All in One - Fully Automatic 6-Amp 12V Automotive Battery Charger Intelligent, smaller design with enhanced power output. Functions as a battery charger, battery maintainer, trickle charger, and battery desulphator. Designed to charge or maintain all automotive, marine, and household 12V lead acid deep cycle batteries, including AGM, GEL, SLA, and flooded cell batteries. Compatible with liquid electrolyte batteries used in cars, trucks, SUVs, motorcycles, lawnmowers, boats, and other equipment. Not compatible with lithium batteries. Restore your battery – Features a built-in repair mode and advanced charging technology to help recover weak or inactive batteries and extend their lifespan. If the battery does not charge under normal mode, use repair mode. Utilizes high and low frequency pulse technology for effective desulphation and activation. Note: Cannot revive completely dead batteries or repair physically damaged batteries. Enjoy accurate charging – Equipped with a backlit LCD display that clearly shows the charging status and battery condition. Built-in thermal sensor detects ambient temperature and adjusts the charging voltage accordingly to prevent overcharging in hot environments and undercharging in cold conditions. Smart memory function – The charger remembers the last used charging mode before power disconnection, automatically returning to the previous setting after reconnection. Convenient for repeated use. (Note: Repair mode does not have memory function.) This device is for battery charging only and cannot start a vehicle. Requires proper electrical connection. Charging protection – Heavy-duty charging cables with heat-resistant copper wiring designed to resist oxidation and breakage. Includes multiple safety protections: overload, overvoltage, overcurrent, short circuit, reverse polarity, overheating, and undervoltage protection. Winter and summer modes – Switch to winter mode when ambient temperature is below 10°C (50°F) for optimal performance in cold weather. Switch to summer mode when temperature exceeds 28°C (82.4°F) to prevent overloading in high heat. Built-in cooling fan – Internal cooling fan efficiently dissipates heat during extended operation, maintaining safe operating temperatures. Durable flame-retardant ABS housing provides resistance to electric shock, corrosion, and fire hazards.