Posts tagged e1405

Dell Inspiron 640m 630m E1405 XPS M140 Laptop Battery 9-Cell


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When using a laptop as a desktop replacement the battery should not be left in for long periods of time. The laptop will over time discharge the dell e1405 battery. Remove the battery,making sure that it is charged to 50% and store it in a dry, warm place. Ensure that it is wrapped protectively and nothing will be dropped on it. The battery should be re-installed every 3-4 weeks and allowed to fully discharge. Leaving a battery in storage for longer than this without using could cause the battery to fully discharge as the circuitry of the battery itself consumes power. Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the laptop battery.

e1405 batteries story: A few months back, when the exploding Dell e1405 laptop battery first started coming to the public attention, I wondered if my laptop would be affected. Eventually Dell set up a website to deal with it and published a list of PID’s (part numbers basically) that were affected and subject to recall. I remember looking through the chart for my serial number, and it wasn’t there. Great, no need to worry about my laptop catching fire and burning the building down while I was at work. I still left it unplugged while I was out though, just to be safe. Two weeks ago, while I was on vacation, I noticed my laptop battery seemed to discharge pretty quickly. I know that batteries start to degrade over time, after about 500 discharges and charges, but I didn’t think I was to that threshold yet. Rich’s Battery stopped charging when an internal counter hit 500 and just refused to ever work again. When this Dell e1405 battery was new, 18 months ago, I could last about 4.5 hours with the WiFi radio on and the screen at full brightness. It was pretty kick-ass. On the plane ride home from Vancouver, the battery died before I even finished watching a single DVD movie, with the screen brightness turned down a bit and the WiFi radio off. That was less than 50% of what it was when new. Not good. Within another week, I noticed it dying even quicker…..

Some of the best and useful apps to have on your n900. all of these are available from the Extras repository for free. (bare in mind bugs/errors will exist as they are in testing stage) Feel free to comment :) Comment/Rate/Subscribe

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