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  • NEEWER Portable AA Battery Powered Emergency Charger with Flashlight - Black - For Apple iPhone 4
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NEEWER Portable AA Battery Powered Emergency Charger with Flashlight - Black - For Apple iPhone 4

by Neewer

Price: $7.15 & FREE Shipping on orders over $35. Details
Only 16 left in stock.
Sold by Midgar's Best and Fulfilled by Amazon. Gift-wrap available.
  • For iPod, iPhone and any other devices that are charged through a USB cable.
  • Quick charge time! Slim and portable design.
  • Easy to use - Just plug and charge.
11 new from $2.16
$7.15 & FREE Shipping on orders over $35. Details Only 16 left in stock. Sold by Midgar's Best and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

NEEWER Portable AA Battery Powered Emergency Charger with Flashlight - Black - For Apple iPhone 4 + OEM PCD Universal Y Adapter USB Data Cable with Two Male and One Female Connector
Price for both: $12.05

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Technical Details


Product Details

  • Shipping Weight: 1.4 ounces (View shipping rates and policies)
  • ASIN: B003XTI5RK
  • Item model number: EMERGENCY USB CHARGER BLACK@@23
  • Average Customer Review: 2.7 out of 5 stars  See all reviews (161 customer reviews)
  • Amazon Best Sellers Rank: #41,350 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
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Product Description

AA Battery Powered. When your iPod or iPhone is low on battery, you can charge it quickly when not near a computer USB outlet. With this adapter, you could charge your iPod, iPhone or other handheld via AA batteries within the device. It's a great traveling partner and useful in emergency situations.

Customer Questions & Answers

Customer Reviews

This item does not charge your battery it drains it.
jamie
So, everything gets extremely hot, and you'll burn out a pair of AA batteries before it finishes charging your phone even once.
RC
I use Nimh rechargeable batteries, but in a real "emergency" it's easy to find regular AA batteries just about anywhere.
David C. Filmer

Most Helpful Customer Reviews

65 of 68 people found the following review helpful By Shiven4 on July 4, 2010
Verified Purchase
I don't review often, but I felt compelled to write a review for this because there weren't many and because this is an excellent device at a great deal. I bought this with the intention of using rechargeable AA batteries to recharge my iPod Touch 2G when away from other power sources. It works great for this.

After a little bit of testing, I found that this will consistently charge my iPod Touch from completely drained to 100% in about 3 hours from 2 fully charged AA rechargeable batteries. One full charge completely drains the AA batteries. It will get to 80% in about 1.5 hours. (I tested Energizer, Everlast, and Eneloop rechargeable batteries with this, and all produced about the same results). Interestingly, I also tested Rayovac AA alkaline batteries, which only produced a 45% charge before they were completely drained.

I also used this with an HTC Incredible, for which it produced about half a charge before the AA batteries were drained.

Overall, it works very well for what I bought it for, and at a very reasonable price for something like this.
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48 of 52 people found the following review helpful By David L on April 23, 2011
Pros: Cheap, provides consistent voltage, good current, and easy to use.
Cons: Cover very difficult to get off, LED is almost useless (super dim, although can be used as a battery life indicator), Switch can easily be turned on while in pockets, device does not handle high currents very well (creates noxious, burning plastic smell in charging currents >500mA), conversion is 5V is inefficient (loses much of the energy to heat).

Other thoughts: The D+ and D- on the USB port is shorted so that some devices (e.g. mobile phones) charges more quickly using higher currents than ordinary chargers. When the device is switched on, it provides a constant 4.98V on the USB port, even when the batteries themselves approach 1.0V. While the device is off, the voltage will slowly go down from 4.98V to the voltage of the installed batteries (possibly due to capacitance?).

Overall, this is a good device for its price. However, I would not really use it as your ordinary backup charger because it has a serious design flaw. Depending on what you are planning to charge using this device, it might work for you. However, as stated on the package itself, this device is only designed for an 500mA output. That being said, since D+/D- is shorted, many phones recognize this as an AC source and draws currents up to 1A. This is a huge problem since the internal circuits get so hot that it essentially melts something (plastic?) inside (you will soon notice a burning plastic smell if you plug this in a high current drawing device like an iPhone). Also with this great amount of heat generated, many of of battery's stored energy is lost to heat rather than charging your device (to be expected since you are upconverting ~2.5V to 5V).
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33 of 36 people found the following review helpful By Valery on September 26, 2011
I googled here when tried to find out why my charger (the same, but from another retailer) became burning hot when I tried to charge Samsung Galaxy S using AA NiMH batteries. Reviews here clearly show that this charges is recognized as a standalone dedicated power source, not a USB-compliant charger. 2 USB data pins are responsible for that - if they're shortened, the device sees this charger as the one capable of delivering up to 1.8 amps, which at 5 volts results in 9 Watts, and given that we use AAs it means that the current of more than 3 amps (closer to 4 in fact) may be drawn. 3..4 amps is way too much for the batteries and for the step-up converter making 5 volts out of 2x1.2, and that's why they (batteries and the circuit inside the charger) become really hot.

I modded the charger a little bit. Do on your own risk, no special skills required.

I just used tweezers to break away one of the data pins inside the USB port on this charger. If you look at the port, you'll see 4 pins. Two outer ones are power, two in the middle - data (no actual data of course in case of a charger). As I said, I broke off one of the data pins (first pry it up to release the outer end, than sway it from side to side until it breaks at the base). Then I carefully removed all bits and pieces from the port, made sure that under no circumstances the remaining stub will get in contact with the corresponding pin on the USB cable, and here we go: now it charges my Galaxy S all right, because the phone don't anymore think it's a powerful charger and don't try to draw higher current than allowed by USB specs (5V, 0.5A). Charger is lukewarm (just cool compared to how hot it was before). The phone says "USB connected" now when I connect the charger...
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7 of 7 people found the following review helpful By Bob Tomato on November 11, 2011
Verified Purchase
I previously reviewed this product 4 of 5 stars because it worked well after I removed one of the center pins to trick it to charge slower. This allowed it to charge my smart phone about half way on 2 rechargeable Eneloop batteries. I gave that one to a friend and bought another one. This time after removing a pin it got hotter than before and would charge a bit some of the time, but most of the time it would just get hot and my phone would not charge and eventually the charging light would flash. I've never seen my charging light flash before this. I never tried the 2nd one before removing the pin. The switch on the 2nd one I bought had a textured surface which makes me think it's a different design. Anyway the one that worked was bought October 2011 from seller ACC Stop. The one that didn't work was bought September 2012 from seller Tidbits and Pieces.
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