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Re: dell c640 laptop battery
Normally that is the best way. Turn your system on and let it run down without the power cord. It will shutdown automatically when the battery is really low. Then with the system off, connect the power cord and let the battery recharge. I'd let give it at least a 10 hour charge if not overnight. Should be OK by then.
When you power back up the next day, look for the "icon" that lets you check power levels. That little program should tell you loads of information that you might find useful. Look for "hints' that will extend your battery life too. The newer batteries today no longer have that "Memory Issue" they once had. Just remember re-chargeable batteries do wear out over time. You can only recharge them so many times but that's now in the hundreds with the newer ones or around 2-3 years depending on usage.
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1.Check the device's battery level for at least two bars of strength. 2.If the battery level is low, charge the battery. 3.If the issue is not resolved, remove the back cover. 4.Remove the battery. 5.Wait 10 seconds. 6.Press and hold the W key. 7.While pressing down the W key, re-insert the battery. •The device restarts and after approximately 15 seconds, the 'Recovery' screen appears •Release the power button but *continue holding the home button*, for another 30 seconds. Step Thanks
Some of The Canon Powershot A530 and A540 cameras are subject to an advisory recall. Seems that a small spring on the battery compartment door can short out the batteries. Suspect this of yours, in that you mention that your batteries aren't lasting long. If your camera is on the list, Canon should fix this for you for free, including free shipping both ways. This is regardless of your camera's warranty status. Please check this link for more info:
The JBL On Stage Micro is supposed to disable recharging of the iPod when running off AAA batteries to avoid draining them, but sometimes this setting gets stuck even when the unit is plugged in through the AC adapter. The workaround that I found is pulling out and reconnecting the iPod to the Onstage Micro (while both are powered on) and then unplugging and reconnecting the AC adapter. Sometimes you have to repeat this process, but the iPod should start recharging after that. I tried this on different versions of the iPod nano and this seems to work.
When i comes to digital cameras, you really need top quality rechargables or at least 'alkaline' disposables.
I would highly suggest your batteries are not "powerful" enough for the camera.
Next time you're in the shops, look at the range of rechargables and you'll see, if not on the packet, on the side of the batteries them selves, a "mAh" rating. This is the "power" delivery of the battery. Although all of the rechargable batteries are supposed to be 1.2v, that voltage can be delivered in quantities. As rechargables deteriorate, the voltage may test well on a multimeter, or appear to work well on a low-load appliance, but can not supply the 1.2v fast enough to a high-load unit such as a digital camera.
A cheap check is get some NEW "alkaline" batteries and put them in, if they work, use them and shop around for some quality rechargables - I'd suggest getting the charger with the batteries for their maxumum life.
Please let us know how you go and if this solve the problem or not, so we can chase it further should you need it.
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