Renew power tool batteries

Although I have Dewalt battery I have used this method to fix other makes when the battery will not charge. So, in future, if you have a dead Nicd power tool battery try this first before buying new. Question 2 years ago on Step 1. By JPinFuerteventura Follow. More by the author:. Did you make this project? Share it with us! I Made It! If the performance has improved, then the reconditioning process is a success. However, if the performance is the same, you may have to do the reconditioning process for a couple more times.

Once the performance has improved, you can do the process again after one month. Remember to do it only once a month because the discharging and recharging can strain the battery and can damage it completely. Check the status of your power tool battery month by month. If it continues to deteriorate, you can assume that the battery has already exceeded its limit in terms of its lifespan and you may have to start looking for a new battery for your power tools.

This process of refurbishing is just one of the many ways to revive an old power tool battery. You can also check the manual of your power tool or battery as it may have information about the best way to restore it. Remember to check the casing of the battery to see if there are any cracks or damage. If it has, it is best to dispose of it and purchase a new battery. With this new battery, you now know how to better take care of it through reconditioning.

Before you do anything else, check the battery if there are any leaks, cracks, or damages. Simply dispose of it according to the environmental laws of your city or state. Tweaking a damaged battery can result in an accident, and we want to avoid that as much as possible when handling our power tools and batteries.

When a lithium-ion battery is over-drained, its protection circuit turns it off, making it dysfunctional to be used, or recharged by the charger. This may happen due to overuse or leaving the battery for too long on the charger. For example, using an impact wrench for too long can drain the battery voltage so low that the charger would fail to recognize the battery for charging. Here are a few methods of reviving lithium-ion batteries that appear completely dead.

For example, your 18V impact driver with a Makita 18V lithium-ion battery has stopped working. When you put the battery on charge, the charger renders the battery unserviceable. In this case, you can take another 18 V battery does not matter what brand it is , and connect the batteries with the help of metal clips. Make sure the positive end is connected to positive, and the negative end is connected to the negative end. It can be dangerous if they are not connected in the proper order.

Once they are connected, the voltage of the dead battery raises. You can then disconnect the batteries and connect the battery to the charger to check if it is being recognized by the charger. One most important point to remember if you own a power tool that runs on the lithium-ion battery is that never completely discharge the battery.

A completely drained lithium-ion battery cannot be recharged by the charger. Sign in Sign up. We've sent you an email with a link to update your password. No account yet? Create an Account Login. Menu Categories. Enegitech Power Tools. Power Tool Accesories. Household Batteries.

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