match two battery types
With the increasing use of Lithium batteries (LiFePo4) for on-board service systems, compatibility between different battery types has become a major issue. Indeed, the cohabitation between starter batteries, often lead-acid, and lithium batteries for services requires specific management of energy flows, particularly during alternator operation. CRISTEC's RCB+ relay responds to this challenge by providing an efficient, secure connection between these two types of battery. This device is capable of managing the current coming from the alternator by limiting it to the service battery, while prioritizing recharging of the starter battery.
Alternator protection
One of the RCB+'s key features is its ability to limit the current flowing between the alternator and the service battery. Thanks to a setting wheel, the user can adjust this limit between 50 and 120A, guaranteeing flexibility according to the system's needs. This fine-tuned management preserves the alternator while optimizing battery recharging. It is recommended to retain around 30% of the alternator's capacity for the starter battery. For example, for a 110 Ah alternator, the limit could be set at 70A for service. This type of setting ensures that the alternator is not overloaded, thus increasing its service life.
Simple, robust installation
The RCB+ is designed for easy, robust on-board installation. It operates with 12V or 24V alternators and can handle alternators up to 200A, making it compatible with a wide range of on-board systems. The relay also features overvoltage and reverse current protection, preventing potential damage to electrical components. What's more, its compact casing and passive (fanless) cooling enable it to operate in a wide range of conditions, with temperatures from -25°C to 65°C.
The RCB+ from CRISTEC is a key tool for all yachtsmen and yachting professionals using different battery technologies on board. Available from the end of September 2024 at a price of 198 Âeuros ex VAT.
