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The Redodo Dual Battery Isolator is a voltage sensitive relay that lets one alternator charge a starting battery and a house battery at the same time. It cuts in at 13.4V and cuts out at 12.8V by default, and the thresholds are adjustable so it works on 12V or 24V systems with lead-acid or LiFePO4 batteries. A built-in LCD shows live voltage and current, and a button-triggered reverse charge switch lets the house battery top up a flat starting battery for 60 seconds. It suits RV, marine, off-road and dual-battery vehicle owners who want automatic charging without a manual switch. Against fixed-threshold VSRs, the adjustable cut-in and cut-out is the main advantage, since fixed units can fail to engage or chatter with lithium banks.
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The Redodo 12V/24V 150A Adjustable Dual Battery Isolator is a voltage sensitive relay (VSR) that charges two battery systems from a single alternator. By default it connects at 13.4 volts and disconnects at 12.8 volts, which keeps the starting battery charged and ready to start the vehicle.
The connect and disconnect voltages are adjustable, so it works with 12V or 24V systems and with lithium (LiFePO4) and lead-acid batteries. For example, the working voltage can be set to match a LiFePO4 battery's 14.4V±0.2V. A built-in LCD shows real-time voltage and current.
An emergency reverse charge button lets the house battery charge the starting battery for 60 seconds if the house battery's voltage is higher. This allows an emergency engine start when the starting battery is drained. Protection includes over-voltage, over-temperature and reverse-current safeguards. It is used in RVs, marine systems, cars, trucks, ATVs and off-road vehicles, and has a compact, tool-free design with standardized wiring.
