• Reviews around battery (2.38 of 5)

    GOOLOO 6V/12V Smart Battery Charger and Maintainer 6-Amp Full Automatic 6-Stages Trickle Charging with Clamps for Car,Motorcycle,Lawn Mower,Boat RV,SUV,ATV,Sealed Lead Acid Battery-Repair Batteries

    • Haven't been driving my car during stay at home order, and found out my car's battery is totally dead
    • I had a DEAD battery it charge my truck up in about 8 or 9 hours.
    • When I went out to start my car the battery was pretty much dead
    • Great battery charger very compact, so far seems to work very well.
    • As far as I can tell, this product might be useful for trickle-charging a slightly depleted battery, or possible for maintaining a battery over time, but it's not useful for recharging a depleted 12V battery.
    • Trust me, the battery won't even turn on a light in my car
    • Worked great to top off two batteries in cars we are not driving much
    • So smart that a failed battery no longer registered as 12 volt... when I realized that was trying to charge at
    • I connected the charger to a good 400CCA 12 volt battery with a quality volt meter across the charger clips and a quality ammeter in series; the charger readout was within 0.1 volt of the battery voltage at first and the voltage increased until it read 14.5 volts.
    • I'm guessing a lot the bad reviews are from people with bad batteries getting mad because the charger isn't working right.
    • If your battery is deteriorated it may not be repaired, so this function is a best effort case
    • I'm hoping to get another dead car battery to use this on.
    • Used it to revive a optima yellow top battery
    • Easy to use, you can put a 12V dead battery in one place, and it can be fully charged in 24 hours or less.
    • After nearly 20 hours charging, the dead battery comes back to live
    • I found this can charge and repair the dead battery
    • It does take some time to charge the battery dead battery though, but it's worth the waiting
    • Definitely helps because I don't drive my cars everyday, the last couple months my cars been sitting there and the battery is completely dead, even if I was going to drive them everyday, it would take super long to charge them, with this charged them full power in few hours.
    • This smart battery charger is very effective and efficient
    • I had a dead battery and needed to use my car.
    • "sulfation"--which is what kills a battery.
    • Fantastic little charger - was able to revive a severely AGM battery from the dead
    • Si, basically, it will top off your battery if it's cranking a little slow or been sitting in the driveway for a while
    • This was what I needed to bring a almost dead battery back to usable strength
    • But it won't rescue a dead battery
    • When not driving it for a week or two, I just use this overnight and the battery has stayed strong and healthy.
    • After I purchased this smart battery charger from amazon, my life has become much easier
    • I charged 1 discharged good battery, 1 severely disharged good battery and repaired 1 battery dead for a year.
    • The battery in my Trailblazer died from not using it for a few months
    • This charger came just in time for my dead battery at the house
    • This is not suitable for lithium ion batteries per the directions.applications that this is suggested for would be battery types gel, wet, MF and all other 6 volt or 12 volt lead acid batteries
    • Easy to use, you can put a 12V dead battery in one place, and it can be fully charged in 24 hours or less.
    • This is a 6 year old battery that I pretty much destroyed, and its working almost as good as it did when I got the battery
    • This Gooloo tells me those same batteries are bad
    • It's a real smart battery charger and we do a lot of our own work, so there's a lot of demand for it
    • Very compact and useful battery charger.
    • I have a dead car battery for months
    • This is a very user friendly car battery charger
    • I had a Dead car battery
    • I have a dead battery from leaving a light on in my car all night
    • This battery is perfect for long road trips, especially with electronics plugged into the car
    • My battery was dead as far as starting a car goes, measured at 11.8v with a multimeter
    • With a healthy good battery they can read the batteries condition and adjust accordingly.
    • This setup is great to recharge a dead battery over night
    • This replaced a bulky older battery charger I had from years ago.
    • People complaining here that it detected their 12v battery as 6v is because when a battery is weak enough to be replaced some of the plates in the battery are dead and they don't provide enough volts for the charger to recognise the battery properly
    • bought in July, now early November, no longer supplying more than 12.7/12.8...ruins your battery as it was not getting fully recharged...
    • It stays in repair mode for days without indicating the battery is bad and no increase in charge.
    • It will not charge a dead battery because it can't read it
    • I keep it hooked up and plugged in when not using and it seems to be monitoring the battery well
    • Well, it ended up taking about 36 hours but the battery has been fine
    • Bought this GOOLOO 6V/12V Smart Battery Charger in January 2020 because of all the glowing reviews
    • Repeatedly tried to run it to recharge a dead 12v battery in my car
    • Great battery charger
    • Mini and lightweight, good backup rechargeable battery, 3 different charging functions, different volts for motorcycles and cars, really nice
    • offers a wide range of flexible features, including the fact that it works on all types of 6 volt, and 12 volt lead-acid batteries.
    • I need a battery that can charge a completely dead battery without performing a smart check
    • I had to let my old charger charge for only 2 hours at a time or it will burn up the battery.
    • It also charged my near dead battery pretty quickly.
    • This battery is really easy to use, it is nice to recommend it
    • chargersSmart chargers are only good if you have a healthy battery.
    • Have had two batteries to charge from dead and I really appreciated the ease of use and the running feedback on battery health and rate of charging
    • Great battery charger for my scooter
    • Old school "dumb" battery charger charged the batteries no problem
    • This is a great device has maintained my motorcycle/boat battery always charged , couple of weeks ago had an issue with the device contacted Customer care that came back to me within 24 hrs, representative was very attentive and addressed my issue on an expedited manner as device was on the warranty period was replaced and sent as fast as when I purchased it