SKU:
EX 83304002
€ 324,82
1-2 weeks delivery time
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+
The Mastervolt Charge Mate Pro 40 is a current-limited electronic charge relay designed to safely distribute charge from a single source to two battery banks. With a 40 A limit on the secondary battery and reverse current blocking, it ensures the starter battery is prioritized and protected from discharge. The IP65-rated aluminum housing and automatic 12/24 V detection make it ideal for demanding marine and mobile environments.
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Mastervolt 83304002 – Charge Mate Pro 40 (12/24 V, 40 A, Smart Electronic Battery Combiner, IP65)
The Mastervolt Charge Mate Pro 40 (83304002) is a high-efficiency, current-limited battery combiner that enables controlled dual-battery charging from a single source such as a charger or alternator. It connects a starter and service battery during charging and isolates them during discharge. This prioritizes the starter battery while allowing safe, limited charging of auxiliary systems.
Unlike mechanical relays, the Charge Mate Pro 40 electronically limits charge current to 40 A for the secondary battery and blocks reverse current at all times—even when the secondary voltage exceeds the primary. This prevents power dips and enhances system stability, especially in bow thruster or auxiliary loads. The rugged IP65 housing and integrated heat sinks ensure reliable operation in harsh environments.
Key Features
- Electronically controlled charge relay with low voltage drop (max 0.2 V)
- Limits secondary battery charge to 40 A
- Prevents discharge or backfeed with complete reverse current blocking
- Prioritizes starter battery during all charging events
- LED indicators for live system monitoring
- Supports remote operation (on/off/auto/start assist)
- Corrosion-resistant aluminum casing, IP65 rated
- Automatic 12/24 V system detection
Technical Specifications
Parameter Value Model 83304002 Battery Voltage Automatic 12 / 24 V detection Input Voltage Range 9–32 V Output Current Limited to 40 A Switch-On Voltage 13.5 V (12 V) / 27 V (24 V) Switch-Off Voltage 12.75 V (12 V) / 25.5 V (24 V) Switch-On Delay 5 seconds Switch-Off Delay 2.5 seconds Relay Type Electronic (MOSFET) Voltage Drop Max 0.2 V Power Consumption < 1 mA (open switch) Remote Switch Functions ON, OFF, AUTO, Start Assist Monitoring LED status indicators Battery Compatibility AGM, GEL, Lithium (service only) Ambient Temperature -40 °C to +60 °C Protection Degree IP65 Compliance CE Dimensions (HxWxD) 157 x 140 x 80 mm / 6.2 x 5.5 x 3.1 inch Weight 0.88 kg / 1.9 lb
Applications
- Marine battery banks with starter and service separation
- Bow thruster batteries with current-limited charging
- RV and mobile power systems needing unidirectional current flow
- Any system requiring prioritized dual-battery charging and reverse current protection
Documents
Charge Mate Pro 40 - User Manual Size: 879,2 Kb -
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