Thursday, September 22, 2011

NP-BN1 Battery

 NP-BN1 Battery

Sony DSC-W360 is not the slimmest compact camera in the market but is thin enough to slip in to your pockets easily. The 16.7mm camera weighs approx. 120g and comes in a brushed metal color.


Chemistry Li-ion
Voltage 3.7V
Capacity 630mAh
Dimensions 1.44 x 0.34 x 1.69 inch
Weight 0.7 oz.

Compatible with:


Fits into:

Sony Cyber-shot T: Cyber-shot TX5, Cyber-shot TX7
Sony Cyber-shot W: Cyber-shot W310, Cyber-shot W330,Cyber-shot W350,Cyber-shot W370

Monday, February 21, 2011

Apple looking to increase battery life with dense lithium cells

Apple looking to increase battery life with dense lithium cells

By Neil Hughes

Apple is investigating techniques to increase the energy capacity of rechargeable lithium battery cells without increasing the size of the battery, allowing longer battery life in future devices.

The proposed invention is detailed in a new patent application published by the U.S. Patent and Trademark Office this week and discovered by AppleInsider. The filing, titled "Increasing Energy Density in Rechargeable Lithium Battery Cells," describes charging a battery using a "multi-step constant-current constant-voltage (CC-CV) charging technique."

The CC-CV charging technique would allow the thickness of the anode active material inside a battery cell to be increased in both "volumetric and gravimetric energy density." But while the density of the power capacity would be increased, the size of the battery, as well as its maximum charging time and minimum life cycle, would remain unchanged.

Apple's application notes that the conventional method for increasing the battery capacity, or ampere-hour (mAh), of a lithium-ion or lithium-polymer battery involves increasing the lengths of the anode and cathode current collectors, as well as their coating materials But increasing the area of current collectors results in lower volumetric energy density, and results in a larger battery.

"What is needed is a technique for increasing the energy capacity of a rechargeable lithium battery without increasing the size of the battery sell," the filing states.

Patent 1

Apple's application notes that the company intends to make battery cells smaller, allowing the "limited space available in portable electronic devices to be used more efficiently." The company noted it could use the space savings to add more features, or more battery capacity.

But one issue with employing the multi-step CC-CV charging technique is battery life can be significantly decreased depending on temperature. For example, using the same current-charge density at 10 degrees celsius will lower the cycle life "substantially" when compared to a higher temperature such as 45 degrees.

In addition, current-charge densities further reduce the battery's cycle life if it is at a higher state of charge, between 70 percent and 100 percent.

Apple's solution would reduce the charge currents for a mobile device when its battery is at a higher state of charge, or a lower temperature. This would avoid degradation in the cycle life of the battery, and potentially even increase it, without any required change in battery chemistry.

Patent 2

The multi-step charging technique would be compatible with the new battery design and would increase battery life by dynamically adjusting the rate of charge when the battery is at different states of charge, or different temperatures.

Apple's proposed invention revealed this week was first filed with the U.S. Patent and Trademark Office on Aug. 22, 2009. It is credited to Ramesh C. Bhardwaj and Taisup Hwang.

Monday, February 14, 2011


Seoul, Korea, August 21, 2008 - SAMSUNG Electronics Co., Ltd. today unveiled a powerful compact digital camcorder, the MX20, with its newly developed platform that enables higher video quality and longer recording times. The new MX20 also allows users to upload their files to iPod and YouTube™ without transcoding the files.

"The MX20 is the next-generation camcorder engineered for people who want to capture more vivid memories and easily share them on multimedia devices and the internet," said Sang Ryong Kim, Senior Vice President of the Camcorder Business Team at SAMSUNG Electronics. "Leveraging SAMSUNG's unique features with iPod and YouTube™, consumers can keep more of their memories with ease."

High Performance with New Camcorder Platform
With its best-in-class semi-conductor chips and image processing technology, SAMSUNG has developed a new platform offering high video quality, longer recording times and low power consumption for SD camcorders to meet customer's demands. With the high performance of the new platform, SAMSUNG's MX20 features the longest battery life in its class - up to three hours.

Longer Recording Times with SAMSUNG's H.264 Technology
The new MX20 is the first to apply H.264 CODEC to SD camcorders. Compared to SD camcorders using MPEG-2, the MX20's H.264 enhances video quality and recording times significantly. In the "fine" mode, SAMSUNG's MX-20 camcorder can record up to 4 hours of footage using an 8GB memory card, 8 hours using a 16GB memory card, and up to 16 hours using a 32GB card. SAMSUNG's MX20 with H.264 more than doubles the compression ratio so that it takes less time to send video files via email or upload them onto the internet.

Optimised for High Quality Video
Focusing on high video quality, SAMSUNG's MX20 with its new platform is packed with powerful technologies such as 3-D noise reduction technology for smooth video, SAMSUNG's own edge filter technology for stunning video details and clarity, and colour control technology for original and natural colours.

The MX20 features a powerful, world-renowned Schneider lens with 34x optical zoom and SAMSUNG's improved Hyper Digital Image Stabilization, which compensates for the images caused by hand-shaking for sharper footage. The MX20 also includes advanced face detection technology which can automatically detect up to five faces and adjust the focus and diaphragm to ensure better composition. The new model optimises the video quality with a high-performance 680K-pixel CCD sensor.

iPod and YouTube™ Friendly
The MX20 features a unique shooting mode that allows users to select a resolution and format that's ideal for uploading videos to an iPod or YouTube™. Unlike other camcorders, users can easily import the video to iTunes and play it on iPod or other personal media players supporting H.264 without having to transcode the files. By selecting the Web & Mobile mode, the camcorder's resolution is automatically adjusted to 640 x 480 (H.264/AAC/MP4) and optimised for use on iPod or YouTube™.

Sophisticated Ease for Active Users
For active users, the MX20 is fully equipped with powerful functionalities in a stylish compact design. The camcorder offers SAMSUNG's exclusive swivel hand-grip which effortlessly adjusts for regular and those hard-to-reach low angle shots. It also has an advanced 2.7 inch screen LCD which helps users frame their subjects and review footage even under strong sunlight.

The MX20 offers useful iCheck and iScene modes. iCheck allows the user to quickly check remaining battery life and memory capacity without wasting time and energy by powering on; iScene allows the user to select up to 10 automatic scene modes for capturing the best footage no matter what environment they may be in. SAMSUNG's MX-20 camcorder also features a memory card slot for SD/SDHC and MMC+ (up to 32GB).

The SAMSUNG MX20, offered in black, white, red and blue will be available in September.

Saturday, December 13, 2008

Always Have Battery Power

Your camcorders battery life is very important. Without battery power you can quickly become useless. Here are some tips for making your camcorders batteries last as long as possible.

Buy the Longlife Battery

Buying an additional long life battery is the easiest way to ensure that you have enough battery power to get you through your event. When you buy a long life battery keep your original battery charged as a spare for emergency situations.

Charge The Battery

Camcorder batteries can lose charge when they have been stored for a long period of time. Even if you stored the battery at full charge plug your camcorder in the night before to make sure you get the most you can out of the battery when it matters.

Use the Viewfinder

Using the LCD screen can be tempting to do when you are recording an event. The LCD screen uses more than twice the battery power than your camcorders viewfinder does however. If you are in a situation where you want to conserve your camcorders battery power then try to close the LCD screen and use the viewfinder instead.

Watch Your Movie Later

It can be tempting to want to watch the funny event you just recorded. If you wait and watch the event later once your camcorder is plugged in then you will be able to save your battery power for recording more fun events.

Make Your Movement Uniform

Turning your camcorder on and off and zooming in and out can take up a lot of battery power. You are going to want to zoom, and turning your camcorder off when you are going to stop recording for a while is a good idea. Try to keep things like that to a minimum when you can.

Buy an External Battery Charger

If your camcorder uses itself as a battery charger then you may want to consider purchasing an additional external battery charger. If you have two batteries then you can leave one on the charger in the hotel room while you and your family are out for the day, stop back by in the afternoon and switch the battery on the charger for the battery on your camera. With an external battery charger you are able to have a battery constantly charging and also always have use of your camcorder.

Article by

Memory Effect in Nicad Camcorder Batteries

Yes, it does exist. And, yes, your batteries could possibly have the effects of it. It's the memory effect. The term "memory" basically is described as the battery "remembers" its usual discharge point and superficially "needs" a charge whenever it hits that point. In other words, if you have a NiCd that always gets discharged to only 50% of its capacity, it will eventually not run below that 50% mark if you ever wanted to discharge it to a lower point. Many people who do not know about this effect just throw away the battery because they think it is dead. More than likely, the battery can revived providing that the battery isn't completely damaged (i.e. from years of memory buildup). The most simple way to get rid of memory is to discharge the battery to 1.0 volts per cell (VPC) on a minimal load, and then charge it fully. Repeat this procedure until you notice the battery lasting longer and longer on the drain, until it holds its correct capacity and not the "memorized" one. Unfortunately, unless you have good equipment, it is hard to discharge to 1.0 VPC without accidentally "reversing" a cell. (See the Universal Camcorder Battery Charger Page) Now, if you were only working on one cell at a time, discharging to 1.0 VPC would be easy, but most batteries nowadays for cellular phones and such are multiple cells in a plastic case. This makes it hard to get every cell to 1.0 VPC. No batteries are created equal, and what will most likely happen in a multi-cell battery is that one or more of the cells will "reverse" because they are weaker than the other cells. The reversed cell begins to accept a "backwards" charge from the other better charged cells around it. This is really bad for a battery if you don't catch it, because chances are it won't charge again while in the pack. If you are going to discharge a pack and you cannot open it to test individual cell voltages, please discharge to approximately 1.2 VPC. This will help prevent reversing cells. If you do reverse a cell and can access each individual cell, I have found that giving that cell about 4.5 volts (up to 1 A current) in the right direction, it will probably set itself straight. Measure the voltage of the cell after the "shock" charge. If it doesn't improve, try again. If you are still unsuccessful, try a higher voltage. I've needed 9 volts in some cases to get a cell working again. Once you get the cell at > 1.2 volts, immediately put the pack on charge now so that battery won't have time to reverse again. Charge the pack fully for 24 hours on a trickle charge to make sure that the reversed cell(s) have recovered fully. Also note that the once-reversed cell will never be the same. It will now always be the first one to reverse in the pack, so you might want to be aware of that when you try to discharge/cycle it in the future. Remember this: if you treat your battery well from the beginning by never letting it acquire memory, you won't have to worry about these weird procedures. Also, remember that all batteries have an expected life. NiCds have a life of approximately 1000 cycles as long as they are treated very well. So, if your battery is really old and doesn't hold a charge anymore, chances are it's not memory, but a tired battery. Let it retire at a recycling center.

Thursday, December 11, 2008

Camcorder Battery tips

Rechargeable camcorder batteries can cost $40 or more, so knowing how to prolong the life of your battery and the perils of not caring for your battery properly saves you money as well as heartache from missed shots. First, you need the right battery for your camcorder. This is no big deal when you purchase your camcorder because a battery and charger are normally included in the purchase. The more you use your camcorder, though, the more you'll notice that your battery doesn't seem to stay charged as long as you would like or that it takes too long to recharge.

Now you have entered into the never-never land of camcorder rechargeable battery dilemmas. You ask yourself (because you don't know who else to ask) the following questions:

  • Is it okay to partially charge a battery before taking it off the charger and putting it back in the camcorder?
Yes - providing you own a newer camcorder, such as a digital camcorder. Newer camcorder manufacturers typically provide lithium ion batteries. These batteries can be partially recharged before reuse. Other batteries - especially nickel-cadmium (NiCad) batteries - can be damaged by only partially charging them.
  • Is it okay to recharge a battery when some charge remains?
If it's a lithium ion battery, yes. If it's a NiCad battery, no.
  • How do you know when to purchase a new camcorder battery?
Battery manufacturers generally consider a rechargeable battery to have reached its useful life when it can provide only about half of its original consumption. For instance, if your battery could originally provide an hour's worth of power, you should replace it when it can provide only a half-hour's worth.

You can save yourself a lot of trouble by purchasing an extra battery or two when you buy your camcorder. That way, you always have a backup in case the primary battery runs out of power. When purchasing batteries for your camcorder, consider the following:

  • Camcorder batteries have different specifications on how long they last. How much recording time relates to how much battery power?
Most professional camcorder operators tell you that the camcorder battery should be rated to operate for a period of time that's twice that of the tape. Don't assume that the battery that's provided with your camcorder is the best battery for your circumstances. A manufacturer usually provides you with a battery that's good for about an hour of camera usage. Because digital camcorder and Digital8 tape is usually 60 minutes long, you may think you have the correct battery, but chances are you don't. Most people run their camcorders in the nonrecord mode as much as they do in the record mode because you can't look through the viewfinder of a camcorder unless it's turned on. So, if you're using a 1-hour tape, you would be wise to use a 2-hour battery. Besides, a 2-hour battery is good for 2 hours only when it's new. Within a year or so, your 2-hour battery will have become a 1-hour battery due to normal aging factors. This inevitable aging is accelerated if you don't take proper care of your battery.
  • When buying a new battery, what type should I consider?
Always buy batteries that are made for your charger. And, obviously, always buy batteries that are rated for your camcorder. For example, the Canon GL1 is rated as 7.2 volts DC.

Caring for your camcorder battery doesn't mean that you must have an emotional attachment. But you do need to discipline yourself to certain practices, or you'll waste money and lose valuable shooting opportunities because you'll be tending to sick batteries. Follow these basic guidelines, and your batteries should serve you well:

  • Never expose your batteries to elevated temperatures. The numero uno enemy of batteries is heat. Anton/Bauer claims that heat can accelerate your battery's aging process by as much as 80 percent! Heat can also cause a lithium ion battery to lose its ability to hold a charge.
  • For long-term storage between uses (as in weeks), keep your batteries in the refrigerator. But before you nestle the batteries between the lettuce and rutabagas, put them (the batteries, that is) in a plastic bag to avoid the rare possibility of the battery seeping and causing food contamination.

  • Don't put a cold battery on a battery charger! If you take a battery out of cold storage or out of a cold environment (such as your car in winter), always allow your battery to reach room temperature before charging. Batteries have been known to explode if placed on a charger while cold. Charging creates heat.
  • Don't allow your batteries to jostle around while you're carrying them. Jostling directly affects your battery's life and performance. Also, never use a battery that has been physically damaged. The coating on the battery is supposed to keep the battery acid from seeping out. If the battery is damaged, these chemicals (which can be unstable and dangerous) can leak and cause damage to anything they touch.

Article from Yahoo Tips

Tuesday, November 25, 2008

Camcorder Battery Charging

Charging Camcorder Batteries

Batteries are an essential piece of the camcorder technology puzzle. Without important developments in delivering portable electric power in a small package, we’d never have the small, portable camcorders we’ve come to take for granted today.
For the most part, camcorder batteries are very simple to use and maintain. All you have to know how to do is charge them and how to put them on the camcorder properly, and chances are you’ll never have to worry about them. Yet underlying this deceptive simplicity are a few particulars about battery technology you should familiarize yourself with, at least so you’ll have the knowledge necessary to make informed purchase decisions when it’s time to buy spare batteries for your camcorder. And if you currently only own one battery, that time is probably right now.
In this article, we’ll be taking a look at four major types of camcorder battery technology: lead-acid, nickel-cadmium, nickel-metal hydride and lithium-ion. We’ll also make some suggestions about how to get the most mileage out of each type. Armed with this knowledge, you’ll be able to make your camcorder batteries last a few years longer.

Lead-Acid Batteries

Occupying the lowest rung on the technology ladder, lead-acid camcorder batteries are very similar to the type of battery that you use to start your car every morning. Lead-acid camcorder batteries are reliable and inexpensive, yet they suffer from a number of drawbacks, not the least of which is size and weight. Often, inexpensive batteries advertised as “memory-free” (see below) are of this type.
The voltage of a lead-acid battery falls off gradually as it discharges. This means a lead-acid battery should still have plenty of recording time left after the camcorder gives a low battery warning.
Always store lead-acid batteries fully charged. When you get home from a shoot, top off the charge and then be sure to remove them from the camcorder or charger. This will ensure that their charge won’t trickle away as they sit connected to the equipment. Lead-acid camcorder batteries can cease functioning entirely if left alone in an uncharged state or if discharged too far. Keep them dry, keep them out of direct sunlight and don’t drop them on a hard surface or subject them to any other kind of treatment that might break the case. As you can tell from the ominous name “lead-acid,” the contents are dangerous and poisonous. Always recycle old lead-acid batteries properly: their contents are extremely harmful to the environment. Recycling is free and convenient, so there is no excuse not to do so. See the Sidebar at the end of this article.

Nickel-cadmium batteries, commonly called NiCd (or Ni-Cd or NiCad®), were the most common type of camcorder battery a decade ago. Still found in a wide range of electronic devices, NiCds are light and have a long life with a steady discharge pattern. This means that, unlike their lead-acid cousins, NiCds deliver about the same level of voltage throughout their entire discharge cycle, then abruptly drop when they are low. So when your camcorder tells you the battery is low, if it’s a NiCd, you’d better wrap up your taping in a hurry.
Unlike lead-acid batteries, it’s not a good idea to promptly recharge NiCds after every usage. In fact, the opposite is true: NiCds should be fully discharged before recharging, in order to avoid the dreaded memory effect that plagues this type of battery. Technically speaking, these batteries do not have a memory chip, but they do exhibit an annoying behavior that seems like they remember the partial discharge, recharge pattern. Then, even though the battery is only partially discharged, the voltage drops, even though a charge remains. Special battery chargers (sometimes called battery conditioners) can automatically drain the power before charging it back up and are a good idea for users of NiCd batteries. Repeated discharging and charging may even rehabilitate a battery that suffers from this effect.
As with any battery, keep your NiCd batteries dry, cool and safe. The contents of NiCds are not as dangerous as lead-acid batteries, but they are highly poisonous and very bad for the environment, so be sure not to just throw them in the garbage when you’re done with them.

Nickel-Metal Hydride Batteries

Nickel-Metal Hydride batteries, usually shortened to NiMH, were developed in direct response to the environmentally unfriendly aspects of NiCds. More specifically, manufacturers wanted to develop a NiCd without the poisonous cadmium, and Nickel-Metal Hydride batteries were the result. As a bonus, fully charged NiMH batteries offer 10-25% greater capacity than NiCds. Unfortunately, they are also prone to the same memory effect that NiCds suffer from. You’ll find NiMHs in tons of consumer electronics products now days and you can even find rechargeable NiMHs in standard sizes such as AA and AAA for just about any device that needs batteries.
Like NiCds, NiMH batteries should not be charged immediately after every use. It’s better to allow them to fully discharge instead of constantly topping them off after brief usage. Keep them cool, dry and safe from shock, and even though they don’t contain cadmium, it’s still a good idea to recycle them.

Lithium-Ion Batteries

Lithium-Ion batteries (sometimes rendered Li-Ion) are the pinnacle of camcorder battery technology. They offer quick charge times, long life, steady discharge characteristics, low weight and small size. A Lithium-Ion battery offers about 40% more charge capacity than a NiCd battery of similar size and weight and can be fully charged in less than half the time. Lithium-Ion batteries do not suffer from the memory effect. As you might have guessed, Lithium-Ion batteries are also the most expensive type of camcorder battery available on the market today.
Unlike the other technologies we have been talking about, you can (and should) keep your Lithium-Ions fully charged: go ahead and top off a battery that is 90% charged back up to 100%. Otherwise, care and handling is the same as with the other batteries (say it with me): Keep Lithium-Ions cool, dry and safe from shock. Be sure to recycle them when they’re ready to be discarded.

A Few More Tips

* Mind the weather. Very hot or cold conditions can affect a battery’s performance and in some cases can even cause permanent damage. If you have an outdoor shoot in the Mojave desert in August or in Minnesota in February, be sure to keep the batteries climate-controlled as long as possible. Keep them in the car with the heater or cooler running, for example, until you need them, and return them to these conditions as quickly as possible when you’re done shooting.
* Bag ‘em. Many professionals store their charged batteries in plastic baggies. This keeps them dry and clean and also provides a way to tell which batteries are charged and which are not.
* Mark charged batteries. So now you’ve got four identical spare batteries for your camcorder; how can you tell which one is charged when you grab the camera for a shoot? Having some method, such as a piece of colored tape, to tell which ones are charged and which are not could prove very useful.
* Don’t overcharge your batteries. Especially with older technologies, follow the instructions and avoid overcharging your batteries. Leaving NiCds on the charger for a week is not a great idea from a safety standpoint, but can also affect battery performance.

Thermodynamic Laws

Eventually, all batteries reach the end of their lifespan and, alas, new batteries must take their place. However, if you take good care of them, you can prolong the life span of your batteries by a year or more. And given the sometimes high cost of replacement batteries, that’s good news, indeed.

Sidebar One: Battery Terminology

Battery Two or more electrochemical cells arranged in a series or parallel configuration to provide a given voltage or capacity. In common usage, the term “battery” also refers to single-cell units.
Battery Conditioner A type of charger that’s designed to discharge a battery completely, then slowly charge it back to full capacity in order to eliminate the memory effect associated with some NiCd and NiMH batteries.
Capacity The total amount of time a battery will discharge at a given rate of wattage or amperage.
Charge The conversion of electrical energy to chemical energy within a battery.
Memory Effect An annoying phenomenon that occurs when you partially discharge certain types of batteries repeatedly. This causes the camcorder to shut down before the battery is fully discharged.
Sidebar Two: Recycle

We know you’d love to recycle your old batteries instead of dumping those toxic metals into the ground, if only it was easy and convenient. Fortunately, the rechargeable power industry funds a program to do just that. In fact, from Best Buy to RadioShack to Wal-Mart, many stores that sell rechargeable batteries also recycle them. So the next time you are out buying rechargeable batteries, take your old ones in with you for an exchange. For more information and store locations near you (just enter your Zip code), please visit the Rechargeable Battery Recycling Corporation’s Web site:

Joe McCleskey is an instructional media specialist.

Joe McCleskey
October 2004