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CYR010120000 - Battery Combiner – 12/24V – 120A Electrical Part Land Rover Range Rover

CYR010120000 - Battery Combiner – 12/24V – 120A

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- €48,90
€48,90
€48,90 - €48,90
€48,90
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Battery Combiner is a microprocessor-controlled, voltage-sensitive relay used in dual-battery and split-charge systems to link a starter battery and an auxiliary battery automatically.

It monitors charging voltage and connects the two batteries in parallel once one reaches the preset charge threshold, then isolates them again when the voltage falls to the discharge level, so the auxiliary battery charges from the alternator without drawing down the starter battery. Operation is bi-directional, allowing the starter battery to be replenished when the auxiliary side is charged from a mains charger. Rated for 12V and 24V systems at 120A.

As a relay-based combiner it introduces virtually no voltage drop, unlike a diode isolator. An emergency parallel-connect function allows the two batteries to be linked manually to assist starting from a discharged battery.
Alternative Codes
CYR010120000

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Frequently asked questions

What does a battery combiner do?
A battery combiner is a voltage-sensitive relay that automatically links a starter battery and an auxiliary battery in a split-charge system. It connects them once charging voltage reaches the preset threshold, then isolates them when voltage drops, so the second battery charges from the alternator without draining the starter battery. Rated for 12V and 24V systems at 120A.
How many battery combiners do I need for a dual-battery setup?
Typically one battery combiner is needed per dual-battery installation, linking the single starter battery to one auxiliary battery. It handles up to 120A, so it suits a standard second-battery or split-charge system. For banks with several auxiliary batteries wired in parallel, you'll usually still need just one combiner on the main link.
Does the battery combiner cause voltage drop like a diode isolator?
No, the battery combiner uses a relay rather than diodes, so it introduces virtually no voltage drop, unlike a diode split-charge isolator. The auxiliary battery sees close to full charging voltage. Operation is bi-directional, so the starter battery can also be topped up when the auxiliary side is charged from a mains charger.