12 Volt Battery Charger 12V 24V 12A Automotive Smart Car Deep Cycle Battery Chargers Maintainer Intelligent Pulse Repair for Boat Marine Truck Lawn Mower with Terminal Clean Brush

Easy to understand operation. Automatic mode takes the guess work out of connecting it to your car battery. I like the display showing what my voltage and amperage is as it is charging.Works very well

Works as described. Very useful during cold winter days when not driving for several days.

Not really happy with this when my battery was completely dead. It did not register. The battery was even there. I had to pull it by connecting a 9 V battery to it to make it thing through the battery there before I could get it to work to charge my battery For my automobile

This 10 amp charger replaces a 30 year old 10 amp charger and the improvements in the technology are impressive.I also have a much more expensive "fast car starting charger." My big charger cannot charge a dead battery but this little charger can charge a discharged battery if you flip the switch to manual charge. The digital panel on the charger showed a charge rate of as high as 16 amps on the 12 volt battery. After a couple of minutes the charge rate dropped back to 10 amps. I ran the manual charging for about 10 minutes and then switched over to automatic charging to complete the charging process. The battery cables are only a couple of feet long but the charger is small and light and can be set near the battery. I used an extension cable to reach my backhoe which is about 50 feet from the house. This is NOT a waterproof unit so one must protect the charger from rain and snow. This Chinese unit is competitive with other similar chargers that cost twice as much. Great value for the price 'charged.'

Charges 12 or 24 volts. Has recovered several batteries. Has an auto or manual switch. Displays amps during charging, which makes it easy to tell if the battery is dead (if its still at several amps a day later, or below 12.6v, it's dead).Case is pretty open and the fan makes noise. Inside my marine environment boat it hasn't rusted or failed yet. I wouldn't leave this outside in rain or dew.

This is my second one (have the original for years & still being used !Although people have had problems with:A) Display (unplug when not being used and never push on the actual screenB) Fan (many complain of fan). I have same problem & since replaced both units with a “60 x 60 x 25 mm double ball bearing fan.You shouldn’t have to do this but even years later the company has not made that change.Either way this “el cheapo” charger continues to work both for charging as well as trickle charging.No speed demon but like the energizer it just keeps working !

The battery leads are way too short. AC lead is also too short. The automatic function assumes a depleted 24V is 12V and will not charge. 10A is really only a trickle charge. "User manual" is a silly useless mess of bad English that explains only the obvious. No explanation of all the panel lights or what the flashing colors mean. Low contrast display hard to read unless angle is right and no more than 20" away. Nevertheless, it will eventually charge a 12V battery. Good luck with 24V use. Should have a 12V/24V switch. Good price.

I needed this to force charge my car battery from 0.0 volts. It worked! Left it 20min to get a good charge and switched to auto to not over do it. I put my battery on a smart charger after just in case, but no way was anything else but manual going to bring back my battery. It's very hard to find manual chargers that do this these days and for the price it's incredible. I have a charged battery now at 13.5v. Get em while their hot.