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【40A ULTRA-FAST CHARGING】 Fully adjustable 0-60V voltage and 0-40A current to match any battery's needs. Delivers a true 40A output, restoring up to 40Ah of capacity per hour – recharge a flat 12V 100Ah LiFePO₄ battery in just 2.5 hours, 4x faster than a standard 10A charger. Whether for your caravan, boat, or off-grid system, this smart charger cuts charging time while delivering stable and efficient operation. 【3-IN-1 CHARGING MODES】 Three dedicated modes – DC Power Mode (for LiFePO₄ batteries), Lithium Battery Mode, and Lead-Acid Battery Mode – to match your battery type with one simple selection, including AGM and GEL types. Note: AGM/GEL batteries in some vehicles may not accept external charging due to BMS limitations. Check compatibility. Portable carry handle – convenient for use in garage, caravan, or workshop. 【ADVANCED SAFETY & THERMAL MANAGEMENT】 Built with high-efficiency aluminium housing and dual intelligent cooling fans. Chip-level protections include Over-Voltage, Over-Current, Over-Temperature, and Under-Voltage for complete peace of mind during extended high-current charging. The dual fans activate automatically upon connection, with smart current-halving protection triggered at 80°C to prevent overheating – returning to full 40A output as temperatures normalise. No sparks, no overheating, just safe, stable power delivery. 【SMART COLOUR DISPLAY】 TOTAL CONTROL AT A GLANCE – The large, bright LCD screen shows battery voltage, charge current, temperature, and elapsed time in real time. Auto-stop function: set the "Stop" menu to "ON" with a 1A cutoff – charging automatically stops when current drops below 1A, indicating a full charge. Professional-grade battery management without complex menus. 【AFTER-SALES SUPPORT】We're here to help with any pre or post-purchase questions. Please read the user manual carefully before first use – proper setup ensures safe operation and prevents damage to your charger and batteries. Important: the charger powers on in "OFF" mode by default as a safety feature. Set your parameters first, then switch to "ON" to begin charging. You can also change the default to "ON" in the secondary menu if preferred. For optimal performance, always follow the manual.