About this item

• BATTERY CHARGER, MAINTAINER & DESULFATOR --IT IS NOT A CAR JUMP STARTER. GOOLOO S4 is an all-weather battery charger, battery maintainer, battery desulfator, works excellently with all 6volt and 12 volt lead-acid locomotive batteries like WET, SLA, GEL, AGM, FLOODED, VRLA batteries and 12volt LiFePO4 batteries.
• OPTIMIZING BATTERY PRECISELY-- An 10-stage charging program automatically analyze battery sulfation problem, repair and pulse current charging devulcanize battery to restore the battery lost performance , compensation charging maintain the battery and ensure optimal performance without overcharging.
• PLUG TO PLAY-- GOOLOO S4 comes with an easy-to-follow LCD display showing charging voltage, charging mode, battery charging bar and battery levels. Built-in auto memory keeper allows for returning to the last charge mode when connected. Just connect the corresponding poles, press the button to select the mode, and forget.
• VERSATILE DESIGN-- GOOLOO S4 smart battery charger and maintainer can also be used as a DC power supply for powering some of the 12V DC devices( 5-14 volt, 3A MAX CURRENT) or as a memory keeper when replacing a battery. The convenient hooks for easy hanging on the wall, and weigh only 0.6kg (1.3lbs).
• TOTAL PROTECTION-- GOOLOO S4 smart battery charger comes multiple safety features to ensure maximum safety during use. It offers short circuit protection, overload protection, low-voltage protection, high-voltage protection, overcharge protection, over-temperature protection, reverse-connection protection, and over-current protection. It's got IP65 protection which means you can use it anywhere with an outlet.
• AUTO REPAIR WHEN CONNECTED--The auto repair mode is suitable for topping off stored batteries between uses so that they are always ready to go when you are. Note: It may not be possible to repair a deep-discharged battery.
• CHARGING PEAK CURRENT--It supplies 4A current for charging up to 100AH 12V lead-acid batteries, and 2A current for up to 30AH 6V lead-acid batteries.
• TROUBLESHOOTING GUIDE--If you ever troubled with our smart battery charger, please kindly find our Troubleshooting Guide Manual ON the product information page, below the technical details and download it for a reference.