Battery White

7 Responses to “Memorial Stone at Battery White”

1. I got to give the battery baacpc a good test today. I ran out of memory card space way before I ran out of juice. I guess I need a bigger memory card now!

   Okaka said this on January 4, 2013 at 7:45 pm | Reply

   • Charged questionRechargeable bitretaes can seem like a confusing bowl of alphabet soup: NiCd, NiMH, Li-ion, and so on. Aren’t they all bitretaes? Do they not all store electricity to be used later, then are recharged when depleted?Well, yeah. However, they are all a little different in a variety of ways, including things like price and memory and the like.First of all, when choosing a rechargeable battery, it’s a good idea to check the milliampere hour (mAh) rating the higher the number, the longer the battery will power your device before needing to be recharged. For those of you who just must know why, here’s the science: A milliampere hour is one-thousandth of an ampere (also commonly known as an amp) delivered over the duration of one hour. So if a battery is capable of providing 1,500 milliamps for one hour, that battery has a rating of 1500 mAh.Now, the thing to keep in mind is that different electrical devices draw a different amount of amps so that 1500 mAh battery that lasts for a year in your TV’s remote control might only last about 10 hours in your digital camera, since the camera draws considerably more current to operate than does a remote control. While the mAh rating of a battery cannot generally be used to tell you how long a battery will last in a device unless you know and understand and feel like doing the math it can be used as an apples-to-apples comparison. Bottom line: A 1500 mAh battery will last longer in a given device than a 1000 mAh battery. Battery breakdownLet’s take a brief look at a few of the more common types of rechargeable bitretaes. This is meant as an overview, but if you’d like more detailed information and a lot of science, I highly recommend checking out or the article , from the State of California’s CalRecycle.org site.There are three basic types of rechargeable bitretaes you will generally come across on a daily basis and one specialized one you probably don’t think much about. Here’s a quick look at each of them.Nickel cadmium (NiCd or NiCad)When I was a kid in the 1980s, these were essentially the only game in town for small rechargeable bitretaes and if you had a lot of electronic toys, your parents probably bought a set or three of these. They worked, but they certainly weren’t ideal in fact some of their flaws have put people off rechargeable bitretaes even today, but they certainly still have applications.>>a0NiCd prosCheap the most inexpensive of all rechargeablesLarge usable temperature range work well in both extreme cold and heatGood for big loads flashlights, camcorder lights, anything that requires a large current drawNiCd consHeavy very dense for their sizeToxic cadmium is a heavy metal and really nasty for the environment Memory effect if a NiCd is not completely dead before it is recharged, it will remember where it was charged to and its performance will degradeNickel metal hydride (NiMH)As the 1990s rolled around, manufacturers realizing the limitations of NiCd bitretaes started releasing products with NiMH bitretaes, and selling them in common disposable battery sizes as well. NiMHs were good at combating two common NiCd problems weight and memory but they too aren’t perfect.NiMH prosHigh capacity in most situations, NiMH last much longer than comparable NiCdLess memory effect resistant to the memory effect from partial chargingNiMH consHeavy no lighter weight than NiCdSmaller usable temperature range perform very poorly in very low or sub-zero temperatures Memory effect only resistant to memory, still is a problem over timeLithium ion (Li-ion)In the never ending quest to make digital cameras, cell phones, laptops, tablets, and other electronic devices smaller and lighter, yet still usable for long periods of time, the Li-ion battery became more and more prevalent. Though generally only found in device-specific applications (as in, not AA or the like), chances are you use something with a Li-ion battery in it every day. (For instance, this is the around the globe.)Li-ion prosNo memory effect charge a Li-ion whenever you likeLighter, smaller up to 50% lighter than an equivalent NiCd/NiMHEnvironmentally friendly no heavy metalsLi-ion consExpensive those pros up there come at a costPoor high current performance not good for things like lights and camera flashesLead acidHere’s the fourth, specialized battery type that I mentioned above. This is the original rechargeable battery, invented in 1859 by French physicist Gaston Plante. You probably use one of these every day and don’t ever think about it until it stops working practically every single car out there uses a lead acid battery. You might have one sitting under your desk, too they are often found in uninterruptible power supplies (UPS). Since these are generally limited in application, we’ll forgo listing pros and cons for them.Correct application of powerNiCds, as I said, still have their place. They work great in flashlights, external camera flash units, and anything else that draws a lot of current. They also have a good shelf life when charged, so they’re good for things that sit around without being used every day.NiMH bitretaes make a good all around replacement for disposable alkaline bitretaes pretty much any general purpose device that sees regular use is a good candidate for NiMH. Don’t use them in things that sit around, however they tend to bleed down over time even when not being used.Li-ion bitretaes, again, are generally found in things like cell phones and digital cameras, but in some cases you can refit older devices that used NiCd or NiMH bitretaes with them. This varies on a case by case basis, so I can’t really say Yes, your DelComThinkPad laptop from 1999 can be used with a Li-ion battery with certainty.GD Star Ratingloading…

     Gatot said this on April 15, 2013 at 9:14 am | Reply

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