Description
Mastervolt ChargeMaster Plus 24/20-3 Charger | Boat Supply Store
For offshore cruising vessels and yachts operating 24V systems, this advanced charger ensures batteries receive optimal charge regardless of location. It delivers a robust 20A total charge current at 28.8V across three independent outlets, supporting battery banks from 40-200 Ah. Its auto-ranging 90-265V AC input and 3-Step+ charging algorithm are critical for maintaining battery health and longevity, especially when powering systems directly or using unreliable shore power or generators.
Key Features
- Rapid & Complete Charging with advanced 3-Step+ technology.
- Universal Compatibility for all battery types, including Lithium-Ion.
- Global Operation with auto-ranging 90-265V AC input.
- Three Independent Outputs capable of 20A each.
- Direct System Power functionality, even without batteries.
- Seamless System Integration via MasterBus connectivity.
- Reliable Operation with memory function for unstable mains.
- Durable Construction featuring robust metal-to-metal connectors.
Specifications
| Product Specifications | |
|---|---|
| Nominal Output Voltage | 24V |
| Total Charge Current | 20A at 28.8V |
| Battery Outlets | 3 (each 20A) |
| Recommended Battery Bank Size | 40-200 Ah |
| AC Input Voltage | 120/230V (90-265V) Auto-ranging |
| AC Input Frequency | 50/60 Hz |
| AC Connection | Connector Strip |
| Power Supply Mode | Yes |
| Galvanic Isolation | Yes |
| Display | LED Display |
Who This Is For
Boaters with 24V battery systems requiring dependable and rapid charging, especially those engaged in international travel or reliant on generators. It is ideal for vessels with battery banks up to 200 Ah seeking to charge multiple banks or power onboard systems directly.
How It Compares
| Feature | Mastervolt ChargeMaster Plus 24/20-3 Charger | Competitor |
|---|---|---|
| Nominal Output Voltage | 24 V | 24 V |
| Total Charge Current | 20 A | 20 A |
| Number of Battery Outlets | 3 | 1 |
| Battery Bank Size | 40-200 Ah | 100-200 Ah |
| Input Voltage Range | 90-265 V AC | 90-265 VAC |
| Charging Technology | 3-Step+ | 3-Stage |
| MasterBus Compatibility | Yes | No |
| Power Supply Mode | Yes | Yes |
Common Concerns Answered
Is the Mastervolt ChargeMaster Plus 24/20-3 a premium-priced unit?
While its price point is higher than some basic alternatives, the ChargeMaster Plus 24/20-3 offers advanced global charging capabilities, 3-Step+ technology for superior battery health, MasterBus integration, and the flexibility to power systems directly, providing significant value for demanding marine applications.
Is MasterBus compatibility standard on all Mastervolt chargers?
MasterBus connectivity is a premium feature integrated into specific models like the ChargeMaster Plus 24/20-3, designed for comprehensive system integration in larger or more complex electrical architectures. Smaller models may not include this feature.
Is the advanced functionality difficult to set up?
The ChargeMaster Plus 24/20-3's advanced features are designed for robust performance; however, a thorough review of the included manual is recommended to fully understand and leverage all capabilities, ensuring optimal installation and operation.
Frequently Asked Questions
What is the Mastervolt ChargeMaster Plus 24/20-3 battery charger's charging capacity?
The charger provides a total charge current of 20A, distributed across its three battery outlets. It is suitable for battery banks ranging from 40 Ah to 200 Ah.
Can the ChargeMaster Plus 24/20-3 charge Lithium-Ion batteries?
Yes, the Mastervolt ChargeMaster Plus 24/20-3 is designed to charge all battery types, explicitly including Lithium-Ion batteries, ensuring optimal performance and longevity.
What is the 3-Step+ charging technology?
3-Step+ charging technology is an advanced multi-stage charging process that optimizes battery health. It involves a bulk charge phase for rapid energy replenishment, an absorption phase to fully saturate the battery, and a float phase to maintain the charge, minimizing gassing and extending battery life.
Can this charger supply power to a system without a battery connected?
Yes, the ChargeMaster Plus 24/20-3 features a Power Supply Mode that allows it to directly power a DC system even when no battery is connected, making it versatile for various operational needs.
How many battery banks can the ChargeMaster Plus 24/20-3 charge simultaneously?
The Mastervolt ChargeMaster Plus 24/20-3 is equipped with three equal charge outputs, allowing it to charge up to three independent battery banks simultaneously.
