high or low battery voltage conditions.
  • Ignition-protected design with CE, ABYC A-31, and SAE J1171/ISO8846 approvals.

View full details