I have it for a year and a half, bought it for around 30 euros. The best thing! It restores the battery and maintains it properly.

While from the manual and the way it operates it convinces me that it does the job, I have to say that I used an EFB battery to charge at 12V/4A and it ruined it. From a battery that lasted 1 month, as soon as I charged it with this specific charger, it didn't even last 24 hours after a full charge.
Great caution for those who have EFB batteries. I don't know if it will perform better in another mode, but because I had to buy a new battery because of this specific charger, I won't risk it again with the new one. I will look for another charger.

Quite good build quality. Automatically recognized the battery. Charged a 5-year-old battery in 8 hours, heated up slightly. If it withstands over time, it will be a very good choice.

After a lot of searching in the market and already having it in my possession for a year, I simply tell you that I highly recommend it!

It worked for three or four times and then broke, it shows that the battery is at 100% while it is empty, the money I spent is wasted

From 40 A to 200 A charging very well. Slow and steady charging..... I think I have it for 3 years, it is permanently open for battery maintenance. . . .

Great machine! User-friendly! And for charging motorcycle and car batteries, you can also see if the battery is on its last legs

Well, in a new used car market, the battery (Varta 72Ah) left me as soon as the first cold came, I started it with help and then it seemed to struggle. I had given up on it, but before I bought a new one, I decided to try my luck with this charger. I charged it for a whole night - everything went well, the charger's menu is very easy to use, it showed at the end that the battery is FULL and luckily I didn't have to find out if it shows if a battery has a problem, as previous reviewers mentioned. Indeed, the manual states that it has this function. The crash test for the battery was the "Hope" bad weather. The car had been stationary for two days and last night with a temperature of 1 degree, I went to start it. The battery worked like new! The same goes for today with similar temperatures. I don't know how much life extension it gave it. If I remember, I will update.

With closed eyes, guys.. I charged a fully discharged 10-year-old tractor battery (90A in 20 hours) and since then it works like new, unbelievable! I revived two car batteries and one motorcycle, everything is perfect!

Battery 120mAh which was not fully discharged (it started the car normally) after 24 hours of charging did not reach full

Flawless and silent charger built with proper materials does not rely on a fan for its functionality. I observed it charging and discharging the voltage of three batteries, including two worn-out ones, until it eventually brought them all to 13 volts. It does not provide fast charging, but this is beneficial for our (lead-acid) battery as slow charging prolongs its lifespan

I charged my car battery, which had completely died due to the car's inactivity. I thought it wouldn't make it since the battery had completely discharged. I charged it normally to full within 14 hours. The battery was a 65 amp. I installed it and everything was perfect... like new with a very good start. It covered me completely.

It does not support fast charging, so you may need to charge it for 10-12 hours for an empty battery.
I charged mine twice without any problem, the first time it was about 30% and it took all night, the second time it was over 50% and it took about 7 hours. For the reason I bought it, it completely satisfied me.