QuantumZERO Walmate USB Wall Charger Adapter for All Phones and Tablets (4 Ports 25W)

I've a Samsung mobile phone so my review is (perhaps) limited to this charger's performance when paired with a Samsung phone.Samsung uses Adaptive Fast Charging, which this QuantumZERO charger evidently does NOT support. In other words, sure you can hook up 1-4 mobile phones simultaneously (I haven't gone beyond 2) and presumably they will all get charged but NOT at the rate that they would have using a Fast Charger. Even a single phone connected does NOT get fast charged.This is a non returnable product so consider it only if you're fine with your phone(s) taking longer to charge than they ordinarily should.Other than that, the built quality seems good and unfortunately I haven't used it enough to be able to guage if it heats up or has any other functional problems.

Very good charger. Charges my Raspberry Pi 3, Lenovo P1m, and a power bank at full rate. The range of current is about 1.8 Amp for my phone and 2 Amp for Raspberry, simultaneously. However, the charger dimension has a flaw. Its a very heavy charger and quite unstable to keep it attached to a power socket horizontally. So you have to use a 3-pin adaptor to use it vertically. I suggest QuantumZero to supply a 3-pin vertical or horizontal adaptor so charger pins don't break due to excessive weight.

The product is definitely good. But one should clearly understand that the 25W is the TOTAL power supplied by the adapter. Which means at 5V output requirements of a typical USB port,you could theoretically deliver 5 Amperes.But if you connect more devices, the maximum amperage will come down linearly. As long as you understand that, its O.K.Wondering if Quantum will come out with a single 3-pin adapter that will connect both 220 V + 2 (or more) USB ports.

Have tried charging 3 devices at a time. It will automagically decide which device gets the max power. I am guessing it gives a max of 2A for 2 devices and the remaining (about 1A) to the 3rd device. It does a decent job of charging. It is not a quick charger so it takes the usual time to charge a typical 3000 mAH battery, i.e. about 2 hrs. I did notice that it gets a bit warm if you charge 2 or more devices at one time. For that reason, I dropped a star. Overall, a good product.

QuantumZERO WalMATE USB Wall Charger Adapter for all phones and tablets (4 Ports 25W) Product does not charge faster as indicated in the description. When connected to a mobile phone it shows 2 hours of charging left for a complete cycle (as shown in the first image named Quantum charger). When I connect my regular One plus charger the charging time drastically reduces to 51 mins.

Please do not buy this product. With a lot of expectations, I ordered it and to my disappointment, it stopped working after 1 month. When I contacted Amazon, they informed me that I cannot even return it. I have to contact the merchant for the return and refund. I highly recommend that you DONT BUY THIS PRODUCT!

USEFULL PRODUCT , QUALITY IS AVERAGEDESIGN AND MATERIAL OF CONSTRUCTION (CERAMIC MATERIAL EXPECTED) SHUD BE IMPROVEDSHOULD GET INSPIRED BY APPLE IPAD CHARGER PLUGS DESIGN QUALITY

A very innovative product. The rating would be changed to 5⭐ after six months. Till date no issues with the product. The greatest hallmark of a good product is its 'absence' through assured use.This product has the quality to be 'absent'.