Before the test, we defined practical requirements and the following test criteria:
- Battery performance
- Safety and security
In order to evaluate these criteria, we have defined several tests for the cordless drills. In the test different boards of different thicknesses are drilled through. Meanwhile, handling, operation and safety are checked. In addition, the volume is measured and the ergonomics are evaluated. For safety reasons, the devices are tested for automatic shutdown in case of overload. In order to test the battery performance, the time for charging and discharging the drills was measured.
All our test products have to drill through the same wood types and board thicknesses.
In order to avoid mistakes and to ensure the load of everyday use, each test takes place in several runs.
The test criteria are given percentages depending on their importance. The final score is then objectively calculated from the test criteria using an algorithm.
Our product selection is based on observation of the current market. In addition to popular branded products, we also include insider tips in our selection. Criteria such as price and functionality are an important factor for us. The test field is determined by analysis and evaluation of customer reviews and external tests (e.g. Stiftung Warentest).
The devices are purchased anonymously or lent to us by the manufacturer. Retailers and manufacturers have no influence on the tests and our evaluation.
As soon as new relevant products come onto the market, our test field is extended by them. The new products are tested in the same way as the already tested devices.