At times it may so happen that your cell phone battery is running very low and is likely to go off at any moment, but you're expecting a very important call or need to make one. However, for some reason you are not carrying any battery chargers to recharge your battery and it has become suddenly vital that you do so.
Most people would agree that cell phone batteries seem to be on their last bar or in serious need of a charge at the most inopportune times. Most likely, charging phone batteries is not on your list of things to do before going to bed. Well, put your worries and panic aside, there are ways in which you can charge your cell phone without using the accompanying cell phone charger, which comes as part of the kit. You are about to learn how to charge a phone without a charger, and you'll never miss a call due to a dead battery again!
Use your laptop battery. Use the USB cord which allows you to sync your cell phone with your computer and connect the phone to the laptop. Make sure to switch off the phone first. Once connected, the cell phone battery will charge itself by drawing power from the laptop battery. Simple, isn't it?
Using USB cables. Somewhat similar to the previous step, find a spare or old USB cable which is no longer required and cut-off the point which is not used to connect to the computer (the end where you would connect a USB-compatible device). You are now going to convert this cable to act as a cell phone battery charger in conjunction with your laptop.
Remove the casing. Using a pair of pliers or a sharp blade or knife, remove the plastic casing which covers the cable. Make sure to be careful not to damage the internal wires while cutting off the casing.
Locating the wires. Once the casing is off, you will see that there are four wires in the cord. Separate the red and the black wires from the remaining two wires. From the open end of the red and black wires, remove the insulation material covering the actual wires, as in the previous step.
Connect to the phone battery. Remove the phone battery from the cell phone case. Look for and locate the positive (+) and negative (-) indicators on the inside of the phone. Place the red wire at the (+) point and the black wire at the (-) point. Place the battery back into the phone, with the wires stuck in between the battery and the terminal points inside the phone.
Connect to a computer. Plug the USB end of the cable to your computer and allow the battery to charge from the computer power as in step one. You can charge your cell phone battery until you feel that it has been charged enough to complete your work. Once you get back home, use the phone charger provided for this purpose and recharge your battery fully for further use.
To avoid situations where you phone battery runs low and you don't have the charger close at hand, make sure that you charge your phone on a daily basis. This way, you will not be stranded without a charged phone. Use the methods discussed above, in extreme emergencies only and not too frequently.