【Applications】Prohibited from charging lithium batteries, Voltages: 12V 8A, 24V 4A, Minimum starting voltage: 6-150Ah (Suitable for AGM, GEL SLA VRLA). This 12v/24v smart battery charger can detect and fix battery problems and extend the battery life of vehicles, trucks, motorcycles, boats, 4x4 【Multi-protections】Spark protection, overload protection, positron and negatron misconnection, short circuit, overheating, the charger protects your safety well. Moreover, the fans on both sides of the charger can prevent overheating during charging, thus extending the battery life 【Intelligent LCD Display】This car battery charger can automatically detect the outside temperature, so you can change between winter and summer modes, you can change the current and voltage without using manual fixing, Once the battery is fully charged, the current charging will stop automatically. The temperature, voltage, current data including the battery volume will be renewed and displayed automatically. 【Repair