— powered by a built-in battery allows you to work regardless of the presence of nearby outlets, which in some situations is critical. In addition, the cordless tool does not have a power cord, which can cause problems during operation. On the other hand, this type of power does not allow you to create more or less powerful units — they would need too heavy and bulky batteries. Therefore, cordless rotary hammers have little power, while they are much more expensive and weigh more than similar models with mains power. In view of all of the above, it is worth paying attention to this type of tool if battery life is crucial for you.
