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.