Mastervolt 83309002 Charge Mate Pro 90 - Advanced Charging CapabilityThe Mastervolt 83309002 Charge Mate Pro 90 is an advanced charging solution designed to effectively distribute charger or alternator current between two battery banks. It is ideal for leisure and professional marine and mobile applications that require prioritized or current limited charging.The Charge Mate Pro 90 features a current limited electronic charge relay with high efficiency and reverse current protection. It connects both batteries during charging and keeps them isolated when discharging, significantly reducing the risk of a flat starter battery. The primary battery, such as a starter battery, is charged with priority, and the return current is automatically blocked even when the secondary battery has a higher voltage.With the Charge Mate Pro 90, you can connect a secondary battery, like a bow thruster battery, to a service battery. This ensures that the service battery is always charged with priority, while blocking the return current from the bow thruster battery to guarantee its charge. The current limiting feature prevents power dips in the onboard electrical network.The Charge Mate Pro 90 offers a higher charge current, making it suitable for charging Lithium-Ion batteries. It is also compatible with large automotive alternators up to 180 A and can be used in parallel operation with a 225 Amp alternator to fulfill even higher continuous power demands.Product Features: Charges two battery banks from a single source Electronic charge coupling with very low voltage drop Makes effective dual charging possible Suitable for all battery types, including Lithium-Ion Charge current secondary battery limited to 90 A High system reliability by prioritizing charging of the main battery Unidirectional which blocks return current under all circumstances Prevents power dips in the onboard electrical network Suitable for all kinds of chargers and alternators Monitoring with LED status indication IP65 electronics in a corrosion-resistant casing with aluminum heat sinks Fast and easy installation General Specifications: Monitoring: LED (warnings and status indication) Output current: limited to 90 A; > 25 °C derating power Number of battery outlets: 2 Input voltage range: 9-32 V Parallel configuration: Yes Battery voltage: Automatic 12/24 V detection Remote switch functions: On, off, auto, start to assist Dimensions, hxwxd: 157 x 140 x 80 mm/6.2 x 5.5 x 3.1 inch Weight: 0.88 kg/1.9 lb Compliance: CE Technical Specifications: Connection possibilities: 3 x faston connectors (switch, ground, and status) switch: for an optional single-pole ON-OFF-ON switch for remote operation status: for an optional LED indicator Power consumption: Switch open: < 1 mA at 12/24 V DC Battery types: All types (Lithium-Ion protection via Multipurpose Contact Output, product code 77030500) Switch on voltage: 13.5 V (12 V) / 27 V (24 V) Switch on delay: 5 sec Switch off voltage: 12.75 V (12 V) / 25.5 V (24 V) Learn More: Battery Charger Automotive Alternator Lithium-Ion Battery