![]() Dewalt is famous for its warranty on products. If they can’t fix it, they will provide you with a new one. They will try to figure out what’s wrong with the batter. If none of the above solutions works, you can try contacting Dewalt regarding the problem. Your battery should work fine once you insert it into the charger and charge it completely. You have jumpstarted your battery successfully. Hold the wire in the terminal for a few seconds. After connecting the second wire to the “-” side of the working battery, tap the other end of the wire to the “-” side of the faulty battery for one or two seconds.This time, connect the negative terminals of both batteries. Similarly, do the same with the second wire.Connect one end of one wire to the “+” of the working battery and the other end to the “+” of the faulty battery.You need another fully charged and working battery and two short wires.When you can’t figure out the problem, you can always jumpstart your Dewalt battery. If your batteries still have the problem, you can try some other solutions. Dewalt Battery Says Fully Charged But Not Working: Solutions Measure the voltage of:Īll of the voltages should be the same. Check the voltage of each individual cell.Use the thermistor again to measure resistance from B+ to TH.The voltage should be the same as that of B+ to B. Use a thermistor to check the voltage from B- to TH.First, measure the voltage from B+ to B- terminals.You can follow the below steps to solve the problem: Having damaged cells will prevent the battery from charging. To solve this, simply try changing the charger and see if the problem reoccurs. Faulty chargers are likely to kill your battery. If it’s really a charger problem, you shouldn’t try to keep charging the battery. If the charger is duff, Dewalt batteries will automatically shut off to protect themselves.Īlso, check if, on the Dewalt charger, there is a hot-cold delay. Often, the problem is not with batteries. This ensures that you have positioned the battery correctly. When you insert the battery into the charger, look for a “click” sound. Make sure your batteries are seated in the charger correctly. In reality, the batteries aren’t actually charging. The charger will show that your batteries are charging even if they aren’t positioned correctly. You may not have placed the battery properly in the charger.Įven if the problem is simple, it can cause you unnecessary hassle. Sometimes, the problem can be pretty straightforward. This should clear the dust in the terminals and solve the issue. Try to clean the terminals with a wire brush. The reason could be that the tools cannot connect properly to the battery. So, your impact wrench or saw might not work even if the battery is fully charged. Moreover, dust in the terminals can also hamper the connectivity of the battery with tools. If the terminals are dirty, the charger may not be able to connect to the battery. Dirty Terminalsĭirty terminals can be an issue with Dewalt batteries. Here are some reasons that might cause this problem: Reason 1. It can be frustrating when you’ve charged your batteries but discover that they are not working. Similarly, you can use a 120V battery on both 20V and 60V tools. That means you can use a 60V battery on a 20V battery. The cool thing about these batteries is that they are flexible. Their initial voltage and standard voltage according to different voltage batteries are shown below: Battery Voltageġ20V (based on 2 Dewalt 60V max lithium Ion batteries combined) Dewalt Batteries And Their Flexibilityĭewalt Batteries usually have three voltage varieties. You need in-detail information to learn more and a step-by-step guide to solving the issues. Another solution could be cleaning dirty terminals. However, you can solve this problem by jumpstarting the battery. Additionally, external factors other than the battery can cause this problem. For instance, dirty terminals, wrong battery position, etc. Various reasons can cause the Dewalt battery says fully charged but not working. ![]() One of the common problems is the charging issue with the battery. However, they are not perfect, and you might face different problems while using them. ![]() Dewalt batteries are prevalent and reliable for everyday use in different tools.
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