Dometic PerfectCharge DCDC 12 DC-DC Battery Charger 170 W Silver (9600000039)

Service batteries in vehicles often suffer from undercharging due to voltage drop in long cable runs or the smart alternator's variable output. The Dometic PerfectCharge DCDC 12 solves this by boosting the input voltage to deliver a stable, multi-stage charge to your auxiliary battery, ensuring it reaches full capacity and lasts longer.

Who is it for

This charger is ideal for RV, boat, and truck owners who need to charge a 12 V service battery (lead-acid or LiFePO4) from the vehicle's starter battery or alternator while driving. It is also suitable for indoor use as a power supply or voltage converter.

Main features

• DC-DC converter with boost function compensates for voltage drops in long cables
• Multi-stage charging characteristic (IUoU) for lead-acid and lithium batteries
• High efficiency up to 90%
• Protection against overload, short circuit, reverse polarity, and over-temperature
• Optional external temperature sensor for optimal charging in extreme conditions
• Compact and robust aluminum/plastic housing for surface mounting
• Screw terminals for secure input and output connections

Specifications

• Input voltage: 8–16 V DC
• Output voltage: 12 V DC nominal
• Max charging current: 17 A
• Max output power: 204 W
• Battery compatibility: Lead-acid (wet, gel, AGM), LiFePO4
• Efficiency: up to 90%
• Operating temperature: -20°C to +50°C
• Standby current: < 1 mA
• IP rating: IP20
• Dimensions (W x H x D): 120 x 50 x 160 mm (from supplier data)
• Weight: 0.8 kg (from supplier data)

Tips

Mount the charger close to the service battery to minimize voltage drop. Use appropriately sized cables (at least 2.5 mm² for short runs) and ensure proper ventilation. For lithium batteries, verify that the charging profile matches the battery manufacturer's recommendations.