60A 12V→12V Advanced DC-DC Battery-to-Battery Charger The DC1212-60 is a high-power, fully automatic 60A DC-DC charger designed for leisure vehicles, boats, and commercial or specialist applications that require fast, safe charging of large 12V battery banks. Using advanced buck-boost power conversion and high-frequency switching technology, this unit delivers consistent output even with fluctuating alternator or supply voltage — ensuring your auxiliary batteries are always charged to optimum levels. Suitable for Lead Acid, AGM, Gel, LiFePO4, and Lithium-ion (NCM) batteries, the charger features a smart three-stage charging program for efficient and reliable battery maintenance. With comprehensive protections, temperature-aware charging, and optional data monitoring, it’s ideal for motorhomes, campervans, work vehicles, and marine systems with multiple battery sources. Key Features High-output charging: provides up to 60A of regulated charging power for rapid replenishment of large 12V battery banks. Intelligent three-stage charging: fully automatic bulk, absorption, and float modes tailored to each battery chemistry. Selectable battery profiles: DIP-switch selection for Lead Acid, AGM, Gel, LiFePO4, or Lithium-ion (NCM) batteries. Safe unattended operation: protection against overload, overheating, over- and under-voltage, short circuit, and reverse discharge. Temperature management: supports optional external sensor for voltage compensation on lead-acid batteries and cold-charge protection on lithium types. Data monitoring: optional Bluetooth module or remote LCD meter (sold separately) for live status, charging data, and diagnostics. Ignition-controlled start/stop: begins charging automatically when vehicle ignition is on and stops when turned off, or can operate via voltage-sensing control. Continued charging under load: maintains stable output even while 12V appliances are in use, preventing voltage dips or surges. Wake-up function for lithium BMS: automatically re-activates lithium batteries that have entered protection mode. Relay control output: provides a signal to link battery banks under heavy load so the source battery can assist with starting or powering large equipment. Precision sense terminals: optional sense lines bypass voltage drop in long or heavy-gauge cables for more accurate charging control. LED indicators: four status LEDs display charge stage and diagnostic information for clear, at-a-glance monitoring. Technical Specifications Source battery voltage 12V Input voltage range 10.5 – 16V Effective D+ signal range 8 – 16V Maximum charging current (target) 60A Maximum charging power ≈780W Recommended source battery capacity ≥ 80–100Ah Target rated voltage 12V (Lead Acid, AGM, Gel), 12.8V (LiFePO4), 11.1V (Li-ion) Target battery capacity 100 – 520Ah Bulk charge voltage 14.7V (AGM), 14.3V (Gel), 14.4V (Lead Acid), 13.9–14.6V (LiFePO4), 12.6V (Li-ion) Float charge voltage 13.5V (AGM), 13.8V (Gel), 13.5V (Lead Acid), 13.8V (LiFePO4), 12.5V (Li-ion) Temperature compensation −3 mV / °C / 2 V (Lead-acid only) Operating temperature −20 °C to +50 °C Self-consumption current 17 mA Relay signal output 12 V / 1 A Dimensions (L × W × H) 190 × 215 × 70 mm Weight 1.6 kg Warranty 1 year Compatibility & Installation Designed for 12V electrical systems only. Works with all major 12V battery chemistries. Not compatible with 24V systems or mixed-voltage setups. For best results, mount in a ventilated area and connect using properly sized cables and fuses. Optional accessories — including Bluetooth module, temperature sensor and remote LCD meter — provide full monitoring and environmental protection in demanding installations. Documents Available Installation and user guide available for download.
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