Wide range use: Diagnose and repair various battery problems, to solve battery power, power acceleration and internal resistance problems. Pulse repair function can help to repair your loss battery and extend battery life. Suitable for all kinds of vehicles, battery lead acid 12V 4AH-100AH: cars, motorcycles, lawn mowers and more. Perfect for keeping your vehicles fully-charged and maintained during year-round battery maintenance or long-term storage. Multiple protection:Built in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits and overheating. Avoid any dangerous situation. ideal for carefree long-term maintenance charging. Easy to use and Simple to connect: Clear positive and negative, easy to connect, and have reverse polarity protection. And with Intelligent Digital Display, displays charging status and battery status, charge voltage, charge current, etc. Battery maintainer: It provides constant voltage charge for optimal maintenance of the battery. And over-charge protection enables optimal battery charging without fear of overcharging. How to use: Before charging: Check your battery parameters is compatible to the charger When charging: 1.Connect the red clamp to the positive pole(+), black clamp to the negative pole. 2.Connect the charger with AC power source, the charger will start to operate. 3.Once the battery is fully charged, the battery bar on screen will in FUL status. Charging completed: Keep the charged status in 1-2 hours is highly recommended, Then, remove the charger. Specifications: Input voltage: 100-240V AC, 50-60Hz Rated output: 12V DC, 5-6A Max. Minimum start voltage: 8.0V Battery range: 4-100Ah Thermal protect: 65'C+/-5'C Battery Type: All SLA batteries (Wet, MF, GEL, VRLA and Flooded), AGM (EFB), LiON Good Cooling System 16-layer fin cooling aluminum sheets and fans are used for cooling, which makes the cooling performance more powerful! Intelligent Digital Display Automatic carousel data display, can show / current / Voltage Smart protection The battery charger offers safety features including reverse-polarity protection, over-current protection, overload protection, over-voltage protection, over-charge protection, and over-temperature protection. WARNING: 1. Do not charge the lithium battery. 2. Turn off the power source before connecting or disconnecting to the battery. 3. It can not activate a dead battery or repair a battery which is damaged seriously; it also can not repair a battery back to new. 4. When charging the battery, you must choose the right charging mode as much as possible, otherwise it will cause damage to your battery 5. The sugeested repair time for motorcycle battery is 5 hours, for car battery is 8 hours.(The same is true when charging, try not to connect it to the battery for a long time) Dimensions (LWH): 1508560mm Specifications: EU plug, US plug, UK plug (optional)