Frequently Bought Together
Technical Details
- Two Powered USB Ports (2.1A & 1A)
- 2.1 Amp USB port has the power to charge your iPhone, iPad or iPad Mini
- 1 Amp USB port charges your iPhone 5/4/4S/3G/3 (must use own cable for iPhone 5)
- Detachable 30-Pin to USB cable charges & Syncs from your computer or charges from your car
- 2.1A Port provides Fast Charge to iPhones (iPhone 5 cable not provided)
Product Details
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Product Description
From the Manufacturer
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 iPad, while the 1 Amp port simultaneously charges your iPhone, iPod or other mobile devices.
Accessories as sleek as your iPad | |||
| Power Solutions |
Kensington PowerBack Battery Case for iPad with Kickstand and Dock |
Kensington PowerBolt Duo Car Charger, iPhone 4 Compatible |
Kensington PowerBolt Micro Car Charger for iPad, iPhone and iPod, including iPhone 4 |
| Power Type | Portable Battery | Car Outlet (CLA) | Car Outlet (CLA) |
| Power Charge | 4400mA Hours (2.1A charge) | 2.1A + 1 Amp | 2.1Amp Charge |
| User Environment | Anywhere | Car | Car |
| Features | 5 extra hours of power, plus protection and a convenient stand | Charge two devices simultaneously with two charging ports: 2.1 Amp port and 1 Amp port | 2.1 Amps, ultra-compact car charger |
Product Description
Charge two devices while you drive. 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 iPad, while the 1 Amp port simultaneously charges your iPhone, iPod or other mobile devices. Includes LED power indicator. Compatible with most vehicle power ports. iPhone and iPod touch models require iPhone OS 3.0 or later.
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Customer Reviews
Most Helpful Customer Reviews
382 of 390 people found the following review helpful
By wizozzie
Amazon Verified Purchase
This is a great dual port car charger.
Unlike a lot of dual USB chargers out there, it puts out a good 5v 2A current out of the top jack, and an above average 5v 1A current out of the bottom jack.
If you use a car dock (especially the Google/HTC Nexus One Car Dock) you can charge your phone and run your dock with a regular high quality Micro USB 2 cable. This saves a lot of headache if you are using a single Car DC jack for multiple devices. So, you can run a GPS Android Phone Dock, along with a standard iPod/iPhone USB 2 cable with no extra adapters or dongles. Mega space savings and clutter prevention.
The charger juts out about 1 1/2 inches from your standard sized DC jack surface. I can see why they needed to do this versus making it more flush to the car panel. The thing gets warm with full load and needs the extra space. I believe they made the Powerbolt Duo as small as they could for the price.
Speaking of price, this adapter uses high quality plastics and seems more expensive than its MSRP price. Although the metal contact pieces are not of a high conductivity metal, I expect that it would not corrode even with the occasional car style beverage spills and drips. The 30-pin Dock cable that comes with the unit is the standard Kensington iPod cable quality. The cable itself is flimsier, but it's reinforced where it counts. Apple cables usually become separated where the cable jacket meets the connector. The included Kensington cable will probably last a few months longer with heavy use because of its reinforced areas.
Here are my experiences:
2A Jack:
Fast Charge Barnes & Noble Nook
Fast Charge Nexus One (and probably all HTC devices)
Fast Charge and safely run Nexus One Car Dock using standard HTC or other premium Micro USB 2 cable
Fast Charge iPhone 4
Fast Charge iPad
Standard Charge iPhone/iPod (all)
1A Jack
Standard charge all devices, but not enough current to fast charge or run dock + phone combo by itself.
The only way this could be better if it were smaller, and both ports were 2A.
I highly recommend this adapter to all roadwarriors and mobile device users!
* UPDATE August 2011:
I am updating this review to give you an idea of the adapter longevity. I originally wrote this review in late 2010. It is now late-mid 2011 and the adapter is still running well. It has survived a soda spill with subsequent alcohol bath to clean it.
The Kensington 30-pin dock that I used it with has continued to serve its purpose well, unlike it's mate, an OEM (you know the fruit) cable that broke within 3 months.
I reiterate my positive review and I highly suggest purchasing this adapter.
New items tested working well with Adapter:
-Motorola Atrix Car Dock (2.1A & 1A)
-HP TouchPad (2.1A & 1A)
** UPDATE May 26 2012:
I am updating yet again to give you an idea of extreme longevity. I am still using the same adapter, and no faults yet.
I again reiterate my positive review and I have bought several of these adapters for friends and family. I think the only thing that it could do better is short the USB pins to simulate AC power.
New items tested working well with this adapter (works equally on both ports unless otherwise listed):
- Samsung Galaxy Nexus (GSM)
- Samsung Galaxy Nexus Car Dock (the one with the powered pins, works best on 2.1A)
- Light and Motion Solite 150
- "the New iPad" (fast charges on 2.1A)
- Nook SimpleTouch
- Nook Glowlight
- Nook Tablet
- Samsung Galaxy Tab 8.9
Unlike a lot of dual USB chargers out there, it puts out a good 5v 2A current out of the top jack, and an above average 5v 1A current out of the bottom jack.
If you use a car dock (especially the Google/HTC Nexus One Car Dock) you can charge your phone and run your dock with a regular high quality Micro USB 2 cable. This saves a lot of headache if you are using a single Car DC jack for multiple devices. So, you can run a GPS Android Phone Dock, along with a standard iPod/iPhone USB 2 cable with no extra adapters or dongles. Mega space savings and clutter prevention.
The charger juts out about 1 1/2 inches from your standard sized DC jack surface. I can see why they needed to do this versus making it more flush to the car panel. The thing gets warm with full load and needs the extra space. I believe they made the Powerbolt Duo as small as they could for the price.
Speaking of price, this adapter uses high quality plastics and seems more expensive than its MSRP price. Although the metal contact pieces are not of a high conductivity metal, I expect that it would not corrode even with the occasional car style beverage spills and drips. The 30-pin Dock cable that comes with the unit is the standard Kensington iPod cable quality. The cable itself is flimsier, but it's reinforced where it counts. Apple cables usually become separated where the cable jacket meets the connector. The included Kensington cable will probably last a few months longer with heavy use because of its reinforced areas.
Here are my experiences:
2A Jack:
Fast Charge Barnes & Noble Nook
Fast Charge Nexus One (and probably all HTC devices)
Fast Charge and safely run Nexus One Car Dock using standard HTC or other premium Micro USB 2 cable
Fast Charge iPhone 4
Fast Charge iPad
Standard Charge iPhone/iPod (all)
1A Jack
Standard charge all devices, but not enough current to fast charge or run dock + phone combo by itself.
The only way this could be better if it were smaller, and both ports were 2A.
I highly recommend this adapter to all roadwarriors and mobile device users!
* UPDATE August 2011:
I am updating this review to give you an idea of the adapter longevity. I originally wrote this review in late 2010. It is now late-mid 2011 and the adapter is still running well. It has survived a soda spill with subsequent alcohol bath to clean it.
The Kensington 30-pin dock that I used it with has continued to serve its purpose well, unlike it's mate, an OEM (you know the fruit) cable that broke within 3 months.
I reiterate my positive review and I highly suggest purchasing this adapter.
New items tested working well with Adapter:
-Motorola Atrix Car Dock (2.1A & 1A)
-HP TouchPad (2.1A & 1A)
** UPDATE May 26 2012:
I am updating yet again to give you an idea of extreme longevity. I am still using the same adapter, and no faults yet.
I again reiterate my positive review and I have bought several of these adapters for friends and family. I think the only thing that it could do better is short the USB pins to simulate AC power.
New items tested working well with this adapter (works equally on both ports unless otherwise listed):
- Samsung Galaxy Nexus (GSM)
- Samsung Galaxy Nexus Car Dock (the one with the powered pins, works best on 2.1A)
- Light and Motion Solite 150
- "the New iPad" (fast charges on 2.1A)
- Nook SimpleTouch
- Nook Glowlight
- Nook Tablet
- Samsung Galaxy Tab 8.9
134 of 146 people found the following review helpful
This charger is specifically for what it says in the title - iPhone 4, iPad 1 and 2.
With any other USB device you will get a 0.5A max current on both ports.
I bought this one for my Android phone thinking that USB charging specs are all standard. I was wrong...
From a review on another site:
"The 2.1A port implements *apple's* proprietary spec for high current charging which is necessary for that iPad, but the 1A port does not
implement the USB standard for high current charging above 500ma for smartphones and other devices. It may be rated at 1A on that second port but the required connection between pins 2 & 3 that tells your smartphone it can use >500ma is missing."
UPDATE 2011.12.06
-----------------
I finally found a charger that will provide 2x1A for my phones.
[...]
There is a very useful comment on this item
[...]
(Due to censorship - see comments for details)
The one I've got had two pins in the middle soldered on one port but not the other. This way the soldered one was treated by the phone as an AC adapter, the other one as a USB port.
Soldering the other one made it look like an AC adapter as well. Now I have a fully functional 2x1A car changer :D
I believe the same applies to the "Kensington K33497US PowerBolt Duo Car Charger" - it simply has both ports not soldered and treated as USB devices by phones. And only Idevices can actually "talk to it" and figure out the proper current.
With any other USB device you will get a 0.5A max current on both ports.
I bought this one for my Android phone thinking that USB charging specs are all standard. I was wrong...
From a review on another site:
"The 2.1A port implements *apple's* proprietary spec for high current charging which is necessary for that iPad, but the 1A port does not
implement the USB standard for high current charging above 500ma for smartphones and other devices. It may be rated at 1A on that second port but the required connection between pins 2 & 3 that tells your smartphone it can use >500ma is missing."
UPDATE 2011.12.06
-----------------
I finally found a charger that will provide 2x1A for my phones.
[...]
There is a very useful comment on this item
[...]
(Due to censorship - see comments for details)
The one I've got had two pins in the middle soldered on one port but not the other. This way the soldered one was treated by the phone as an AC adapter, the other one as a USB port.
Soldering the other one made it look like an AC adapter as well. Now I have a fully functional 2x1A car changer :D
I believe the same applies to the "Kensington K33497US PowerBolt Duo Car Charger" - it simply has both ports not soldered and treated as USB devices by phones. And only Idevices can actually "talk to it" and figure out the proper current.
86 of 92 people found the following review helpful
By Paul Hughes
Amazon Verified Purchase
I second the other five-star reviews. This device outputs the power it states from both ports, and, consequently, can charge anything up to and including the iPad and iPad 2. It also runs cool even under load; it's a very well-engineered piece of gear.
Critically for Ford owners and other car owners whose cigarette lighter jacks are powered even when the ignition is off, this device has VERY low standby power draw. While this is not listed in the specs on the box, I asked Kensington tech support for the draw when the charger is plugged in but nothing is charging from either of the USB ports. The response: "We are sorry for the delay in the responce. We would like to inform you that the product(K33497US) draws approxmitely 5mA in stand by mode."
(I had another iPad charger that would drain my car battery in a few days when left plugged in but with nothing charging. The Kensington seems not to have the same problem.)
In short, of all the high-powered car chargers out there for iPads and similar devices, this is the one to get.
Critically for Ford owners and other car owners whose cigarette lighter jacks are powered even when the ignition is off, this device has VERY low standby power draw. While this is not listed in the specs on the box, I asked Kensington tech support for the draw when the charger is plugged in but nothing is charging from either of the USB ports. The response: "We are sorry for the delay in the responce. We would like to inform you that the product(K33497US) draws approxmitely 5mA in stand by mode."
(I had another iPad charger that would drain my car battery in a few days when left plugged in but with nothing charging. The Kensington seems not to have the same problem.)
In short, of all the high-powered car chargers out there for iPads and similar devices, this is the one to get.
Most Recent Customer Reviews
5.0 out of 5 stars
Love it!
I will be sure to tell everyone about this product! Great for hotel/motel travel and also offered at such a great price!
Published 11 hours ago by C. M. Valley
5.0 out of 5 stars
WORKS GREAT
IT DOES EVERYTHING WE NEED IT TO DO AND SINCE WE BOTH HAVE I PHONES NO MORE WAITING TO CHARGE. GREAT PRODUCT.
Published 18 hours ago by vince
5.0 out of 5 stars
It's as good as i expected to.
2nd charger is waiting for my iPad. Fabricated with durable materials, and each end of cable have a plastic ferrule to add durability of that critical area. Very pleased.
Published 23 hours ago by Hector Bruguera
1.0 out of 5 stars
Stopped working after 60 days
I have purchased a lot of Kensington products over the years and have always thought that they made well built products. After ACCO bought them I thought quality would go down. Read more
Published 1 day ago by Charles W Witt
1.0 out of 5 stars
Garbage
This is the second one I bought in a month. The first one died in a week. The second one lasted 3x as long! Ugh. Total trash.
Published 2 days ago by James S Quinn
4.0 out of 5 stars
Good Thingy
Charger works fine although it is not any faster than my old cheaper one. The build quality is better tho. One criticism is that the cord is too long. Read more
Published 2 days ago by E. E. Yates
5.0 out of 5 stars
as expected
This product functions just fine so far. I mean, it is just a car charger. I am not expecting it to make my dinner or now my lawn. I mean it either works or it doesn't.
Published 2 days ago by Karl Christiansen
5.0 out of 5 stars
This works well
It's very convenient having a charger for our USB equipment while traveling in the car. Works well and has a pilot light.
Published 3 days ago by Stephen D. Goodrick
5.0 out of 5 stars
good
I am a buyer from China, my English is very poor, Reviews goods for the first time, do not know what to write, but I really like this product.
Published 3 days ago by JIANGJI HUANG
4.0 out of 5 stars
3rd purchase of same charger
I just ordered my third charger. We almost always need 2 charging ports and the different aperage supports multiple devices. Read more
Published 3 days ago by D. M. Edinger
