Homemade battery charger desulfator,how long car battery last with radio on,battery life galaxy s3 4g,walmart auto battery 124r - How to DIY

There are many situations when a DIY emergency cellphone charger would save the day> Well, if you have access to a few cheap parts (say, from a local Radio Shack store) you could be making that all important phone call in no time. To rig your emergency charger you will need, a few AA batteries, a four AA battery tray, two wires (red and black), two alligator clips, and a paperclip. The first thing you should do is check the voltage on your phone battery, most run at 3.7 volts, however it is extremely important to double check this as it will let you calculate how many AA batteries you need. As an extra safety precaution, you could connect your clips to a voltmeter to confirm that you batteries are providing the correct voltage. Make sure the clips don’t come into contact with each other, otherwise the whole thing will short circuit.
Since this DIY rig is in its most stripped down form, there is nothing to limit the current, or stop it from over heating. This hack can charge any cellphone battery, with the exception of the iPhone which can not easily be removed. Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Will Burrard-Lucas likes to photograph unsuspecting African animals with strategically placed camera traps.
Step 2: Mount the transformer and attach the line cordUse screws to mount the transformer on the plywood base. I miss the days when magazines like Popular Mechanics had all sorts of DIY projects for making and repairing just about everything. The hack will also work with a number of different devices – some devices may require more batteries, larger C or D cells or a larger battery tray, but the process is basically the same – see the guide below.
The Fire Piston, This, The Solar Scorcher, are just examples of some things I’ve created myself. For his latest project, the wildlife photographer sought to capture images of nocturnal animals as they conduct their affairs at night, and the results are spectacular. Because only 3 batteries are being used, the paper clip serves as a handy switch to complete the circuit. The phone battery will have a series of metal contacts, so look for the two symbols pointing out the + and – contacts.

You should also keep your eye on the battery to make sure it doesn’t get hot – if it does, unplug the battery ASAP. At 2.25am Monday local time, Singapore Airlines flight SQ368 took off for Milan, only to turn around hours later due to engine oil warning, according to the airline. But as soon as the plane touched down at Changi Airport in Singapore, passengers were greeted with this hellish scenario. In that case, the dome light will remain on all night and the battery will be very low in the morning.I made this charger when I ordered some electronic parts and received a 120 to 12 volt AC transformer with center tap.
A robotic submersible captured the first-ever footage of a great white taking a nap, and you can see it innocently catch some zzzs with its mouth hanging wide open.
Some friends have also borrowed it when their batteries were dead and it worked for them.The center tap allowed the output to be either 6 or 12 volts.

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