Batteries and Chargers

how to test the power output of a usb cable?

I have a usb powered cup warmer. It has a car adaptor. I would like to know if its possible to use it to charge my cellphone in the car, instead of buying a car adaptor.

The max power you can draw from a USB port is 2.5W (500 mA at 5V)

Apple iPad: Using a Powered USB Hub

Mr. Coffee MWBLK Mug Warmer $7.99 Trust Mr. Coffee to create this unique product. It’s like a special dock for your mug. Place you mug on this electric base and it’ll keep any beverage warm. From coffees, teas, chocolates, and toddies, use this mug warmer to help keep beverages warm – as you like it. It’s perfect for any fan of warm beverages. This Mug Warmer also makes a great gift to an appreciative friend or colleague….

BESTEK 75W car power inverter car inverter dc inverter dc ac inverter 12v to 120v power inverter for car dc to ac inverter 12v to 110v converter usb car charger for car adapter samsung car charger pda car charger lg car charger htc car charger sony mp3 mp4 blackberry nokia gps motorola car charger ipad car charger iphone car charger with ac outlet laptop charger for car adapter notebook adapter notebook charger laptop adapter (with DC5V ,1A rated, 2.1A Max usb port, flexible car cigarette lighter) MRI711C-3 $10.99 Before reaching you,we test every item in 7 aspects during manufacturing,and aging EVERY item fullloaded for at least continuously 4hrs.We guarantee: competitive prices,first-rate quality,within 1 busniess day shipping and excellent service! We ship out all the orders placed by 3:30P.M PST the same busniess day!!!…

Wagan 4-Way 12V Automotive Socket Extender $8.99 The Wagan 9139 4-Way Socket Expands one cigarette lighter socket to power 4 electronic items. It plugs into lighter socket….

The Last Dragon $4.03 Compact Disc…

Power of Love $1.84 …

USB Data Cable + Rapid Car Charger + Home Travel Charger for Sprint, Alltel HTC Touch Pro $2.30 USB Data Cable + Rapid Car Charger + Home Travel Charger for Sprint, Alltel HTC Touch Pro…

Belkin Mini Surge Protector/Dual USB Charger Protect your electronic devices wile traveling….

Belkin 6-Outlet Home/Office Surge Protector $1.95 Belkin Home/Office 6-Outlets Surge Suppressor BE106000-2.5 Surge Suppressors…

Belkin Conserve Socket Energy Saving Outlet $0.01 …

Tascam: 2488 / MKII / Neo Tutorial $26.95 The Tascam 2488 / MKII / Neo DVD Tutorial is designed to be more than just a complete guide to using the 2488, MKII and Neo versions: it teaches basic recording techniques to musicians getting their first start in recording. It begins with a section called “Recording School” that teaches beginners the basics about microphones, multitrack recording and mixing. It goes on for the next 90 minutes …

Apple iPod/ iPhone USB Power Adapter $8.49 USB power adapter charges your iPhone or iPod when it’s not connected to a computerApple cell phone charger features a new, ultra-compact designCell phone accessory for iPhone and iPod models with a dock connector

Iomega 31653 250MB External USB-Powered Slim ZIP Drive $39.99 The solution was so simple and so needed when the 100MB Zip drive first came on the scene, that it’s no wonder the Zip drive has earned a rock-solid reputation in the PC world as the preferred way to save, backup and collect your important files.

Samsung Micro USB Power Pack $12.49 Stay organized with this USB power pack. This set includes 5 pieces.

Zenex SP5431 2.0 USB Red Powered Speakers $20.99 These USB powered speakers have a rich rubber feel and touch. This speakers are equipped with an electronic volume control and are compatible with most electronic devices with a 3.5mm audio jack.

Computer LED Reading Light USB Powered (Set of 2) $11.99 You’ll never be caught in the dark again with this remarkable device. This fantastic reading light will illuminate your work and reading wherever you go!

AVer AVerVision U10 USB Powered Document Camera $166.99 AVer AVerVision U10 USB Powered Document Camera

Laptop USB Powered LED Light and Fan $12.49 Take your laptop anywhere and bring light and a gentle breeze with you with this astounding USB computer fan with LED light. Powered through your computer this light and fan combo will let you work comfortably wherever you want.

Impecca USB 210 10-watt Dual USB Power Adapter $19.99 Get more out of your electronics with this Impecca USB 10-watt dual USB power adapter. This dual-charge USB adapter can charge your PC tablet or two other devices simultaneously.

KINYO UC-117 2.0 USB Powered Speaker System $16.99 USB powered speaker systemStandard 3.5mm stereo input connectionPerfect for your PC or Mac systems

Seven-port High Speed USB 2.0 Hub with Power Supply $43.49 Keep your electronics connected with a high speed USB 2.0 hub Computer accessory features power supplyHub adds seven USB ports to your computer

iGo PM00011-0001 Smart Tower 8-Outlets Surge Suppressor $45.99 iGo PM00011-0001 Surge Suppressor

Startech.com 2x 12V 1x 24V PCI Powered USB Card $93.49 Startech.com 2x 12V 1x 24V PCI Powered USB Card

BUSlink Disk-On-The-Go 80G Pocket Hard Drive $54.99 BUSlink Disk-On-The-Go Pocket Hard Drive

High Power Slim AC Wall Plug to 2 x 5V USB Adapter $11.49 This AC power adapter allows you to easily adapt your USB charging cable to work from any AC outlet. The high power dual output design will charge two high power electronics devices such as GPS, smart phone or multimedia player at the same time.

Tripp Lite OMNIVS800 800VA UPS $139.99 Tripp Lite OMNIVS800 800VA UPS

Polycom CX3000 IP Conference Station $679.99 Polycom CX3000 IP Conference Station

CyberPower Smart App AVR OP850 850VA UPS $136.64 CyberPower Office Tower UPS 850VA

Citizen CT-S310 Receipt Printer $199.99 Citizen CT-S310 POS Thermal Receipt Printer

Kensington 33402 90-Watt AC Adapter with USB Power Port (Refurbished) $44.99 Reliable power for your notebook and mobile devices. Not only does the Kensington Wall Notebook K33402US AC Adapter with USB Power Port work with most notebooks, it even powers mobile devices such as cell phones, smart phone, PDA, iPod, MP3 and more.

StarTech.com 12 ft 12V to M Barrel+USB Powered USB Cable $22.84 12 ft 12V to M Barrel+USB Powered USB Cable

Car Charger with USB Port for iPod / iPhone $12.49 Enhance your cell phone with a USB port for iPodCell phone accessory charges your USB iPod through the car chargerTelephone accessory is great for anyone on-the-go

Motorola P513 microUSB Car Charger $14.49 Motorola P513 microUSB Car Charger

Cables To Go AC Power Adapter for Digital Audio Player $15.99 Cables To Go AC Power Adapter for Digital Audio Player

StarTech.com 24V to 1×8 Powered USB Cable $26.99 StarTech.com 24V to 1×8 Powered USB Cable

StarTech.com 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Pow $47.49 StarTech.com 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power