Can You Use 18v Batteries in a 12V Drill: What You Should KNow

Can You Use 18v Batteries in a 12V Drill

Many people wonder if you can use 18v battery in a 12v drill. The answer is yes, but there are some things to consider before doing so. Read on for more information!

How Can You Use 18v Batteries in a 12V Drill?

When using an 18v battery in a 12V drill, the following should be taken into consideration:


The voltage of the 18v battery should not exceed 12-volts. If it does, there are two possible outcomes. First, the battery will not last as long. Second, it may damage or even ruin your drill.

A 12V drill will not have much power when compared to an 18v or higher voltage. However, it is advisable that you check with the manufacturer if your specific drill model has special features that allow for an input voltage greater than 12-volts.

Battery Type/Chemistry

Not all types of batteries are compatible with each other.

For example, nickel-cadmium (NiCad) and lead-acid are different chemistry types. They should not be used together because this may cause them to discharge quickly and damage one or both of them, resulting in shortened lifespan and more frequent replacement costs.

NiCad cells produce around 20% less energy per charge cycle than their newer counterparts: nickel-metal hydride (NiMH).

Battery Capacity

When using 18v batteries on a 12V drill, you should always take into consideration the battery capacity. If your voltage does not match up with your drill’s requirements, it may lead to overheating and reduce the lifespan of both batteries.

For example, an 18v battery has around twice as much power as a 12V one which means that if run at full speed for too long will cause damage to both device and user alike since they can overheat and even explode due to excess heat buildup.

However, suppose you are careful to choose the right 18V drill and use it responsibly by limiting its usage time on high power. In that case, you will be able to enjoy the benefits of having a more powerful drill compared to your old 12v model.

This blog post is for informational purposes only. It does not replace or supersede any manufacturer instructions or specifications for using 18-volt batteries in 12-volt drills.

Users should always check with their manufacturers before attempting this practice, as some discrepancies may still exist despite these general guidelines being followed closely.

Now that you know how to use 18v batteries in a 12V drill go out and get your own! We also recommend reading our blogs on drilling a hole in a file and drilling through bulletproof glass.



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