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● The Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre-set voltage (indicating that the battery is being charged), and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged). Cyrix Battery Combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.
● New: intelligent battery monitoring to prevent unwanted switching
Some battery combiners will disconnect a battery in case of a short but high amperage load. A battery combiner
also may fail to connect a large but discharged battery bank because the DC voltage immediately drops below
the disengage value once the batteries are connected.
The software of the Cyrix-i does more than simply connect and disconnect based on battery voltage and with a
fixed time delay. The Cyrix-i looks at the general trend (voltage increasing or decreasing) and reverses a previous
action only if the trend has reversed during a certain period of time. The time delay depends on the voltage
deviation from the trend.
In addition, four switch timing profiles can be chosen (see back page).
● 12/24 V and 24/48 V auto ranging
The Cyrix-i automatically detects system voltage.
● No voltage loss
Cyrix battery combiners are an excellent replacement for diode isolators. The main feature is that there is virtually
no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.
● Prioritizing the starter battery
In a typical setup the alternator is directly connected to the starter battery. The accessory battery, and possibly
also a bow thruster and other batteries are each connected to the starter battery with Cyrix battery combiners.
When a Cyrix senses that the starter battery has reached the connect voltage it will engage, to allow for parallel
charging of the other batteries.
● Bidirectional voltage sensing and power supply from both batteries
The Cyrix senses the voltage of both connected batteries. It will therefore also engage if for example the
accessory battery is being charged by a battery charger.
The Cyrix-i has a dual power supply. It will therefore also close if the voltage on one battery is too low to operate
the Cyrix.
In order to prevent unexpected operation during installation or when one battery has been disconnected, the
Cyrix-i will not close if the voltage on one of the two battery connections is lower than 2 V (12 V battery), or 4 V
(24 V battery) or 8 V (48 V battery).
● Parallel connection in case of emergency
The Cyrix can also be engaged with a push button (Cyrix remains engaged during 30 s) or a switch to connect
batteries in parallel manually.
This is especially useful in case of emergency when the starter battery is discharged or damaged..
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