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

Excellent, Excellent battery charger. It charge a a REAL DEAD battery. I recommend this charger to anyone who doesn't know twits about charging batteries. Considering the cost of $350 for a new battery, $23 is nothing. Plus it always around for charging and maintaining other batteries in house, that is a plus. I charge my battery overnite after receiving charger, This morning I have a fully charged battery. Time to test it out on car drive.........$$$$$$$$$$....LOL...LOL...instruction manual is to small for these bad eyes, so go to Utube for video instructions. thank guys.

Needed this quickly to check parent's car battery. At first thought unit broken as wouldn't go above 12.1 v on old battery but that was because the old battery was out of warranty and needed to be replaced. When tried charger on new battery read about 14.6 V which is good and indicated new battery was almost fully charged. The instructions are limited but basically just hook positive then negative cables to battery and if battery has any charge the display should show after about 20 seconds. Next plug charger into AC outlet and should start the charging process as described in directions (desulfurization then trickle then ramp up to full charge). Be sure to press the MODE button to put charger in right mode like STD for standard lead acid batteries. When done should say FULL or FUL then unplug AC plug then disconnect negative then positive cables in that order from battery. Can't speak to recovery option for charger but not really looking for that feature just something to check battery and charge it if possible. Basically charger is doing everything automatically.

Did exactly as stated in description. Would have gave it 5 stars but the leads to the battery could have been a bit longer and the clamps that connects to the battery were not large enough to clampmon securely to the terimal on the post of the battery.

Brilliant little charger, had read a lot of reviews and the people are correct this is a great little charger. My jeep and mini cooper had been sitting since October last year and this charger brought them back to life .. I tried to charge them with other chargers and they were still dead. Put them in charge overnight and the next the cars jumped in to life .. wow great charger and an excellent price , was looking at around $400 to $500 for a couple of batteries .. brilliant product guys ..

Purchased over a year ago to have "just in case" because the price was right. Used it a few weeks ago to diagnose repair and charge my truck battery. Let it run overnight in the garage 9-10 hours. It switched the charging off when completed. PERFECT for a first use.

This 10A charger has saved me on several occasions. It is ideal for charging car, motorcycle or even tool batteries. I like that it has protection against overload and inverted polarity, which gives a lot of peace of mind. Charging is fast and efficient, and the control panel is very intuitive. Without a doubt, an excellent tool to have in the garage.

I was not sure what to expect with this little charger however it arrived quickly and I put it to the test. This battery charger did everything I needed it to. Very quick charging speed for my AGM Jeep battery. I followed the instructions as described. The charger knew the battery was AGM and went to that setting. It then completed the charge in about two hours. The durability seems perfect for my needs. I highly recommend this charger. Nice bright backlit display.

Good product. I would've gave it 5 stars if my car started after i fully charged it. I did have to jumpstart my car but once it got going, the battery didn't die till i turned the engine off. Btw, my battery was dead. Dont expect this product to fully revive your dead battery but you can drive on it for a long time without worrying about it dieing while your on road.Update: they issued me a refund when they read my comments (they didnt have too). The customer service and attention to customer needs is outstanding. I will be back to shop with them. Again the product works and is good but the service placed them in another level. Thanks