YONHANBattery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation

This is one smart charger. It analyzed the battery and adjusted to what the battery needs. It brought my dead battery back to life. Saved me money as I was going to buy a new one. It’s small but powerful and easy to use, as it does all the work. Plus you can use it for a maintainer.

My car was parked outside in the winter, and the battery was completely dead. I jumpstarted the car, drove it for a while, but it wouldn’t charge at all. I thought battery was completely dead and I will have to buy a new one. Even though my battery was under warranty, last invoice and they wouldn’t replace the battery without the invoice. I was in a tough spot. Wild browsing I came across this Charger. Not only charge the battery. The repair feature completely repaired the battery and now it’s working as a new one. I had one more old battery laying around in the house, waiting to be recycled, just to test. I hope this charger to that battery, and This charger not only repaired the battery and now it’s functional as well. At AutoZone and Toyota told us the battery was completely dead when they tried to charge it overnight.So the bottom line is, either These dealer are just trying to sell us stuff that we don’t need, or discharge is just super amazing. Or both.

I admit I do not know much about restoring power to a dead battery, but mine died and I didn't know what to do so I read the reviews and decided to get this charger. It was very simple and didn't take very long and my car is up and running. Fantastic and worth every penny! Fantastic power.

Good reliable charger for multiple battery types. I use this to charge my 12v ham radio field batteries and it works great. The included clips work well but it is also easy to modify for different connector types if you need. Unit stays cool with the built in fan and the unit will power down when finished giving good safety.

Forgot to disconnect the batteries in our golf cart for the winter, attached my old battery charger, which I have used for my motorcycle and suv, and it worked fine, but when I hooked it to one of the golf cart batteries it didn’t charge it, so I bought this system to try and bring them back. It worked! Didn’t take too long. Did all four 12v batteries, one at a time, in less than 2 days.

This is an incredible piece of technology. I did not know there were such things as "smart" chargers. I thought for sure I would have to buy a new battery. After I hooked up the charger, it went through it's start-up procedure and then went into repair mode. It was on all night and the next morning I had a fully charged and repaired battery. This is a 12 volt battery in our Yamaha golf cart. It's now been around two weeks ago and all is well, the battery is holding its charge. I am amazed a charger could do a battery repair. I highly recommend this product. Saved me a lot of dollars.

This has turned out to be a great product! I've had it over a year and it has charged my car batteries and my mower battery. It looks cheap but it works great! Very versatile in the types of batteries it can charge too. Highly recoomend this.

Works great! did exactly what I needed. My VW bug has an issue with cold weather. The battery always seems to drain. this charger on the repair mode not only fixed my battery so it could be charged but then charged it up. When its hooked up to that battery you can see how much power is in your battery. very nice. only concern was the one clip. the plastic cover slid off. Made it hard to remove from battery. I've glued it and next time I use it will see if that helped. I would definitely recommend this charger