Reddit reviews SUAOKI Car Battery Charger 4 Amp 6/12V Fully Automatic Battery Maintainer for Car Truck Motorcycle

AUTOMATIC VOLTAGE DETECTION: It automatically detects the need for 12V or 6V output, making it even easier and safer to use and features a pre - programmed 8-stage charging process that enables optimal battery charging without fear of overcharging.LCD SCREEN: Using a backlit LCD display, the SUAOKI battery charger clearly and visibly shows charging voltage, current, battery type, charging mode, and the percentage of power remaining. When the charger is turned on, it restores the last settings used, making your life easier. It also automatically detects sulfated batteries and attempts to repair them if possibleMULTI-PROTECTION: The SUAOKI battery charger offers safety features including reverse-polarity protection, over-current protection, overload protection, over-voltage protection, over-charge protection, and over-temperature protection; also comes with spark-proof clampsWIDE RANGE USE: Can be efficiently used with all SLA batteries (Wet, MF, GEL and VRLA), AGM (Flooded and EFB), LiON (12V LiFePO4) which means it can be used for the batteries in cars,boats, motorcycle, ATVs and others.BATTERY MAINTAINER: It provides constant voltage charge 24/7 for optimal maintenance of the battery