Would you please tell me about VRLA battery?
539975
hi\ncheck these links.it may help u.\ncheers
733809
B battery (vacuum tubes)\nFrom Wikipedia, the free encyclopedia\nJump to: navigation, search\nIn electronics, a B battery is any battery used to provide the plate voltage of a vacuum tube. It is sometimes colloquially referred to as a "dry battery" (although there's no reason why a "wet" battery of suitable voltage couldn't be utilised for the purpose) The term comes from the days of valve (tube) radios when it was common practice to use a dry battery for the plate (Anode) voltage and a rechargeable lead/acid "wet" battery for the filament voltage.\n\nEven when the plate voltage rail is fed by a power supply rather than a battery, it is generally referred to as the "B+" line.\n\nhttp://en.wikipedia.org/wiki/B_battery_%28vacuum_tubes%29\n\nAND Check out\nhttp://en.wikipedia.org/wiki/List_of_battery_sizes
1078524
I once read about a device with which reconditioning may be achieved 90% of the time on some types of batteries by applying a very brief, high voltage pulse (kinda like a camera's flash system) across the terminals of individual rechargeable cells.  I tried an improvised version of it with NiCD and sealed lead batteries, and it seemed to work most of the time.  I couldn't find plans for the device when I searched just now, though, so I can't really tell you more than that.  Unless you're knowledgeable in the field of electronics, I suggest you just get another battery because the method of recycling I just described may be dangerous.
989664
the big battery , lol
833847
Contact dell and tell them you want a new battery. dont leave it any longer, cos after the 1st year they dont want to know about the battery.\n\nTrust me your battery is fubar, its happened to me several times.
46440
cause it's memory depend on battery power
250746
This is the best answer you'll get -\nhttp://electronics.howstuffworks.com/battery.html
570123
You can try this:\n\nhttp://www.batterystandard.com/product.asp?ItemID=13314\n\nI just checked on eBay and they don't have any listed right now, but that's always a good place to look as well.  You may want to do a search by the make and model of the laptop too - that might give you other batteries by different manufacturers.
1071002
How does the chemistry of a dry cell battery affect it's voltage yield..\n\nget 2 or 3 types of dry cell batteries, (as in alkaline/nickel, not AA or AAA) research on the chemistry and stuff of it, get 2 or 3 flashlights or something that can use up the batteries, and a voltage meter.\n\nsee which battery runs out fastest (keep the flashlight or whatever you use on 24/7).
130064
CONCLUSION\n\nIn the course of these experiments, you have become familiar with various concepts such as the conductivity of solutions by way of dissolved ions. you have seen redox reactions at work, and that they can be reversed by running current through the circuit. You have learned to measure potentials of reduction of various materials and to predict the voltage generated by a battery when you know it's material components. You can build a working battery from various materials, including lemons, tomatoes, potatoes, almost any fruit or vegetable. Up until now, batteries may have seemed mysterious, but now we are among the few that have a working knowledge of how and why they work. You can amaze your friends by building a battery out of almost anything, but more important than this, now the study and mastery of this subject will be easier and more meaningful\n\nsee the full answer here:
936680
1.)   The battery contains 4 amp hours of electrons.  This means it can be drained at the rate of 1 amp per hour for 4 hours.\n2.)   So, if you are only draining it at the rate of 1//4 amp per hour it will last 4 times as long or 16 hours.\n3.)   Just think of a battery as a bucket full of water e.i. The slower you pour it out the long it lasts.
176717
If batteryplus.com doesn't work, try ebay.  You'd be surprised what you can find there.  BEST OF LUCK!
824113
Yup,\nDepends on the type of batteries (AA, C, or D) and how they are wired together series, parallel or a combination.  Most batteries are 1.5 V per cell.  If they're in series, add the voltage, if they're in parallel, they're there for available current or increased battery life.  The gadget may have some name plate data on the box or the device that says what the voltage and current requirements are.\n\nAnyhow a trip to Radio Shack and a little bit of wiring is all you need.  They have a couple of universal AC to DC transformers you can plug into the wall.
710117
http://www.studentcomputers.co.uk/laptop-battery/acer-laptop-battery/acer-aspire-1680-laptop-battery.htm
55953
Make a battery from a lemon!\n\nhttp://www.energyquest.ca.gov/projects/lemon.html
887205
------------\nThe most damning piece of evidence in this controversy is the suppression of the NIMH battery. \n*\nThis battery was developed by a small Michigan research company. GM invested in this technology, and the NIMH battery was used in the two most successful electric cars built to date: GM's EV1 and the Toyota RAV4 EV.\n*\nSo what happened? After California gave in to industry pressure and scrapped their electric car mandate, nearly all of the electric cars on the road were crushed, and GM sold the patents for NIMH batteries to Chevron and Texaco.\n*\nA company named Cobasys was formed by the oil companies to control the patents. Cobasys sued Toyota and others to stop production of the large-size NIMH batteries used by electric vehicles.\n*\nSo how good are these batteries? Good enough to provide at least 200-mile ranges to electric cars. And they are durable. There are a few Toyota RAV 4 EVs still on the road, with the original batteries still installed. Many of these batteries have over 100,000 miles on them, with no failures.\n*\nCobasys makes it very, very difficult for anybody to manufacture large-size NIMH batteries. This means they are giving up markets for things like automotive starter batteries, motorized wheelchairs, golf carts, marine batteries, etc. \n*\nBear in mind that these are very, very good batteries, so NIMHs could dominate all of those markets if large-size NIMHs were sold. Somebody over there is VERY afraid of electric vehicles.\n----------
676452
If you use the same bulb for all these different voltages, it will either burn out really fast on 12V or not light at all on 1.5V, or do both. You didn't say what the 12V battery is; suppose it's a car storage battery, then it'll shine brightest and last longest if you use the right bulb, which would be 12V (to not burn out) and something like a brake-light bulb (3 amps or so, which will last at least 20 hours on one charge and put out 36 watts). You can't beat that combination (brightness times duration) with any other of the batteries you listed.