Some cordless screwdrivers have a battery-level indicator which lets you know how much battery power the tool has left.
The location of the battery-level indicator will vary depending on the make and model.
What are the advantages of this feature?
Having a battery-level indicator on your cordless screwdriver is like having a fuel gauge on your car.
Knowing when the battery is about to run out means you can prepare for it, rather than being caught off-guard when the tool stops in the middle of a task.
The indicator gives you a good idea of how much battery power is being used when working with certain materials or bits.
For example, working with tougher materials and larger screws will use more battery power.