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2-Port USB Home Travel Charger for Apple iPhone / iPod (Black) by GTMax
List Price: $14.99Our Price: $0.01You Save: $14.98 (100%)Availability: Usually ships in 1-2 business days Category: Network Media Player See more product details
Digital Photo Product DetailsManufacturer: GTMax Brand: GTMax Edition: Electronics Publisher: GTMax Studio: GTMax Music Label: GTMax Product features: - USB travel charger is lightweight and easy to carry while traveling.
- This adapter can charge 2 USB devices simultaneously
- LED light power indicator
Digital Cameras Photo Reviews of 2-Port USB Home Travel Charger for Apple iPhone / iPod (Black)Customer Review: USB Charger TechEval Summary: 5 Stars
Any time I purchase an item this inexpensive, I'm always apprehensive about connecting it to a considerably more expensive device and risk damaging the connected device.
Therefore I decided to evaluate this charger with a dummy-load. I measured the charging current draw of my old Sansa MP3 player, which was nominally 180ma. For USB, the charger should maintain nominal output voltage of 5VDC, under various loads. Here are the results of the evaluation.
Open-circuit (no load) output voltage: 5.15VDC
Output voltage with 10 ohm (10 watt) resistor: 4.83VDC (ripple less then 200mv, sawtooth waveform, 30KHz, nominal current draw 480ma).
I burned-in the device under continuous load for 24 hours; the re-measured output voltage showed no substantial change. Also, after the burn-in period, the 2.4 watt load draw did not result in a significant temperature rise felt in the charger itself.
Disclaimer: These results are for the single unit I evaluated, I make no claims that all, or any other chargers of this type will produce the same results. It's clear that I did not stress to unit to it's maximum stated capacity of 1000ma. Users should not assume that their USB devices will not exceed the current draw rating of the device, particularly when charging more then one device. I have done this evaluation for my own purposes; I have no connection with any of the sellers, or the manufacturer of this device.
UPDATE: I used the charger to successfully recharge the Sansa MP3 player without issue. Of course, at this point I can not speak to reliability over time, as I just started using the device. As a side point, the power pins of the unit I have appear to be very firmly attached; again this is the only unit I have at this point (three more on order), so I can not speak to quality-control as regards this USB charge in general. Reminder, care should be taken not to exceed the current ratings of the device, as this could result in over-heating the charger, which could in turn result in loosening of the power pins.
Description of 2-Port USB Home Travel Charger for Apple iPhone / iPod (Black)For the professional executive on the go, this charger is a must! The USB travel charger is lightweight and easy to carry while traveling. This adapter can charge 2 USB devices simultaneously. - Brand new GTMax USB Chargery
- Input: 100V - 240V (U.S. & World Standard)
- LED light power indicator.
- Best replacement for original MP3 player travel charger.
- Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver mode to prevent overcharging and short circuit.
- UPC Code:088515701803
- You must have a USB charging cable (sold separately) in order to charge your MP3 player with this charger.
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