How To: Turn a C cell battery into a D cell battery
Your Flashlight battery are DEAD!! You have C batteries available. We will show you how to use them as D batteries. Turn a C cell battery into a D cell battery.
Your Flashlight battery are DEAD!! You have C batteries available. We will show you how to use them as D batteries. Turn a C cell battery into a D cell battery.
Change a normal 9v battery into a life saver. If you have ever run out of juice on your phone and could really use a quick charge then you need a USB battery.
Use a universal cell phone battery charger to boost your batteries on the go, no matter where you are.
Interested in getting 1.5-volt button cell batteries for pennies on the dollar? Kip Kay, of Make Magazine, is here to show you how. The trick is to buy Energizer A23s, each of which contains 8 1.5-volt button cells. For detailed instructions on this straightforward money-saving hack, take a look!
So you're on a trip and you forgot to bring a cell phone charger. Don't want to spend 30 dollars, but need to have your cell phone on? This video will teach you how to charge your mobile phone with regular batteries. All you will need are: a charger plug, resistor 2, cell phone, and 4 AA batteries AA.
Tired of always having to charge your phone? Don't want to pay for an expensive upgrade? This tutorial shows you how to get the most out of your phone's battery life. Make sure your data and Internet features are under control, those will suck the most juice.
What's the first thing you would do once you realized you were lost in, say, a desert? If you're like me, you would immediately pull out your cell phone and start dialing every number. But what if you have no service? What if your battery is dead?
Leaving your Wi-Fi radio "on" allows your smartphone to auto-connect to trusted wireless networks in lieu of using cellular data, but it also consumes battery power while it's constantly network hunting.
Battery life on all cell phones is a problem. There isn't a cell phone on the market today that can satisfy everyone's power needs, but there are a few tips and tricks to making sure you have total control of your battery's lifespan on Droid smartphones.
If you're tired of replacing the batteries on your remote control and you would rather have the TV remote charge by itself, grab a few solar cells, rechargable batteries, and a few extra odds and ends. With this mod to your remote, you can let light charge your remote and never buy another battery for it again!
Battery life is a constant problem with cell phones today, and the Droid smartphones running Android software are no exception. If you want to learn how to get the most out of your Droid battery, then check out this helpful video that provides 8 tips on cutting battery-eating apps and features. If you want more battery life and are willing to sacrifice the cool features of the Droid cell phones, then you have to do these things. Don't let you Droid battery get drained!
Watch this three-part series on how to assemble battery cells for your radio controlled vehicle. First, see what is needed to assemble cells and to get them glued.
When you think of robots, you probably think of things that have more than three parts. Not this robot! If you want a robotics project to try that doesn't require an MIT degree, watch this video for instructions on how to build a 'Dizzy Robot' out of only some thin tin, a pager motor, a button cell battery, and this template.
Find out how to use a six volt lantern battery to really save you money. This is no con, or prank, or joke that involves 32 AA batteries; this is the real deal. Just watch this money saving video tutorial to see how to hack a six volt battery. You can easily replace a few of this cells, which are equal to 3 D batteries, which can be used inside of your Maglite flashlight. Don't let that 6 volt battery go to waste after buying it for the other false hack, use them in any way you can, like this...
Here is the safe way to disassemble the Dewalt 36V A123 battery pack -- WITHOUT BLOWING THE BMS (metal covered circuit on top of cells) to use the cells with an electric bike or whatever.
Sometimes the best way to hide things is in plain sight. Whether you're trying to sneak some medication past security at a concert with a zero-tolerance policy, or you're just worried that maybe Omar comin', YouTuber MrGear has a clever way to put your mind at ease.
Those old cell phone and laptop batteries staring you in the eye? Don’t worry, recycling them is easy.
In this tutorial, we learn how to save a cell phone after dropping it into water. First, dry the phone off as soon as it gets wet then remove the battery and SIM card if you have one. Now, dry the crevices and all small areas of the phone with a towel. Once you have dried the phone out completely, let it set for over a day and it should work again. If it still doesn't work, charge the phone without the battery in it. If the phone works, you just need a new battery, not a new phone.
Learn about the history and technology of batteries in this informative video, and learn how to make your own voltaic cells at home, along with other scientific experiments. Jeri Ellsworth demonstrates how and provides several informative facts about the history and technology about the battery.
Watch this science video tutorial from Nurd Rage on how to make copper sulfate and zinc batteries. They show you how to make the classic copper sulfate and zinc battery using the incredibly easy "gravity" battery design approach. Great for science fairs and similar projects this battery can be used to explore many basic concepts in batteries.
From Systm learn how to build a USB battery supply that can charge your cell phone.
In the perpetual search for a renewable and convenient energy source, our bacterial friends have once again stolen the limelight.
Power the clocks at your home with the sun! With a solar cell that costs around $5, you can convert a clock to solar power and avoid buying batteries or running up the electric bill. Instead, connect a rechargable battery to the solar panel with a few wires and some adhesive and soon you'll have enough energy to power your clock for as long as it lasts.
An emergency battery charger for your mobile phone comes in handy, but it's not the ultimate solution; once it's dead it's useless (what a waste). If you want to really get off the metaphorical grid, you can follow the steps in this video to construct a more robust circuit that will not only bail you out of an inconvenient situation but also recharge in between uses. The simple addition of a low voltage solar panel and rechargeable batteries makes this possible. Enjoy!
This is a recording of a class lecture on Voltage Sources. The first part describes how mechanical friction can generate voltages.
"What is dead may never die." That's easily one of the best lines (and episode title) from HBO's Game of Thrones series. While the saying may ring true for the Ironborn, it's not quite as catchy when it comes to batteries.
Watch this science video tutorial from Nurd Rage on how to make a lithium thionyl chloride battery, which is capable of generating 2.8v with enough current to power a LED.
In this tutorial, we learn how to make Splinter Cell prop goggles. You will need: goggles, a saw, pipe, a brush, black paint, duct tape, batteries, chop sticks, glue, a ruler, and a pen. First, mark three cuts on the pipe to 3 cm and 5.5 cm. Now, use the saw to cut these. Then, use sandpaper to smooth all the edges. Next, place these onto the goggles and glue them with a hot glue gun. Next, grab two batteries and wrap them in duct tape. Place these with them and then paint these all black. Af...
Ever wanted to know how to make a fire with your cell phone? All you need is a cell phone, a brillo pad, and material for tinder. First take the battery out of your phone and find the positive and negative contacts on the bottom of it. Next tear off a chunk of the brillo pad, roll it up until you have a twisted piece about an inch long. Bend the steel wool over and touch an end to the positive and the other end to the negative contacts on the battery. That causes the steel wool to smolder--no...
The trick in the video is that the magnets are made of a conducting material and they connect the battery terminals to the copper wire, so the battery, magnets and copper wire make a circuit that generates a magnet field just in the vicinity of the battery. The geometry means the two magnets are automatically at the ends of the generated magnetic field, where the field is divergent, so a force is exerted on the magnets.
Today's Tech shows you how to fix a cell phone or computer that has gotten wet or jammed. With a wet cell phone, you must act quickly or it may be permanently damaged. The first thing you should do after pulling it out of the water is to take the battery and SIM card out. Dry both of them off. If you drop it in a liquid that is not water, rinse them off quickly. If you have a vacuum cleaner handy, you can use it to suck the water off. You can also place the phone on top of your cable box. Wai...
If you're a geek, then this power pack will give you a total techgasm. The power pack allows you to charge pretty much anything you can fit into a 12 volt power jack in your car (where the cigar/lighter receptable goes). The power pack is a portable battery, so no need for charging your gadgets - like your cell phone - at home first before you head off to work.
Secretly shoot your voice across the room in stealth mode on a laser beam in this fun and easy project! Make Magazine and Kipkay present this cool spy trick. Build a simple laser communicator that transmits your voice across a room. You need an amplifier, radio, laser pointer, battery pack and a solar cell.
Use a cell phone, batteries, CD, card, tape, and a dime to make a playing card magically jump.
For some homeowners, having a backup battery for their sump pump is important for making sure a loss of power doesn't cause a flood in the basement. And if you have yourself a standard new Basement Watchdog sump pump battery backup, before you can use it, you have to fill it up with the right amount of fluid. These batteries do not come with the fluid already inside, because it lessens the life of the battery. This video will show you the precautions and methods you should take in filling eac...
What if you could have a secret hard drive connected to your computer that only you could activate? You can! Samimy shows you how to hack a remote controlled toy car and make a super secret hard disk drive in your computer, accessed via a secret activation key. This hidden emergency HDD can only be controlled by your key, regardless of how many people use your computer.
The archenemies of cell phones— puddles, toilets, swimming pools— can cause serious damage to your gadgets. And if your mobile phone has taken the dive, don't panic— there's hope for recovery.
Having problems with your Rubik's Cube stickers? Are they keeping you from solving that cube super fast? Well, learn how to take off Rubik's Cube stickers and clean the gunk. You can easily take off those stickers with a cell phone battery cover, then use a little Tide-to-Go Instant Stain Remover to not remove stains, but to remove the leftover sticky crap on your Rubiks Cube.
The new Android enabled phones can take up a bit of power, so knowing the best way to manage your power settings is crucial in having a fully-charged cell phone all the time. The biggest key is making sure your screen brightness isn't more than it should be. Best Buy has answers. The Best Buy Mobile team explains how simple it is to adjust screen brightness to save battery life on an Android cell phone.
Cell phones companies are constantly claiming to have the best service in town; but more often than not your service will be patchy. Check out this tutorial for information on how to boost your phone's signal and get the best reception.