[Viktor's] laptop needed a new battery; he had the trade off between carrying around a cheap but heavy sealed lead acid (SLA) battery, or buying an expensive but light Li-Ion battery. Figuring his old laptop was pretty heavy already, and having an unused SLA available, re-purposing it for his laptop wouldn’t be too much of a hassle. Using a boost converter he built out of a custom dip MAX668, he is able to output the necessary 5 amps required. An MC 34161 voltage monitor chip is planned for future revisions, but he’s currently running it just fine. Check out…

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LONDON: The United States was dealt a blow by the financial crisis but remains the world’s main power and can maintain its influence if it works with allies to achieve its goals, a study said on Tuesday. A report from the International Institute for Strategic Studies (IISS) think tank in London said that despite taking an economic hit, the downturn has highlighted how other states look to Washington for their lead. “The vivid message of the financial crisis… was that America continued to be of vital importance to other countries, including its putative rivals as pre-eminent powers,” the IISS…

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Want 67 Terabytes of local storage? That’ll be $7,867 but only if you build it yourself. Blackblaze sells online storage, but when setting up their company they found the only economical way was to build their own storage pods. Lucky for us they followed the lead of other companies and decided to share how they built their own storage farm using some custom, some consumer, and some open source components.
Each pod is a standalone HTTPS-connected storage unit with 45 hard drives in it. Nine SATA port expanders connect to 4 SATA controller cards on the mainboard. The system…

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While many businesses on Facebook are looking to get new page fans, many want instant results, which is why Facebook is now offering advertisers direct response ads. Last week Matt Zarzecki posted screenshots of a new Chick-fil-A homepage advertisement. After click the ad, users are encouraged to enter their address in order to get a coupon for a free Chicken Biscuit. Until now Facebook has refrained from offering any form of direct response ads but as of last week, that all has changed.

This is a pretty significant offering for Facebook as it shifts from the traditional Facebook sales funnel,…

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Lead management is one of the most important and time-consuming activities for companies. Despite the issues many firms have in its implementation, good lead management can act as a significant competitive advantage. This has particular significance for lending companies where an experienced mortgage agent can make good use of mortgage lead management tools in the following ways:
1. Increased conversion rates: Mortgage branches obtain mortgage leads from various sources such as mortgage lead websites and marketing companies. These leads are pre-sorted to include prospects that possess the right credentials and are more likely to buy a home. Following up on…

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Over the past few years Facebook has grown from a tool for connecting with others to a tool for sharing information with others. This new model is helping Facebook to collect more relevant information about consumers and is slowly changing the advertising world forever. We are in the midst of a shift toward monitoring our digital footprints and Facebook is currently taking the lead in what appears to be a battle for our commercial identities.

The Death Of Cookie Advertising
As the internet emerged, numerous technologies began to sprout up which provided marketers with the ability to group, monitor, and…

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A few weeks ago we held a preorder for the Bus Pirate universal serial interface tool. We split the preorder into two parts due to a shortage of PIC 24FJ64GA002-I/SO chips. The first preorder is arriving worldwide now, the second preorder has a longer lead time. Here’s everything we currently know about preorder 2, it’s subject to change, but we wanted to keep you up to date.
Preorder 2 contains orders for 563 Bus Pirates. Seeed Studio noticed an error in our quality control testing routine that misclassified about 50 preorder 1 Bus Pirates as defective. We updated the…

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Hack a Day favorite [Mikey Sklar] is back with a new project. Mini-D is a battery desulfator. If a 12V lead-acid battery sits with a voltage below 12.3V, sulfur crystals will begin to form on the lead plates. This crystal growth increases the internal resistance and eventually makes the battery unusable. A battery desulfator sends high frequency pulses through the battery to create a resonance that will break up the crystals. On a 60lb automotive battery, it will take approximately three weeks to completely desulfate. You can find schematics plus a dozen lines of code for the ATmega169 on…

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