Griffin PowerBlock Dual Universal Charger for MP3 Players and USB Devices (Black)
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- Charge MP3 players and other USB devices, two at a time
- Delivers safe charging levels for most USB devices from almost any wall outlet
- SmartFuse circuit-breaker protection means no fuses to replace
- Compact for travel with fold-flat blades
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- Size (LWH): 5 inches, 1.38 inches, 7.09 inches
Top Customer Reviews
I connected both the iPad and speakers to this charger at the same time and they both worked fine. I watched a video on the iPad while listening to the speakers at a high volume to determine if the charger can handle it. It not only handled the load without any problems, but it also charged up my iPad to a full charge.
I discovered that there are two versions of this PowerBlock Dual Universal Charger. This one provides 1 amp per USB port and the other one produces only 500 ma per USB port. The good one advertises the 1 amp per USB port capability, while the other one does not. Also, this one shows the 1 amp per USB port on its packaging and on the unit itself. By all means get this better one, not the less capable one, as it can handle more devices.
I travel a lot and needed a small lightweight USB charger that can power my USB speakers, which saves weight and space. This can help avoid paying overweight charges at the airport which can be quite expensive (some portable speakers have a heavy power supply or built-in rechargeble battery that you must carry around). Also, I like the fact it can handle an input of 100v-240v so it can be used in any country.
Update: My daughter liked this charger so well that she got one for herself to power her iPhone and HP USB Mini Speakers. These mini speakers produce great sound from the iPhone, and this charger will power the mini speakers and charge the iPhone at the same time.Read more ›
Upon closer examination of the powerblock itself, it states 1 amp total. So clearly there is a problem with the maufacturer. Their packaging says one thing, while the block says another. So I can't blame the seller since they sold the correct item. So be wary and let's hope you are not the unlucky one that has the right package and wrong block.
I own alot of griffin products and swore by them, but this is disappointing.
The problem surfaced when I took it to work with me. The whole reason I bought this was that I travel for work and have been recently assigned a Blackberry Curve 9330 (750mA stock charger) and I want to charge them both bedside in the hotel. I plugged my phones in, the Android LED lit up like it was charging, the BB clock/bedside mode activated like it normally does when charging and I went to bed. When I got up, the BB was unresponsive. Since this was the only charger I brought with my, I couldn't troubleshoot much except to unplug, replug it (didn't work), unplug/replug the PowerBlock (didn't work), and try charging the BB through my computer's sleep 'n charge USB (worked!)
Later I tested things out and came up with the following:
If I plug my Android in first and then my BB, then:
1) *My Android pops up a USB selection like it has been plugged into a computer asking if I want to tether, charge only, or disk drive.
2) The BB goes into 'bedside mode' like it's charging even though it is not.
3) If I back out of bedside mode I may or may not get a popup on my BB saying *"The charging source connected to your BB device cannot charge..." and a subsequent *"Verify that your computer is not in standby, hibernate..." message.Read more ›
Most Recent Customer Reviews
This is a great charger and I highly recommend it. This is the second Griffin Dual Charger that I have bought. Read morePublished 1 day ago by Leah
This charger is one of the best I've ever owned. I bought my own back in 2012 and it barely stopped working now in 2016. Read morePublished 6 months ago by Abe C.
It worked perfectly for a little over a year, I loved having it by my nightstand so my iPhone and my Kindle could both be charging if needed. Suddenly it stopped working. Read morePublished 6 months ago by Kati Steill
We have six of these so far, because everybody in our family likes using them so much. We are a family on the move going everywhere all the time and this is prefect for us.Published 6 months ago by G. Miller