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Hydro Powered Calculator

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Really?  We have a Hydro Powered Calculator now?  Holy hydrogen!  A single oxygen atom bonded with two hydrogen atoms equals my favorite drink, or so I think thats how it works.  So yeah, this thing is too cool for school or work, you just fill up the three water powered batteries, plug them in and youre good to go! 

The water-powered batteries consists of two electrodes made of special alloys, which, when immersed in water, produce electricity through a chemical reaction.  Simply refill the battery as the water evaporates, typically every two to three months.  Not only is this eco-friendly, its providing free energy.  Well, not enough free energy to power your computer or drive you home, but its still impressive!

Our Hydro Powered Calculator is made of clear plastic with geek-chic green buttons so you can see the system board and the process as its happening!

Measures 2 inches tall x 5.25 inches long x 3 inches wide.

Shipping & Returns

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.