Mastervolt Chargemaster 12/25-3
In stock
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4 units available
Regular price
€364,80 EUR
VAT included
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MPN
: 44010250
Mastervolt ChargeMaster 12/25-3 – 12V 3-Output Battery Charger
The Mastervolt ChargeMaster 12/25-3 offers efficient and safe charging for 12 V systems, ideal for marine applications, campers and self-sufficient power installations. Thanks to 3-step+ charging technology and intelligent energy management, it ensures high performance, longer battery life and full compatibility with conventional, AGM, Gel and Li-ion batteries.
The charger is designed to operate anywhere in the world thanks to its autoranging function (90-265 V AC, 50/60 Hz), ensuring stable charging even in the presence of variable voltage. The DC output stays active even without a battery connected, allowing onboard loads such as lights or refrigerators to be powered.
The backlit display allows immediate monitoring of the essential parameters: current, voltage, charge state and remaining capacity. Three dedicated buttons allow direct system management. Compatible with MasterBus for integration with Mastervolt systems and local or remote monitoring.
Designed for recreational and semi-professional use, it offers three simultaneous charging outputs to manage multiple battery banks, with corrosion-resistant metal-to-metal connectors and advanced protection systems against overtemperature, overload and short-circuit.
General Specifications
| Output voltage | 12 V |
| Total current | 25 A at 13.25 V |
| Battery outputs | 3 |
| Output 2/3 current | 25 A |
| Supported battery capacity | 50-250 Ah |
| Input voltage | 120/230 V (90-265 V), 50/60 Hz |
| AC connection | 2 m cable |
| Power supply function | Yes, even without a battery |
| Galvanic isolation | Yes |
| Display | LED |
| Dimensions | 234 × 132 × 60 mm |
| Weight | 1.8 kg |
| Certifications | CE, ABYC A-31, SAE J1171/ISO8846, RRR, RMRS |
Charging Specifications
| Charge curve | IUoUo automatic 3-step+ (Gel/AGM/flooded/Li-ion) |
| Bulk | 14.4 V |
| Absorption | 14.25 V (4 hours) |
| Float | 13.25 V (flooded) / 13.8 V (Gel/AGM) |
| Temperature compensation | Yes |
| DC self-consumption | < 2 mA |
| Max consumption | 450 W |
| Power factor | ≥ 0.98 |
| Operating temperature | -25 °C to 60 °C |
| Cooling | Variable-speed fan |
| Protection | Overtemperature, overload, short-circuit, high/low voltage |
| IP rating | IP23 |
| MasterBus compatibility | Yes |
