Description
Mastervolt Charge Mate Pro 90 split charge relay 83309002 is a current limited electronic charge relay with high efficiency and reverse current protection. The Pro90 split charger is suitable for leisure and professional marine and mobile applications. It is an effective solution for high power demand on board and for the need of prioritised charging or current-limited charging.
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A secondary battery on board requires a dedicated charging solution. The Charge Mate Pro makes it possible to distribute the charger or alternator current effectively between two battery banks such as a starter and a service battery. The Mastervolt charging relay connects both batteries during charging and keeps them isolated when discharging, significantly reducing the risk of a flat starter battery.
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The Charge Mate Pro offers an additional advantage over mechanical charge relays, by limiting the charge current to the second battery. Like a starter battery, the primary battery will be charged with priority. The return current is automatically blocked even when the secondary battery has a higher voltage. An emergency start function is possible by connecting an optional bypass switch to the Charge Master Pro.
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A marine application example is the connection of a bow thruster battery to a service battery. The Charge Mate Pro ensures that the service battery is always charged with priority. The blocking of the return current from the bow thruster battery guarantees that the bow battery remains charged while the current limiting also prevents power dips of the onboard electrical network.
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The Charge Mate Pro 90 ensures a higher charge current for example when charging Lithium Ion batteries. It is also ideal for large automotive alternators up to 180A and can be used in parallel operation with a 225 Amp alternator to fulfil even higher continuous power demands of your onboard equipment.
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General specifications
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Monitoring: LED (warnings and status indication)
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Output current: limited to 90 A; > 25 °C derating power
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Number of battery outlets: 2
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Input voltage range: 9-32 V
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Parallel configuration: yes
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Battery voltage: automatic 12/24 V detection
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Remote switch functions: on, off, auto, start assist
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Dimensions, hxwxd: 157 x 140 x 80 mm (6.2 x 5.5 x 3.1 inch)
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Weight: 0.88 kg (1.9 lb)
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Compliance: CE
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Technical specifications
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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
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Power consumption: switch open: < 1 mA at 12/24 V DC
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Battery types: all types (Lithium Ion protection via Multipurpose Contact Output, product code 77030500)
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Switch on voltage: 13.5 V (12 V) / 27 V (24 V)
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Switch on delay : 5 sec
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Switch off voltage: 12.75 V (12 V) / 25.5 V (24 V)
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Switch off delay: 2.5 sec
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Relay: electronically (MOSFETs with low voltage drop of max 0.2 V)
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Temperature range (ambient temp.): -40 °C to 60 °C (-40 °F to 140 °F)
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Protection degree: IP65
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Key Features
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Charges two battery banks from a single source
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Electronic charge coupling with very low voltage drop
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Effective dual charging
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For all batteries, incl. Lithium Ion
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Charge current secondary battery limited to 90A
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High system reliability with main battery charge priority
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Unidirectional – blocks return current
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Prevents onboard electrical power dips
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For all kinds of chargers & alternators
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Monitoring with LED status indication
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IP65 electronics in corrosion-resistant case with aluminium heat sinks
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Fast & easy installation
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