Newly developed in 2021 12V 2A This car charger is the latest model comprehensive protection for your battery.Microprocessor Control (CPU) [WIDE RANGE OF APPLICATIONS] This intelligent battery charger is designed for all types of 12V and 6V lead-Acid batteries that within 6-150Ah(12V)and 6v, including AGM, GEL, SLA, Flooded (WET), or any common automotive, deep-cycle, marine,or maintenance-free battery. not for use with lithium batteries battery, not compatible with 24-volt battery. [MULTIPLE SAFETY PROTECTION] This Automatic Smart Battery Charger built-in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits, and overheating,So you can leave the charger connected to the battery indefinitely. [LCD SCREEN] Using a backlit LCD display, clearly and visibly shows charging voltage, current, battery type, charging mode, and the percentage of power remaining. Allow quick and easy to use the trickle charger in the dark or at night. Built-in advanced battery REPAIR mode to help to recover old/idle batteries and extend battery life. The high-frequency and low-frequency pulse technology has good repair and activation effects. Note: It can not activate a dead battery or repair a battery that is damaged seriously. Microprocessor Control : 1307550mm Weight: 280g [WHAT YOU GET] 1 x Battery Charger for cars, 1 x charger manual. Welcome to contact us if you have any questions. Remark: for 4Ah-15Ah battery, we suggest use Repairinch mode, because the battery size is too small, use pulse charge is very good for small size battery. Automatically detect the ambient temperature. The charger will automatically adjust the charging voltage according to the ambient temperature, so that it can be fully charged in winter and not overcharged in summer. Below 10DegreeC, it will automatically enter winter mode. 28 and above will automatically enter the summer mode.