Battery seems discharged and PC will not recognize
Have been happy and using Clip for a few months. Have recharged batteries a few times. Fell asleep leaving power on and in morning could not power on. Plugged into PC USB port and it did not recognize it. Tried same USB port and cable on camera and they were OK. PC is very new Vista system.
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Re: Battery seems discharged and PC will not recognize
These are the most common methods for recovering Sandisk's Sansa Mp3 Players. I have been almost universally successful in recovering Sansa players using one or a combination of these methods. These methods do not work if you are having synchronization or music format issues - they are for recovering a player that will not power up, freezes, flashes, is not recognized by the computer, and a host of other issues.
Reset the Sansa Player first.On most models, restart is done by holding the power button in for 15 seconds or longer.Check your specific manual to be sure. The manuals are available from the Sansa website if they have been misplaced. Download the Sansa Recovery Tool from the Sansa website. Format - Erases Everything: Connect your Sansa player to the computer and open Windows Media Player. Click on the Sync tab. Pull down the drop down menu underneath the Sync tab by moving your cursor over the Sync tab and left clicking on the little black arrow underneath the Sync tab. Highlight "Sansa 1GB" (wording may vary slightly), and then select "Format." - this should erase everything. Firmware Upgrade- Erases Everything: Get the latest firmware upgrade from Sansa - it updates the firmware and erases every song in the player all at once. Note: this method doesn't work if already have the latest firmware. Go to this website and click "Firmware Updater" to find out: http://www.sandisk.com/DriverDownload/driverList.asp If these fail, then: Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard. If you get the problem where MTP Device keeps popping up continuously, uninstall the “MTP Device” by going to Start à Control Panel àSystem à Hardware à Device Manager (you computer may vary slightly, depending on Windows Version). You may have to restart your computer after each of these methods to get them to work properly. Disconnect your Sansa player BEFORE shutting down your computer. -Tha Mp3 Doctor
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<li>New battery pack must be fully charged before use.</li>
<li>New battery pack needs to be fully charged and discharged (cycled) a few times before it can condition to full capacity.</li>
<li>Rechargeable batteries undergo self-discharging when left unused. Always store a battery pack in a fully charged stage for storage.</li>
<li>Fully drain and fully recharge your battery pack every few month.</li>
<li>Turn down the LCD brightness of your portable device.</li>
<li>Use built-in power management on your portable device.</li>
<li>Turn off LCD or other unnecessary accessories when not in use.</li>
<li>Set screen saver blank to 1 to 2 minutes of your notebook</li>
<li>Add more RAM if you have extra RAM expansion slot, it will reduce the usage of hard drive and it is power exhaustive.</li>
<li>Close unused software in your notebook.</li>
<li>Remove unused PC Cards or USB devices from your notebook.</li>
<li>Don't watch DVD or play graphics intensive video games.</li>
<li>Don't short circuit terminal or store your battery pack with metal parts.</li>
<li>Don't drop or mutilate the battery pack.</li>
<li>Don't expose to moisture or water.</li>
<li>It is normal to get warm when charging or normal use. If it is getting too hot, there may be a problem with the device and qualified personnel should check it.</li></ul></span>
If a lithium battery is too deeply discharged or the cells matching become unbalanced from many deep discharges, then it can be permanently damaged. The chargers often have over discharge detection circuits, which prevent you from recharging the battery under these circumstances. This is because the battery when overdischarged, could vent or overheat etc. if recharged.
Overdischarge can happen if you don't recharge the camera after using it and then leave it in the closet for a long time before trying to recharge.
This often happens with laptops if you don't remove the battery when storing it for months. The laptop uses a small amount of current even when switched off and this causes the over discharge.
Best bet is to try and charge a new battery, to see that the charger is ok.
How old is the battery? It could be that the charger killed the battery; that is if it's early in life (less that 3 months old) if it's a year of more old it's a good chance that the battery is shot. Depending on the battery type, rechargeable have very specific duty cycle. You don't just plug them in all the time. You use it till it's at least 85% to 90% discharged before recharging them. If you don't they don't last very long.
The first thing to realize is that most wireless keyboards and mice will eat regular alkaline batteries for lunch. This is where most of my clients have gone wrong. It seems they are replacing batteries in a device around every month or even more often. For an office full of wireless devices, this can add up very quickly. Plus it also seems that certain devices act inconsistently with regular alkaline batteries. If you need to purchase a non-rechargeable battery for your wireless devices, you should purchase the "advanced" or "performance" type of batteries such as the Energizer Lithium or Duracell Quantum brands. For what it's worth, the Apple devices usually come with Energizer Lithium brand batteries. However, high performance batteries are more expensive than alkaline batteries and their cost will add up over time. So I don't recommend buying these batteries except in a pinch. What I really recommend are a particular type of rechargeable battery called low-discharge Nickel Metal Hydride (NiMH). I believe many people stay away from rechargeable batteries because of misconceptions based upon past generations of rechargeable batteries. Many people perceive rechargeable batteries as expensive and prone to failure. But the worst stigma associated with rechargeable batteries are that they don't hold their charge and never seem to be ready when they are needed. The reality is that today's new generation of low-discharge NiHM rechargeable batteries have resolved many of the issues that previous batteries suffered from. Low-discharge NiMH batteries hold their power on the order of months or years after charging. Unlike previous iterations of rechargeable batteries that lost their charge quickly, you can charge these batteries any time and they will be ready for use when you need them.
If the MP3 player battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced. Rechargeable batteries will fail if stored in a discharged state for long periods.
If the laptop battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced. Rechargeable batteries will fail if stored in a discharged state for long periods