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schulzmc · 08-28-2010, 01:52 PM

Here are some facts about the battery drain from the cover. From the "Blog Kindle" review:

Buy doing some simple math we can calculate average current drains of about 2.4 mA with wireless completely off, 3.5 mA when running on WiFi and 7.3 mA when running on 3G + WiFi.

Many people are wondering about what would cover with built-in LED light do to the battery life. Luckily I had a digital multimeter and a piece of wire handy so I was able to measure the drain current of the cover as well. It turned out to be 76.6 milliamperes. This by an order a magnitude larger than what Kindle 3 consumes even with wireless on. So with LED light on battery life is going to be between 20.85 and 22.15 hours of constant reading. This is about twice as long as 10 hour battery life of Apple iPad.

08-28-2010, 01:52 PM	#29
schulzmc Zealot Posts: 108 Karma: 112 Join Date: Nov 2007 Device: Kindle	Here are some facts about the battery drain from the cover. From the "Blog Kindle" review: Buy doing some simple math we can calculate average current drains of about 2.4 mA with wireless completely off, 3.5 mA when running on WiFi and 7.3 mA when running on 3G + WiFi. Many people are wondering about what would cover with built-in LED light do to the battery life. Luckily I had a digital multimeter and a piece of wire handy so I was able to measure the drain current of the cover as well. It turned out to be 76.6 milliamperes. This by an order a magnitude larger than what Kindle 3 consumes even with wireless on. So with LED light on battery life is going to be between 20.85 and 22.15 hours of constant reading. This is about twice as long as 10 hour battery life of Apple iPad.