SKU:
EX 44020200
1-2 weeks delivery time
Our managers will contact you and clarify the terms of the order
The Mastervolt ChargeMaster 24/20-3 (44020200) is a robust 24 V smart battery charger featuring three equal current outputs, full MasterBus system integration, and a compact IP23-protected design. With 20 A total output current, it efficiently supports battery banks from 40 to 200 Ah. Auto-ranging input (90–265 V AC) and the 3-Step+ charging algorithm provide global compatibility and battery longevity. Suitable for all battery chemistries including Lithium Ion, and ignition protected for marine and vehicle use.
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Mastervolt 44020200 – ChargeMaster 24 V/20 A Battery Charger (3 Outputs, MasterBus, Auto-Ranging, Ignition Protected)
The ChargeMaster 24/20-3 is a compact, intelligent battery charger designed for semi-professional and recreational systems. Supporting three fully-rated 20 A charge outputs, the unit safely and rapidly charges all types of batteries including Lithium Ion, AGM, Gel, and flooded cells using Mastervolt’s 3-Step+ automatic charging profile. Auto-ranging AC input ensures seamless operation worldwide, while MasterBus communication allows centralized configuration and diagnostics.
Key Features
- 20 A charge current at 24 V DC
- Three full-capacity outputs (ideal for house and starter batteries)
- Global AC input: 90–265 V AC, 50/60 Hz
- 3-Step+ IUoUo charging for all battery types including Li-ion
- MasterBus compatible for system integration and monitoring
- Galvanically isolated and ignition protected (SAE J1171/ISO 8846)
- DC power supply mode – powers system even without batteries
- Conformal-coated internals, IP23 housing, vario-controlled fan cooling
General Specifications
Specification Value Product Code 44020200 Output Voltage 24 V DC Total Charge Current 20 A Battery Bank Capacity 40–200 Ah Number of Battery Outputs 3 (all 20 A capable) AC Input Voltage 90–265 V AC, 50/60 Hz Full Load Power Consumption 660 W Display LED status display Mounting Bracket or 4x screw mount (included) Dimensions (HxWxD) 291 × 210 × 131 mm Weight 4 kg (8.8 lb) Protection Class IP23 Certifications CE, ABYC A-31, RMRS, RRR, SAE J1171/ISO 8846
Charging Profile & Electrical Details
Parameter Value Charge Algorithm IUoUo 3-Step+ (auto detection) Bulk Voltage 28.8 V Absorption Voltage 28.5 V Float Voltage (Wet) 26.5 V Float Voltage (Gel/AGM) 27.6 V Absorption Time 4 hours (auto-controlled) Temperature Compensation Yes DC Voltage Compensation Automatic Standby Current Draw < 2.5 mA Power Factor ≥ 0.98 Documents
ChargeMaster 24_20-3 - User Manual Size: 1,2 MbAsk a Question
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