Saturday, February 1, 2014
Product review: Noosy Qi Wireless Charger for Cell Phones and Tablets
I am very impressed with this wireless charger. It is Qi standard charger and I am using it to charge Nexus 5 phone. A wireless charger has some inefficiency compared to the wired charger, so I expected that it will charge the phone significantly slower. However, I was pleasantry surprised!
To test the charger I charged the phone directly when plugged into the wall charger that came with this wireless charger (it is used to power the wireless) as well as laying the phone on top of the wireless pad. I ran two sets of tests, first I measured the current with a current monitor. Second I ran a 10 minute charging test. I use these two tests on all chargers I own because it lets me to make unbiased comparison purely based on the performance numbers. Since the charging speed is non-linear I start charging each device from approximately the same charge level.
The wireless charging was only slightly slowler than wired. The stated inefficiency of wireless charging is documented as 74% of wired charging. So this means it is getting 0.92A out of 1.26A shown on the current monitor.
✔ Nexus 5 Phone (wireless)
AC ----- 6% change in charge in 10 minutes
current monitor: ~~~~~ 1.26A and 5.08V
✔ Nexus 5 Phone (pluged in directly into Noosy wall charger)
AC ----- 7% change in charge in 10 minutes
current monitor: ~~~~~ 0.94A and 5.03V
This wireless charger is 4" across and 0.375" thick. It comes with a 56" AC cord.
Input requirement: 5V/2A
Charging effeciency: 74%
Transmission distance: 0.31" or less
Operating temperature range: 32°F to 45°F56"
As much as I am impressed with this wireless charger there one thing I would have liked to be different:
I would have liked the surface to be rubberised so it has more traction with the back of the phone. It is easy to accidentally move the phone off the pad by sliding a book on the night table or by a careless cat stepping on the pad or the phone. Ideally, I would like the shape of the wireless pad to be a little tray with raised borders so the phone stays within the tray safely.
I am impressed with the wireless' pad speed of charging and would recommend it.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★