Slow charging and after 1 year it burned out!!!!! I must have used it 6 times. I didn't even manage to break even. With 10 euros I could have bought about 50 regular batteries

While for two years it worked flawlessly and charged 18650 batteries perfectly in a short time, suddenly one day it started emitting smoke!!
I don't know the reason. But it was disappointing!

Excellent product for the money.
I believe it offers a very good quality-price ratio.
I highly recommend it.

Quality construction and very impressive that it has an output to charge devices, meaning it also works as a power bank. The LEDs provide satisfactory information about the charging stages. It hasn't been used enough yet to test its durability

Very good build quality. The charging port is faulty and it is useless.

The product is of very poor quality. After 4-5 charges, the input power interface broke and the product is useless.

It is a good product for charging aaa batteries. It is fine. Of course, it requires an external transformer 5v

Charges the batteries perfectly, shows you the charging stages in percentages, does not heat up to worry you, does its job well.

For its price, it's fine. It charges my flashlight's 18650 batteries just fine. I deduct one star because it charges with a micro USB cable. It should have charged with a USB type C. I hope it also has durability over time. I will come back in the future.

After a few days, one of the four ports incorrectly shows that the battery is fully charged. Fortunately, the other three ports are working correctly...

It burned my new battery in the fast charge port. It does not fully charge the batteries (new ones).

Someone commented that it has a Type C port while it is actually a micro USB, be careful

For now, no problem, it works as it should and as you would expect it to work.
The only unpleasant thing is that it does not charge regular alkaline batteries.

It charges the batteries easily and quickly! It seems well-made. I haven't had it for a long time, so time will tell its durability! So far, everything is great!

It charges AA and AAA batteries. I mainly charge batteries for children's toys. Now, for time, method, percentage, charging quality, etc., it does a great job for 10 euros. I consider it a very good choice.

Very good charger, it has an indication of how full the battery is, it works perfectly! It's a shame I didn't buy 2 packs together. I suppose the charging speed also depends on the battery.

I don't use it much because I don't have many devices with removable batteries. It shows good construction.

It charges up to 2 amps when you have one battery (you put it all the way to the right).
When you have two batteries, it charges up to 1 amp.
When you have three, it charges up to 0.7 amps.
When you have four, it charges up to 0.5 amps.
Hold the button for a while and the intensity changes.

For its price, it is decent because it charges AA/AAA and 18650 batteries, which are the most well-known. It also has a wide range of batteries it can charge, and it indicates which ones they are.

It is worth mentioning that it does not measure capacity (mAh) nor discharge, but these features can be found in more expensive models.

It has been working without problems for a few years.

For its price and the fact that it charges multiple types of batteries, it is awesome. It receives power through a type-c cable and supports QC3.0 (Quick Charge 3.0) with the corresponding cable. This means that you can finally charge the batteries with a Power Bank. Detailed indications on the screen. I would like more detailed instructions on what does what.

For about a year it worked great, but when you buy something you don't expect it to have such a short expiration date. It was very good while it lasted, but had a very short lifespan. I would prefer to spend a little more on another device so that I don't have to go through the process of finding something else so soon. In the end, I do not recommend it.
UPDATE: Eventually, I realized that the problem was with the power supply I had connected to the device, which means that everything mentioned above is irrelevant and the device works amazingly for about 2 years and still going! In the end, it's an incredible value for money!

You do your job, charge the batteries correctly, I don't think you want anything else to do if you don't have crazy demands

It never writes that it wants extra things !!!! How it is USB !! It never works at maximum with two batteries because it wants 5v/2A. Money wasted for nothing .........

The Toshiba batteries were... unacceptable... I tried other batteries and they had no problem... good charger

Excellent product for its price.
I believe it is a very good value for money.
I highly recommend it.

Charges everything. On the screen it shows how many amps it has charged so far. The screen turns off if you leave the button pressed or after a few minutes. It doesn't heat up at all.

So far no problem.. Good construction and the device does not heat up while charging. I would definitely recommend it.

Honest product that charges up to 4 batteries simultaneously but separately, as one may be empty and the other almost full, etc. A great advantage. Maximum charging speed 2000, minimum 500. Contrary to what I read, the batteries heated up at times for me. It takes power from a USB cable, which gives it portability (can be used with a laptop, mobile charger, car charger, power bank). It is good for the charger to be 2.1 for maximum charging speed. The only thing it doesn't do as promised is charging devices from its output. Although I saw it working in a video on YouTube, it doesn't happen in practice. This would bring it down to 4 stars, but due to its low price and portability, it deserves an excellent rating.

Upgrade from an older one that charged with 100mA and this one goes from 500-2000mA noticeable difference. VFM

It charges 4 batteries of all sizes. It automatically calculates the charging power needed. If not, you can adjust it yourself. Excellent for its price.

Good construction except for the point where the USB cable is inserted, it seems ready to break. It charges the batteries correctly and stops when they are full. It does not increase temperature. Get a 2.1A wall charger to do your job properly. The package includes a USB cable.