Flashlight Batteries
How Batteries Work
Batteries are all over the place — in our cars, our PCs, laptops, portable MP3 players and cell phones. A battery is essentially a can full of chemicals that produce electrons. Chemical reactions that produce electrons are called electrochemical reactions. In this article, you’ll learn all about batteries — the basic concept at work, the actual chemistry going on inside a battery, rechargeable versions, what the future holds for batteries and possible power sources that could replace them.
If you look at any battery, you’ll notice that it has two terminals. One terminal is marked (+), or positive, while the other is marked (-), or negative. In an AA, C or D cell (normal flashlight batteries), the ends of the battery are the terminals. In a large car battery, there are two heavy lead posts that act as the terminals.
Electrons collect on the negative terminal of the battery. If you connect a wire between the negative and positive terminals, the electrons will flow from the negative to the positive terminal as fast as they can (and wear out the battery very quickly — this also tends to be dangerous, especially with large batteries, so it is not something you want to be doing). Normally, you connect some type of load to the battery using the wire. The load might be something like a light bulb, a motor or an electronic circuit like a radio.
Inside the battery itself, a chemical reaction produces the electrons. The speed of electron production by this chemical reaction (the battery’s internal resistance) controls how many electrons can flow between the terminals. Electrons flow from the battery into a wire, and must travel from the negative to the positive terminal for the chemical reaction to take place. That is why a battery can sit on a shelf for a year and still have plenty of power — unless electrons are flowing from the negative to the positive terminal, the chemical reaction does not take place. Once you connect a wire, the reaction starts. The ability to harness this sort of reaction started with the voltaic pile.
Next, we’ll check out how a voltaic pile works and look at other types of batteries.
Australia largest battery & charger supplier provides you cheap camcorder batteries : PANASONIC CGA DU06 camcorder battery HITACHI DZ-BP14S battery
About the Author
Welcome to ebattery.com.au Some laptop components, such as laptop batteries, AC adapters and battery chargers, can be found in usual offline stores, but at a higher price. You can save your time and money buying components for your laptop on our site – up to 30-35% savings on a new laptop battery and other items! http://www.ebattery.com.au
LED Flashlight Batteries Included iPhone App Review
|
|
GENUINE STREAMLIGHT BATTERY # 25170 $27.00 |
|
|
New Fenix LD12 R5 Cree LED 115 Lumens Flashlight with SONY NiMH AA Batteries $46.98 |
|
|
NITEBEAM 18650 Universal Battery Charger $7.95 |
|
|
Ultrafire 18650 Battery for NITEBEAM Flashlights – Lot of 2 $11.60 |
|
|
New Fenix LD22 R5 Cree LED 190 Lumens Flashlight with SONY NiMH AA Batteries $52.95 |
|
|
Solarlite Hybrid Solar LED Bright Waterproof Flashlight w/ Backup Battery Orange $14.95 |
|
|
2 Solarlite Hybrid Solar LED Bright Waterproof Flashlight Backup Battery Orange $25.95 |
|
|
STREAMLIGHT 61301 ARGO LED FLASHLIGHT WITH BATTERIES $33.80 |
|
|
2 Solarlite Hybrid Solar LED Bright Waterproof Flashlight Backup Battery Blue $25.95 |
|
|
120 Lumens Hybrid Solar LED Bright Waterproof Flashlight with Backup Battery $19.95 |
|
|
Two 120 Lumens Hybrid Solar LED Bright Waterproof Flashlight with Backup Battery $36.90 |
|
|
Pocket Metal LED Flashlight Torch with Battery $3.99 |
|
|
3W 340LM Police CREE LED Flashlight Torch Set Torch 3 in 1 Rechargeable Battery $8.97 |
|
|
2 NEW Flashlight Rechargeable Battery Pack for STREAMLIGHT STINGER 3 Sub C $7.66 |
|
|
2 NEW Battery for STREAMLIGHT FLASHLIGHT 123 123A CR123 $0.01 |
|
|
Original 1949 battery for Cheerios LONE RANGER Flashlight Ring radio premium! $20.00 |
|
|
3W 340LM Police CREE LED Flashlight Torch Set Torch 3 in 1 Rechargeable Battery $8.98 |
|
|
280 Lm CREE Zoomable Led Flashlight Torch + Battery $11.99 |
|
|
7W 400 Lumens Led Adjustable Focus CREE Flashlight Torch + Battery + Free Gift $5.99 |
|
|
1942 Bond Flashlight Battery WWII Blackout’s UK USA Ad $9.34 |
|
|
Flashlight Torch Lamp Alpha G8 502B LED CREE 2 CR123 batteries holster Tactical $24.99 |
|
|
PELICAN 3330 BLK LED TACTICAL FLASHLIGHT FREE BATTERY $36.99 |
|
|
PREMIERLIGHT PL-7 Laser/LED Flashlight With Surefire Batteries $24.00 |
|
|
Flashlight Rechargeable Battery Pack for STREAMLIGHT STINGER Flashlight 3 Sub C $3.73 |
|
|
Pocket/Pen 6 LED Light Flashlight w 9V Eveready Battery $0.95 |
|
|
REAL Shake LED Flashlight/Torch, good for emergency no batteries required! $5.99 |
|
|
Flashlights 9 Bulb LED w/Batteries Wholesale 144 pcs $237.60 |
|
|
35/28W HID Xenon Flashlight 3200LM Ultra-Bright Torch 4400mAh Battery $118.00 |
|
|
New NEBO Redline 5581 220 Lumens LED Tactical Flashlight with Batteries $19.98 |
|
|
Rechargeable Flashlight with CREE XML T6 1000 Lumens LED ( plus 3 batteries ) $24.99 |
|
|
Rechargeable CREE XM-L T6 LED 1000 Lumens zoom focus Flashlight (2 batteries) $32.99 |
|
|
New Olight i2 EOS Cree XP-G LED AA Key chain Flashlight Black with Battery $20.99 |
|
|
Ghost Hunter Meter+ 9 LED Flashlight+Case Gauss/EMF Detector- Batteries Included $24.99 |
|
|
New Olight i3 EOS Cree XP-G LED AAA Key chain Flashlight Black with Battery $17.50 |
|
|
LIGHT, BATTERY, CHARGER AND LASER. XENO E-O3 XM-L LED W/ 14500 3.6v AA size batt $38.99 |
|
|
Zoomable CREE T6 LED 1600lm 5-Mode Flashlight Torch+Rechargeable battery&charger $0.99 |
|
|
Battery Free Hand Pressing White LED Flashlight Torch $5.97 |
|
|
AAA Battery LED Penlight / Flashlight Black 5 1/2″ $4.52 |
|
|
STREAMLIGHT TACTICAL LED FLASHLIGHT 110 LUMENS PT 1L 88030 with POUCH & BATTERY $37.95 |
[backlinksmage]