Description
Multi-Stage DC–DC Battery Charging for Dual-Battery Systems
This industrial DC-to-DC battery charger provides intelligent multi-stage charging (bulk, absorption, and float) designed for auxiliary battery banks in campervans, overlanding 4WDs, marine vessels, and commercial service vehicles. By converting power directly from your primary vehicle alternator or starter battery, it ensures deep-cycle auxiliary batteries reach full charge while protecting your starter battery from discharge.
Fully compatible with Euro 6 smart alternators with variable output, standard alternators, and multi-chemistry setups including Lithium Iron Phosphate (LiFePO4), AGM, GEL, and flooded lead-acid batteries. Integrated electronic protections guard against reverse polarity, over-temperature, over-voltage, and short-circuit faults with automatic recovery.
Select your required battery system voltage and charging current from the model selector above to see verified electrical ratings, operating temperature limits, and engineering datasheets below.




