Product Details
- Product Dimensions: 7 x 4.6 x 0.5 inches
- Shipping Weight: 0.8 ounces (View shipping rates and policies)
- Shipping: Currently, item can be shipped only within the U.S.
- ASIN: B005Z6FL80
- Item model number: K39523US
By : Kensington
Price : $29.99

Product Description
Charge two devices simultaneously with the PowerBolt Duo from Kensington. It features two charging ports: the powerful 2.1 Amp port has the juice you need to charge your Kindle Fire, while the 1 Amp port simultaneously charges your other mobile devices.
Product Features
- Two USB power ports
- 2.1 Amp USB port has the power to charge your Kindle Fire
- 1 Amp USB port charges your smarthphone or other device
- Included micro-USB to USB cable lets you charge your Kindle Fire
- LED power indicator
Kindle Fire PowerBolt Duo USB Car Charger with USB Cable by Kensington
Customer Reviews
Kensington makes excellent products. This Powerbolt Duo car charger is no exception. This Kensington car charger is good for charging the Apple iPad and Amazon Kindle Fire, and it comes with a micro USB cable for the Fire, but it costs $30.
The Kindle Fire requires an electrical charging current of 1.8 A (1800 mA), so only chargers meeting current output of more than 1.8 A can charge it in reasonable amount of time. Many chargers on the market have output current of 2.1A. Make sure you see this specification on the product page. Kensington, Skiva, and Scosche all make car chargers that meet the 2.1 A requirement but are much more expensive.
The least expensive is by AmazonBasics, under $10.
AmazonBasics 2-Port USB Car Charger with 2.1 Amp Output (Black)
You also need a micro USB cable:
AmazonBasics USB Cable - 2.0 A Male to Micro B (6 Feet / 1.8 Meters), $6
This is the kind of cable (USB 2.0 on one end and micro USB on the other) that some reviewers were saying that Amazon should have included in the Fire box. It can be used for copying files from your computer to the Fire and vice versa.
This charger has two USB ports that share the 2100 mA output, so if you want fast charging, use just one port to charge the Fire/iPad, and leave the other not used by anything else.
This combo costs $16, about half the cost of the Kensignton.
I would only recommend the Kensington if you want to charge the Fire or iPad AND another USB device that consumes less than 1.0 A SIMULTANEOUSLY and don't want to sacrifice charging time. Physically, the Kensington is smaller and also well-made.
I was looking for options to charge my Kindle Fire on the go, and this seemed like it would do the job, nicely configured wth two USB ports, one for the 2.1 amp charging requirement for the Kindle, and a 1 amp port for my smartphone. It arrived quickly, but came packaged in a padded mailer with the actual product in a nondescript plastic bag. The charger does operate as described, however it is very cheaply made and the supplied adapter cord is not very flexible and a bit on the short side. It also doesn't look anything like the unit pictured on the product page, it has a different shape and profile than the one shown. For $30 I'm thinking I could have done a lot better. I may check out what they have at Radio Shack and return this. Not worth the money in my opinion. BTW, I looked into the Amazon Basics charger and adapter cord recommended by the other reviewer, but it appears larger and bulkier than the Kensington charger I purchased....a problem for me because it would protrude far enough to interfere with the shifter in my car. May work better for you, and it is half the price of this one.