Battery Tips |
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1.What is a Battery?
2.How to classify the battery?
3.What are the differences between Primary Battery and rechargeable battery?
4.What causes short lifetime of battery? How to prolong the lifetime of battery?
5.Why can't the battery be charged? How to solve this problem?
6.What's the reason that causes battery with no voltage or low voltage? How to avoid this problem?
1.What is a Battery?
In science and technology, a battery is a device that stores energy and makes it available in an electrical form. It converts chemical energy into electrical energy, producing an electric current when connected in a circuit. The finished battery is an electrically connected group of cells (wired in series) that stores an electrical charge and supplies a direct current (DC). We usually call finished battery as battery pack and unfinished battery is called as cell.
2.How to classify the battery?
Batteries are grouped into following categories:
Alkaline battery
Zincic carbolic battery
Lead-Acid battery
nickel-metal-hydride
nickel-cadmium
Lithium battery
Li-ion battery
Li-polymer battery
Fuel cells
Solar cells
Other types of battery
3.What are the differences between Primary Battery and rechargeable battery?
A primary battery is not intended to be recharged and is discarded when the battery has delivered all of its electrical energy.
A rechargeable battery is a galvanic battery which, after discharge, is restored to the fully charged state by the passage of an electrical current through the cell in the opposite direction to that of discharge.
4.What causes short lifetime of battery? How to prolong the lifetime of battery?
1)Reason:
a.Charger or electro circuit can't be fit for the battery.
b.Overcharge and overdischarge, etc.
c.Battery can't comply with the charging requirement
2)Solution:
a.Use the original charger.
b.Charge the battery after it automatically powers off , then full charge the battery.
c.Avoid erroneous usage of battery, such as heavy pressure, short circuit, fall off and so on.
5.Why can't the battery be charged? How to solve this problem?
1)Reason:
a.The battery has no voltage.
b.There is problem with charger, as it has no output electric current.
c.Low charging efficiency due to external cause.
2)Solutions:
a.Test whether the charger has voltage and output electric current or not.
b.Check if the charger is well contacted with battery.
c.Activate the battery with voltage and current 1.5 time higher then the highest ones of battery. (Use this method only when the battery can't be charged.)
6.What's the reason that causes battery with no voltage or low voltage? How to avoid this problem?
1)Reason
a.No voltage.
b.External shot circuit or overcharge, anti-charge
c.Cells expansion and short circuit caused by direct anode contact and continuous high efficiency electric current overcharging.
2)Solutions:
a.Check if the battery is without voltage or electric current.
b.Avoid short circuit.
c.Avoid collision and pressure among batteries.
d.Charge the battery after it automatically powers off , then full charge the battery. |
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How to Conserve your PDA Battery
Maximum battery life is achieved on the Pocket PC through brief, intermittent use. For example, you don't use much power if all you do is occasionally check your Calendar schedule, look up a Contact, or jot down a brief note. Of course, a major strength of the Pocket PC over simple personal information managers is that it allows you to play graphics-intensive games, watch videos, and listen to movies. Those activities can drain your batteries quickly. Here are some things you can do about it:
1 Always drop your Pocket PC into its sync/charging cradle when you sit down to work. This not only keeps your appointments and contacts current, it tops off the battery. When you're ready to go somewhere, you've got a fully-charged battery.
2 Keep your device set to power off in as brief a period as you can tolerate. This time is specified in the Advanced tab of the Power set up utility (Start > Settings > System > Power). Make sure the box labeled "Turn off device if not used for" is checked, and set the time in the drop-down menu adjacent to it (options: 1, 2, 3, 4, or 5 minutes). We recommend setting it to 1 minute first, and adjusting it upward if you find that it shuts off too quickly for you.
3 Press the power off button when you're finished. Even with auto power off set to 1 minute, you still waste a minute's worth of power.
4 Activate the Windows Media Player screen toggle feature. This allows you to turn the screen off by pressing a hardware button, while you're listening to music. You can configure other hardware buttons to go to the next or previous song, or to adjust the volume, so you don't need the screen on to control the program. To do this on a Pocket PC running the Windows Mobile 2003 (or previous) operating system, open Windows Media Player, activate the Tools menu, and go to Settings > Buttons. To do this on a Pocket PC running Windows Mobile 2003 Second Edition (or later) OS, open Media Player, activate the "Menu" menu, select Options, and go to the Button tab.
5 Finally, if you spend a lot of time away from your desk, and find that you are running out of power, consider carrying a spare battery with you. They are available from your Pocket PC manufacturer.
How to call internationally from your PDA for FREE
Skype welcomes you to the way of the future. Skype is a Voip (Voice over internet protocol) solution that allows users to make free calls over the internet to anyone else who also has Skype. It's free and easy to download and use, and works with most computers. The basic computer-to-computer service allows users to speak, to send instant messages or to send files to one another from their computers via the Internet at no cost. Conferences of up to five users are supported. Skype also has paid services allowing users to call traditional telephone numbers (SkypeOut), receive calls from traditional phones (SkypeIn), and receive voicemail messages.
It is quick and free to download, so jump on the Skype bandwagon with the rest of the world
For more information visit Skype.com
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