This is a Lithium-ion charger for lipo batteries. Circuit schematic shows configuration for charging single 3.7V lipo battery but voltage can be set to charge several batteries in series. Lipo charger sets a current limit with the LM317, and 1 resistor, and the voltage limit with the TL431, and 2 resistors. 1K resistor is needed [...]
Wireless 360 controller tops battery life testFiled under: News, Peripherals, Console warsAccording to a feature from the folks at GamePro, Xbox 360 owners can expect more gaming bang for their battery-life buck. Multiple tests on the Xbox 360 wireless controller, SIXAXIS and Wii Remote were conducted to see which one would last the longest. Scraping the bottom of the battery-life barrel was the PlayStation 3 SIXAXIS which only held out for 18 hours and 41 minutes; mainly due to the lack of auto-off functionality. Second place went to the Nintendo Wii remote, doubling Sony's time at 36 hours and 43 minutes. Xbox 360's wireless remote topped the list at 56 hours and 56 minutes. While the article states that the Xbox 360 dashboard battery indicator isn't as accurate as the PS3 or Wii, a single-day charge and play session always lasted longer on Xbox 360. In case you were wondering, the irony that anything associated with the Xbox 360 won a reliability test was lost on no one. [Than
How to Make Your Cell Phone Battery Last Longer While many of us now use cell phones in place of land-line phones in our homes, the primary benefit of cell phones remains their portability. A cell phone is only as portable as its power source, however, so to get the most out of your phone you need to get the most out of your battery. When it comes to battery life, there are two separate, but connected, considerations: how to make the battery last longer between charges, and how to prolong the overall life of the battery. Increase Time between Charges Turn the phone off. This is probably the most effective and simplest way of conserving your battery’s power. If you don't plan on answering the phone while you're sleeping or after business hours, just turn it off. Do the same if you are in an area with no reception (such as a subway or remote area) or in a roaming area, since constantly searching for service depletes the battery fairly quickly. Some pho
Many Laptop user reporting leak of battery power before a year usage, the battery can't serve more than a hour or it's just off if there is no electrical power support on it (nonchargeable anymore). The life of a rechargeable battery operating under normal conditions is generally between
From Defense Update:
The Mississippi State University (MSU) will develop a portable power system to support long endurance military applications. The development is funded by a $1.6 million program awarded by a U.S. Defense Department. MSU established a 'technology partnership' with Ultra
iRobot Roomba APS 4905 BatteryProduct Description APS battery compatible with all Roomba FloorVac modelsCharges in 3 hours with ABS Fast ChargerProvides approximately 120 minutes of run-time50 percent greater useful life than original Roomba batteriesEasy to charge and connectProduct Details Amazon Sales Rank: #9 in Kitchen & Housewares Brand: iRobot Model: 4905 Released on: 2004-09-15 Number of items: 1 Dimensions: 1.75 poundsFeatures APS battery compatible with all Roomba FloorVac models Charges in 3 hours with ABS Fast Charger Provides approximately 120 minutes of run-time 50 percent greater useful life than original Roomba batteries Easy to charge and connectCustomer ReviewsRoomba BatteryProduct was delivered as expected and now the Roomba is happy and scampering around once again.IRoomba BatteryProduct arrived immediately afgter order was placed and was brand new and in perfect condition.Helped my MomSeveral years ago, my husband and I purchased a Roomba for my 80 year old
I am not a good picture taker. I always forget the camera for an important event or even when the kids are doing something cute. I never used to be that way. I have a zillion pictures of Becca and Megan and it gets less and less with each kid. Part of the reason is it seems like everytime I go to grab my camera for an activity the kids are in, I find the battery is dead or almost dead. After a
Today's automobiles are sophisticated machines with GPS navigation, LCD screens, DVD players and iPods. However, all of these 21st century technological wonders are still at the mercy of the car battery and the automobiles electrical system. Car batteries have improved over the years but the technology is basically the same. Most of us do not even think of our car battery until our reliable car refuses to start and we are stranded in a parking lot. A modern car battery tester can evaluate trouble with your automotive battery and determine the correct course of action a technician needs to take.Car battery testers use the BCI adjustable load test as a measurement to decide if your car's battery is usable or needs to be replaced. The car battery tester measures the voltage drop when an applied load that is ½ the car battery's CCA rating is used. The load is applied for at least 15 seconds and the voltage drop is measured. The voltage should not drop below 9.6 volts for the battery to be
I have a set of noise cancelling headphones at work. The active part does a nice job on the building ventilation and computer fans, and the passive part on my co-worker’s phone conversations. I didn’t like the idea of wasting batteries, though, and the system didn’t seem to like even NiMH rechargeables. So, I decided [...]
Now you can replace your Refurbished iphone or new iPhone’s battery on your own. Though possible it appears to be a tough surgical procedure and if you are willing to perform this operation at your own risk the guys over at Gear Live have posted a video showing how you can replace your very own iPhone battery. Apple will repair your iPhone for a service fee of $79, plus $6.95 shipping with the caveat that service may not be available if your iPhone has been damaged due to accident or abuse therefore when you open up the iPhone, there’s a chance of something going wrong, so you could end up paying a lot more than it would have cost you to just get the battery from Apple in the first place. So the question is how long will the iphone batteries last? iphone owners hope the batteries last long enough that you won’t be doing this very often, but the phones are still pretty new, so we haven’t really found out yet.The video shows that it is beyond the average user to perform this kind
Now you can replace your Refurbished iphone or new iPhone’s battery on your own. Though possible it appears to be a tough surgical procedure and if you are willing to perform this operation at your own risk the guys over at Gear Live have posted a video showing how you can replace your very own iPhone battery. Apple will repair your iPhone for a service fee of $79, plus $6.95 shipping with the caveat that service may not be available if your iPhone has been damaged due to accident or abuse therefore when you open up the iPhone, there’s a chance of something going wrong, so you could end up paying a lot more than it would have cost you to just get the battery from Apple in the first place. So the question is how long will the iphone batteries last? iphone owners hope the batteries last long enough that you won’t be doing this very often, but the phones are still pretty new, so we haven’t really found out yet.The video shows that it is beyond the average user to perform this kind
It always happens to me since my old Olympus digital compact is really a battery-drainer… imagine this scenario, I’m either about to take a sexy cosplayer or asking someone to take my photo with a celebrity and then bam! The battery runs out on me and makes a fool. Arggg!
Oh well, here are some tips [...]
With just a low cost DC adapter and the circuit described here it is possible to build a low cost stabilised, uninterruptible 9 V supply. On the grounds of safety and economy, a simple unstabilised 12 V D.C. adapter is used as the power source, a universal adapter with its output set to 12 V [...]
Laptops can be regarded as our babies. Every single time, we need to take good care of them, and always ensure that they have the key essentials to survive for a longer period of time. You would not wish to see your laptop die off on you while you are doing your work with it, would you? So it would be crucial for you to make sure that the battery life can last as long as possible and that it does not shut down on you too often. It could be quite a nuisance if that happens all the time.Therefore, we would like to share with you five key tips on how your laptops’ battery life can be preserved for a much longer period of time, which can save you from having to recharge your laptops every one or two hours.Bring down the light intensity of the laptop display. Every time you bring it down, you are saving the battery from losing ten minutes of its life. You should also lower down the monitor resolution and color quality that can help to increase the battery life as well. Just click on the
This is a charger for lithium ion batteries which takes its power from the USB port of a computer.
It uses the MCP73861 or MCP73863 Li-ion battery charger chip manufactured by Microchip.
Read More Source:
http://www.instructables.com/id/USB-Li-ion-battery-charger/
Thank you.
battery charger, digital circuit, Li on battery chargerShare This
This is a charger for lithium ion batteries which takes its power from the USB port of a computer. It uses the MCP73861 or MCP73863 Li-ion battery charger chip manufactured by Microchip. The circuit board is a piece of single sided copper clad board. A hole is cut inside it so that it will accommodate [...]
This design is a 3A battery charger intended for use with 5-cell Ni-Cd or Ni-MH battery packs (but can be modified to suit other numbers of cells). The circuit includes automatic shutoff that occurs when the battery temperature rises 10°C above ambient.
This battery charger shown in Figure 1 was developed specifically for applications using either [...]
Do not set your laptop on a bed, couch, pillow, or in some cases your lap. This will heat up the laptop due to poor ventilation and destroy the battery. Kill it once a month. Once a month allow the...
Do not set your laptop on a bed, couch, pillow, or in some cases your lap. This will heat up the laptop due to poor ventilation and destroy the battery. Kill it once a month. Once a month allow the...
Pierce Brosnan is being investigated by sheriff’s officials for an alleged battery in Malibu.
Steve Whitmore, a spokesman for the Los Angeles County Sheriff’s Department, said Brosnan star allegedly committed the battery Friday night outside a Mexican restaurant. Whitmore said Brosnan wasn’t arrested or detained. He identified the alleged victim as Robert Rosen, but declined to [...]
From Newlaunches.com:
The Railway Technical Research Institute in Kokubunji, Tokyo, has developed a streetcar powered by a lithium battery that can recharge in under a minute. The institute will start conducting test runs in Sapporo at the end of November to check the streetcar
The MAX1044 is a charge pump converter - it uses a capacitor as a “bucket” to pump charge from one place to another. In this case, the 1044 connects the + terminal of C1 to +9V from the battery and its negative terminal to ground. C1 charges up to 9V from the battery. The 1044 [...]
Rating:
Version tested: 2.5.1
Most of us laptop users are concerned about battery life. For Apple users there now is a utility called CoconutBattery.
This tiny utility lets you know about the battery in your computer, like what the current battery charge is and whether the battery is currently charging or not. But it also tells you [...]
Ultra-low current drawing
1.5V battery supply
This circuit is usable as a Night Lamp when a wall mains socket is not available to plug-in an ever running small neon lamp device. In order to ensure minimum battery consumption, one 1.5V cell is used, and a simple voltage doubler drives a pulsating ultra-bright LED: current drawing is less [...]
This low voltage circuit can be used to monitor battery and other volatile sources of current for problems. The circuit sounds an alarm and lights an LED, but can be interfaced to any number of other circuits for many different uses.
Description
R1, R3 2 1K 1/4W Resistor
R2 1 5K Pot
U1 1 LM339 Voltage comparator IC
D1 1 [...]
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Geotagging kind of loses its appeal when it’s cutting your battery life to ribbons, which is where GeoPic II comes in. The unit slides into your DSLR’s hot shoe and embeds GPS information off of a SiRFstar III chip onto your photo’s meta data, just like the competition, but what sets the GeoPic II apart [...]
In the circuit below, a quad voltage comparator (LM339) is used as a simple bar graph meter to indicate the charge condition of a 12 volt, lead acid battery. A 5 volt reference voltage is connected to each of the (+) inputs of the four comparators and the (-) inputs are connected to successive points [...]
A universal PSP unbricker/downgrader by the Prometheus project, also known as Team C+D.REQUIREMENTS- A spare PSP Battery. Any make will do. Using a spare is best, as it will not be possible to boot the PSP in its normal state with the modified battery.- A spare Memory Stick Pro Duo of less than 4Gb. (256Mb should be enough for all applications).- A PSP with a Custom Firmware such as OE, M33 or WC, or a PSP with the 1.5 original kernel.INSTALLATION PROCEDURE- Connect the PSP to the PC with the Memory Stick inside via the USB Connection.- Format the Memory Stick using any utility.- Use mspformat to format the Memory Stick logically.- Remove the Memory Stick and disable the USB connection.- Connect the Memory Stick again via the USB connection of the PSP.- Manually create the PSP/GAME (optionally PSP/GAME150) folders on the Memory Stick.- Copy the "battery" and "installer" programs to the PSP/GAME (optionally PSP/GAME150) folder.- Copy the 1.50 official updater as UPDATE.PBP to the root o
I was looking around on http://www.solarray.com/ when I stumbled upon the “batteries” page of their online catalog. At the bottom was this:
“**NOTE **
The price of lead is climbing every day. From 8/1/07 to 8/20/07 it has gone up 25%. Please email support@solarray.com for current prices.”
I’d heard something in passing somewhere else in the past, but [...]
About this product I used Vector Smart VEC1089A 12V Battery Charger. It is one of the best items I have ever bought it has helped out so many times with my car and other cars around me. It has helped me determine what was wrong with my car like check my battery or charge it up if it is needs charging. One day when I was wondering why my car was acting up so I decided to do the alternator check option it turned out to be a bad alternator. If it was not for me checking it out with this I would not have known about having bad alternator. Being a woman it has helped me out so much plus it is an easy to use. I recommended it to all female friends along with anyone who wants to check the health of a battery or an alternator. Vector Smart 1089A, 5/10/15 Amp Charge Rate, Fully Automatic with Float Mode Monitoring. Features available automatic temperature compensation with battery type selection, digital diagnostics, plus alternator and battery voltage check. Digital display shows charge rate,
When the Chargers formerly had their team headquarters at Qualcomm Stadium, the media lounge was named after famous local radio personality Rick “Red” Hill.While at the Chargers’ Murphy Canyon complex this week, Red had the battery go dead in his vehicle.The Chargers can only hope they don’t follow Red’s lead when they play on national television Sunday night at New England.This is a revenge game for the Chargers; another of 16 games for the Patriots.If you don’t believe the Chargers are looking to atone for their 24-21 playoff loss to New England in January, then you’ve been listening too much to what the players are saying this week. (Obviously, they’re not going to give the Patriots any bulletin board material with their verbiage.)In a round-about way, New England has its own reason for extra motivation Sunday. The Patriots will try to prove they can beat a team without spying on the opponents’ coaching signals.Bill Belichick has 500,000 reasons (his $500,000 NFL f
A recent Ship Shape TV episode featured Battery Tender products for on-board battery charging. They seemed to have several reasonably priced, well featured products. Might be worth a look.
Welcome to Batterytender.com... Home of the World's Most Advanced Fully Automatic Battery Charger for Longer Battery Life, Dependability, and far Less Maintenance! Guaranteed!
Why the Battery Tender® vs. conventional chargers?
Avoid the potentially damaging effects caused by most trickle chargers! Battery Tender® BTP Microprocessor Technology and quick-connect convenience automatically maintains the batteries in all your vehicles so they are ready to go when you are! You just set it, and forget it!
This is circuit power supply, 6V backup battery power supply regulator with IC 7805
For inportant circuit, Because this circuit with backup system by Baterry 6V.
Detail read in circuit.
7805, battery, Battery Backup Supply, Power supply circuit, power supply regulator, power supplyShare This
Britney Spears' is now in the hot seat for swinging away at paparazzo in Vegas. From source, We learned that Cesar Julio Camera has been charged with one count of battery in connection with an altercation with a photographer last month. Britney Spears and her bodyguard might not be welcome at the Wynn Las Vegas anymore.As per source Spears' bodyguard Julio "JC" Camera roughed up a photographer outside the Wynn spa after an altercation over the photographer's.A photographer who was shooting Spears vacationing with her two children at the resort claims that earlier today, Camera shoved his partner in the chest and accidentally hit toddler Sean Preston in the process.After that the photographer then alleges that Spears started crying while Camera tackled his partner to the ground and began punching. He claims that after Wynn security asked all parties involved to leave, the Las Vegas police were called to take statements.Las Vegas Police Department tells that Camera has been issued a cit
Vehicle fuel is becoming expensive and inaffordable to common people. To avoid using petrol, I have imagined somthing which I am not sure would be pra...
A new type of flexible battery, developed by scientists Polytechnic Rensselera (Rensselaer Polytechnic Institute) from the city of Troy (NY, USA) and the Massachusetts Institute of Technology (MIT), is designed to address those issues : it is comparable to the weight of a paper carton, and make it...
Well this is not a true desktop computer tip but is one of those great lists that we always like to read. By the way if the link does not open for you then hold down your ctrl key (you know the bottom left key on the keyboard.
Top 15 Ways to Extend Your Laptop’s Battery [...]
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