Gomadic Portable AA Battery Pack for the Garmin Nuvi 660 - Powered by 4 X AA Batteries to provide Em

• Built using the unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping physical connectors.
• Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Garmin Nuvi 660 specific), TipExchange enabled (Yes)
• Integrated circuitry regulates output voltage specific to the Garmin Nuvi 660. Advanced logic maximizes overall charger efficiency.
• Easy to operate. Simply insert batteries, toggle on/off switch and your Garmin Nuvi 660 will start to charge.
• Internal circuit designed to protect your Garmin Nuvi 660 from power surges, overcharging and short circuiting.

Have gone for walks in large cities with this unit connected to my Garmin Nuvi 660. Got extra 4-6 hrs of operating time with my unit when not plugged in. Works very well and worth my purchase of it. Do not worry anymore when I am out and about for long times when not connected to a charging unit.

Buy Gomadic Portable AA Battery Pack for the Garmin Nuvi 660 - Powered by 4 X AA Batteries to provide Em Now

This power adapter for the Garmin Nuvi 660 GPS fits well into the GPS itself via the USB port (not in the dashboard mount stand, as does Garmin's own car power supply). This adapter cord is able to supply power to different types of devices, because it has interchangeable "power tips" that plug into it, increasing its versatility (it comes with one tip & others are available at extra charge). It has an on/off switch to conserve the batteries when not in use. It's a great idea for people who want to use the GPS for walking or bicycling. It's also great as an emergency power back-up in case your car adapter receptacle or power cord malfunctions. My only complaint so far is that it's a bit flimsy. The plastic is thin & bends easily, & one battery spring (of the four) causes the battery to pop up (closing the case presses the battery into place). I've used it only a couple of times so far, so I can't comment on its durability, but for the price, it should be made of sturdier plastic.

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Wonderful seller. Never had a more positive buying experience in my life! I bought an Emergency Battery Extender for the Amazon Kindle 1. The very next day, my Kindle broke (got stepped on). I immediately went to Amazon's website and bought the latest Kindle 3.

So here I was, with a $20.00 (+s&h!) Gomadic Charger in the mail for a Kindle 1 that no longer existed, and an incompatible (charging adapter wise) Kindle 3 on its way!

I immediately emailed Gomadic Customer Support, explaining the problem and asking how it can be remedied, because otherwise I'd reluctantly have to return the product (they have unconditional 30-day return policy).

To my agreeable surprise, they answered my email within a couple of hours of my sending it to them, and informed me they were sorry to hear of my broken Kindle, and that they had already mailed me the appropriate adapter so I could charge my new Kindle 3, all free of charge.

If that ain't the Rolls-Royce of customer support, I don't know what is.