Wednesday, December 10, 2014

Product review: YOOBAO 31W 4-Port Desktop USB Charger


This unassuming looking charger works very well. It charged 4 mobile devices (2 tablets and 2 phones) at full AC rate and remains cool while doing it.

♦ The charger size: 4.875" x 3.25" x 1.125"
♦ The charger weight: 6.75 oz
♦ The AC cord length: 56"

I measured the chargers performance when it was charging 4 devices at the same time as well as one at a time. I used both an Apple device and an Android device and saw that both worked at very good rate. The Android devices work at optimal rate on all 4 ports and iPad Mini worked at at optimal rate on the two 2A ports and below optimal on the two 1A ports (this is expected, as Apple devices need more than 1A to charge at full rate). I am including the detailed current monitor readings below for those who like to see the technical details.

➨ Test results
======================
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✔ Samsung Galaxy Nexus Phone (the only device charging)
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Port 1: 1.03A/5.07V
Port 2: 1.03A/5.06V
Port 3: 1.03A/5.07V
Port 4: 1.02A/5.07V

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✔ Samsung Galaxy Nexus Phone (with 3 other devices charging)
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1.03A/5.05V
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✔ iPad Mini (the only device charging)
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Port 1: 0.93A/5.08V
Port 2: 0.92A/5.08V
Port 3: 1.32A/5.08V
Port 4: 1.34A/5.09V

--------------------------
✔ iPad Mini (with 3 other devices charging)
--------------------------
1.32A/5.08V
--------------------------

To summarize this charger did well charging my 4 devices at the same time. It perform at optimal rate for Android devices on all ports. It worked well on 2A ports with iPad Mini.

You can find it on Amazon by following this link.



Ali Julia review ★★★★★

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