Griffin Powerjolt Dual Universal USB Micro Colors May Vary

by Griffin Technology

Product Features

• Charge your mobile phone, GPS and more from your 12V accessory outlet
• Provides a second outlet to use for other devices while charging
• Built-in SmartFuse for circuit protection
• Input voltage range - 12-16V DC at 2A, 5 watts per port (5 volts @ 1 amp)

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Product Description

Charge your mobile phone, GPS and more from your 12V accessory outlet

Most Helpful Customer Reviews

462 of 484 people found the following review helpful

2.0 out of 5 stars Improperly wired but hackable June 20, 2011

By Aaron R. Deutsch

Like many others my HTC Evo first saw this charger as a USB charger and would not draw enough power to maintain a charge while GPS navigating and streaming music at the same time.

Following the USB charger spec I cracked open the case and soldered the two middle (USB data) pins together on both sides of the unit.

The disassembly of the case damaged it slightly and this obviously voided my warranty, but the results are as good as one could hope for. In our Nissan Altima the modded version of this adapter was able to positively charge both the Evo under full load as well as an iPad 2 at the same time.

I've posted a photo of the pins to solder for reference for those who are brave and own a soldering iron.

275 of 289 people found the following review helpful

4.0 out of 5 stars Careful - This is not a 2 Amp charger - won't work with Ipad March 30, 2011

By MAJ Shakespeare

Amazon Verified Purchase

I purchased this looking for a smaller charger and I love Griffin products. The description for this product says that it is "2 A" and can charge a variety of electronic devices which connect to a USB charger. The packaging more clearly describes the charger as having two USB ports which produce 1 A each. It appears that the description is adding the two together which is not helpful. Ipods and Iphones only need 1A or 1 amp chargers while the Ipad needs a 2A or 2 amp charger. Two 1 amp charging ports does not equal one 2 amp charging port.

Other than that - a great product.

80 of 84 people found the following review helpful

5.0 out of 5 stars Better than the item it replaces! Great form factor and plenty of power! November 18, 2010

By jeep_n_co

I purchased this item to replace what looks like an older (and unsatisfactory) version of this product: Griffin Technology Powerjolt Dual Universal (Black). This new version has many benefits over the old... It does not work it's way out of the power socket like the old version, it is smaller, and it puts out more power (plenty to charge my DroidX which requires 850mA, this puts out 1A per socket).

I have been using it for a couple of months so far, and it's performed flawlessly.

EDIT 10/4/2012: I want to point out that I purchased a retail version from a big-box retailer, my review reflects my experience with the genuine product, and am not endorsing a specific seller here on Amazon. Looking over some of the recent reviews, there appears to be recent reports of counterfeit products being shipped by Amazon sellers! That is disappointing, please take this into consideration when purchasing!

FWIW, my original review is roughly two years old and the genuine product is still performing like a champ. Some other thoughts, my DroidX and X2 both charged at full power off of this, but my Galaxy Nexus dropped back into 500Ma range. I changed over to a Charge-Only USB cable (an alternative to cracking open the case and soldering the terminals) and charging resumed to a full 1000Ma of power.