How to Repair and Rebuild a Cordless Battery

How to Repair and Rebuild a Cordless Battery

Learn how to repair and rebuild a malfunctioning cordless battery with these simple, step-by-step instructions, saving you time and money.

A cordless battery, also known as a nickel-zinc battery, is a rechargeable battery used in cordless tools and devices such as battery-powered garden tools, cordless phones, digital cameras, electric bikes, and many other applications. It is very efficient and can last a really long time. Currently, only AA battery cells are available on the market. The advantages of using this innovative power source include a longer lifespan, a lighter weight, and greater durability and reliability compared to regular batteries. It also has an open-circuit EMF of 1.6 volts, making it just as effective as alkaline-celled batteries. It can truly save you both money and energy. If, for some reason, your cordless battery suddenly stops working, you do not need to fret or worry; there is a solution. You can actually repair and rebuild it on your own! To learn how to do it, here are some helpful tips to consider and follow.

1. The first thing you need to do is to determine the positive and negative sides of your busted battery. If you are uncertain, it is advisable to use a voltmeter to accurately identify the negative and positive terminals. If you do not have a voltmeter at home, most batteries usually have a gold color for the positive side, while the negative side is silver.
2. As soon as you are done, get two 12-volt car batteries. Connect the negative cable to the positive side of your battery, and the positive cable to the negative side. This is a safe procedure, so you do not have to be concerned about causing further damage.
3. Since you now have a 24-volt system, you are ready to charge your battery. You will need to zap it a couple of times. You can easily do this by continuously transferring electricity in short intervals for at least 9 seconds if you are using a 12-volt battery. For a 24-volt setup, repeatedly do this for 11 seconds.
4. When you are finished sending instant shocks to your cordless battery, let it cool off for at least 25 minutes. Next, recharge it by placing it on its own charger for 20 minutes. Make sure you time it, as overcharging can cause more damage.
5. After you are done charging, remove it from the charger and let it sit for one hour. You can then test it by checking if it is charging properly. Double-check the light indicators to be sure. If it is still not working, repeat these steps by shocking it several more times until you have completely revived your previously broken battery.

It is very easy to fix your cordless battery. Just remember to allow 25 minutes of rest time before continuing the zapping process. Always be mindful of the allotted time, and make sure that you do not overdo the charging. It is extremely important that your hands are completely dry before you start the repair. All you have to do now is follow these simple steps, and you will soon be able to use your cordless battery again.