If you’ve ever found yourself with a Dewalt lithium-ion battery that simply refuses to charge, don’t worry - we’ve got you covered. In this article, we’ll show you a simple fix that will reset your battery and get it back to accepting a charge in no time.

Lithium-ion batteries, like the one from Dewalt that we’ll be focusing on, can sometimes become completely depleted and need to be reset in order to begin recharging. It’s similar to a golf cart that has been left without charging for several days - the individual cells need to be charged separately before the battery as a whole can begin to recharge. This easy fix will give your battery a jump start, allowing the charger to recognize it again and start the charging process.

To begin, you’ll need a fully charged battery to use as a reference. Both the depleted battery and the fully charged battery have positive (+) and negative (-) terminals located near the charging ports. We’ll be using speaker wire to transfer some energy from the fully charged battery to the depleted one, initiating a reset.

Here’s a step-by-step process to get your Dewalt lithium-ion battery back in action:

  1. Gather your tools: Grab a fully charged battery and a couple of pieces of speaker wire. Make sure to handle the wires with caution, as there is a risk of electric shock.

  2. Identify the terminals: Locate the positive (+) and negative (-) terminals on both batteries.

  3. Connect the wires: Take one end of the speaker wire and connect it to the positive terminal (+) of the fully charged battery. Then, connect the other end of the wire to the positive terminal (+) of the depleted battery. Repeat this process with another piece of speaker wire, connecting the negative terminal (-) of the fully charged battery to the negative terminal (-) of the depleted battery.

  4. Transfer power: Hold the wires in place for a few seconds, allowing the energy to transfer from the fully charged battery to the depleted one. Be careful during this step, as electricity is involved.

  5. Test the battery: After transferring power, disconnect the wires and try charging the previously depleted battery. Place it in the charger and see if it now registers as a chargeable battery.

During the test, you may find that the fully charged battery immediately starts charging, while the previously depleted one still shows no signs of life. This is normal, as the depleted battery requires enough energy for the charger to recognize its presence. However, after applying this quick fix, the charger should now detect the battery and begin the charging process.

Lithium-ion batteries, including those from Dewalt, need to be managed carefully. Similar to the discharge of all the batteries in an electric golf cart, completely discharging all the cells in a lithium-ion battery can render it unchargeable by the charger. It’s important to charge each cell individually until there is enough charge for the charger to register the battery and initiate the charging process.

By following this reset method for Dewalt lithium-ion batteries, you can restore your battery to its former glory and ensure that it charges efficiently moving forward. Remember to exercise caution when working with electricity and always prioritize safety.

Good luck with your battery revival, and happy charging!