Review on 🔋 GOOLOO 2amp Smart Battery Charger - Optimized for Cars, Motorcycles, Boats, Trucks, SUVs | Automatic Maintainer, 12V Chargers, Trickle Charger, Battery Desulfator with Advanced Protection by James Baker

I've only had the device for a week, so I can only report my first tests and thoughts. The charging method with different charging stages works well. This is not a fast charger, but it can fully charge a car battery, etc. The float sustain voltage levels are sufficient to keep the battery alive for as long as you want. with battery clamps. Be careful if you lose your 120VAC power supply due to a power outage or unintentional unplugging! It represents a <0.040 amp drain on your battery! 0.040 x 24 hours = 0.96Ah. 30 days x 0.96Ah = 28Ah. Motorcycle, mowers are dead or nearby. The car battery will be in trouble. It's important to check your charger every few days to see how it's working! If the backlit display is off but you can see the battery voltage, this indicates that the power supply has been interrupted. Many battery maintainers do the same thing, charging the battery when utility power is unavailable. I think this is very bad design. Many only know that the maintenance staff fried their batteries. Jim