Charge Mate Pro 40 – Electronics Charge RelayCurrent limited electronic charge relay with high efficiency and reverse current protectionA 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 Charge Mate Pro connects both batteries during charging and keeps them isolated when discharging. This significantly reduces the risk of a flat starter battery for example.The Charge Mate Pro offers an additional advantage over mechanical charge relays, by limiting the charge current to the second battery. The primary battery, like a starter battery, is therefore 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.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.The Charge Mate Pro series consist of a 40 Amp and a 90 Amp version, both suitable for charger or alternator applications.Charge Mate Pro: for controlled charging from a single source.ApplicationsLeisure and professional marine and mobile applications. An effective solution for high power demand on board and/or the need of prioritised or current limited charging.FeaturesElectronic charge coupling with very low voltage dropMakes effective dual charging possibleSuitable for all battery types, including Lithium IonCharge current secondary battery limited to 40 AHigh system reliability by prioritised charging of the main batteryUnidirectional which blocks return current under all circumstancesPrevents power dips of the onboard electrical networkSuitable for all kinds of chargers and alternatorsMonitoring with LED status indicationIP65 electronics in a corrosion resistant casing with aluminum heat sinksFast and easy installationGeneral specificationsRemote switch functions: on, off, auto, start assistMonitoring: LED (warnings and status indication)Output current: limited to 40 ANumber of battery outlets: 2Input voltage range: 9-32 VParallel configuration: yesBattery voltage: automatic 12/24 V detectionDimensions, hxwxd: 157 x 140 x 80 mm / 6.2″ x 5.5″ x 3.1″Weight: 0.88 kg / 1.9 lbApprovals: CETechnical specificationsConnection possibilities: 3 x fast-on connectors (switch, ground and status) o switch: for an optional single pole ON-OFF-ON switch for remote operation o status: for an optional LED indicatorPower consumption: switch open: < 1 mA at 12/24 V DCBattery types: all types (Lithium Ion protection via Multi purpose contact, 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)Switch off delay: 2.5 sec.Relay: electronically (mosfets with low voltage drop of max 0.2 V)Temperature range (ambient temp.): -40 C to 60 C -40 to 140 FProtection degree: IP65WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Owner's Manual (pdf)