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

I used this charger after my old one blew out charging a 12V gel battery.It works fine, has a nice status display and did a nice quick job getting my battery up to snuff.

Working as expected! Great value and easy to use.

Worked great out of the box. Charged a battery that was dead for months. Lightweight, small form, and extremely easy to use.

Incredible product, with many modes except its has (1) major weakness. It has multiple modes but unfortunately the info display has NO BACKLIGHTING making it very difficult to check and see what mode the charger is in. Fix the display, and the product should be a big hit and seller.

I was impressed by how easy the charger worked. Seriously, just hook it up to the battery and it tells you what if any voltage is left in your battery. Then make sure it's set on the correct voltage and then plug it in. If I can get it to work correctly then any one can.

Feels solid, digital panel works great and easy to use. Charged my battery quickly

Useing on 12 volt. Works good

My 6-year-old Audi Q5 can start OK, because it has a strong starter (has auto start/off) but because of it's low state of charge, that function no longer works. I bought a trickle charger before this one which charged well on a 2019 Corolla that's being driven very little and infrequent but not on my 2018 Audi Q5. That other trickle charger charged my battery from 11.7 to 11.9V. I bought this charger due to it has a separate mode for AGM and Repair because my Audi battery is AGM. FYI, manual says you need to wait at least an hour from the last usage of your battery.So, I first charged it in the AGM mode and the display went from 50% to 100% in only 10 minutes but the voltage only improved to 12V. Yesterday I put it on repair mode, and it took 8 hours to show full. I did not wait for it to turn off by itself. The battery now has improved from 12V to 12.55V; from 50% to 80% capacity on a 6-year-old large AGM battery. I did not bother to remove the power cords due to my bad back and the battery is situated in the trunk all the way behind the backseat. Luckily it does not appear to cause any damage to my car. During the repair mode, I monitored the battery temperature with my laser thermometer; the charger nor the battery did not get warm and stayed in the low 70's.PROS:1) Has separate AGM and Motorcycle and repair mode.2) Great LCD lighted display will show the battery level when you hook it up even before you plug in the power cord. It will also show charger temperature, charging current & status, battery voltage & etc.3) Smart charger has a built-in fan to stay cool and it will alter the charging power with respect to the battery status. It will start out slow and rarely goes to the full 10A, then it will decrease the power when you reached half full then even lower at 75%. Even when it's @100% charged, it will trickle charge to the max then turn itself off (fan off but light still on) and display OFF.4) Great repair mode that reconditioned my 6 year old AGM battery from 50% to 80% capacity.5) Very good price; I paid $24 shipped.CONS:1) Very short cord, you will need an extension cord. But it's no big deal.2) Per owner's manual, in Motorcycle mode, it will charge battery to full then turn off and turn back on when voltage drops below 12.5V. But does that mean you cannot maintain your battery in the other modes? It also states not to leave the charger unattended over 12 hours. Therefore, I don't think this is a battery maintainer which is fine for me.................................................................With this battery charger, I can charge my batteries before and after I go on a vacation and let not my batteries charge level go down too low thus prolongs the life of my batteries. I only had it for a week and so far, I am very happy about this product. I will update if the charger quit or have some problems.

A great charger at a great price.

Thank you Amazon.It works well and hope it will do till future.

This car battery charger is amazing , it does everything automatically and can charge a dead battery in about 3 hours. I left it hooked up for 2 weeks and the battery was still fully charged when I started the car . Since I'm not driving much I just hooked it up again and let it do it's work . Easy to follow instruction

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Brilliant. Jump started a car that had been parked off for months. Drove it around long distance and the battery did not hold a charge.Bought this charger and it restored / repaired the battery.