Describe:Once the battery reaches 100% charge, the product will automatically switch its output voltage to a safe storage or float level, so there is no need to worry about damage from overcharging.It has multiple protections and functions, namely reverse polarity protection, short circuit protection, overheat protection function, voltage regulation technology and voltage detection function.This product is made of metal and electronic component materials for durability.Suitable for 12V 24V (6Ah-200Ah) motorcycles, , minivans, agricultural equipment, dry batteries, water batteries, lead-acid maintenance-free batteries, start-stop, gel batteries (Not suitable for lithium batteries).Product Name: High Frequency Pulse Repair ChargerMaterial: metalColor as shownModel: 400A: 220WInput voltage: 120V-250V wide voltageOutput voltage: 12V /24VOutput current: 7-8AFrequency: 50-60HzFeatures: good insulation, high efficiency, durable cord length: 80 cmPlug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.Package Contents:1X battery charger1X Chinese and English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.