It is good that the battery during pick-up tool creates with LED is already installed. Do not know whether and how they should be replaced.
The LED will turn on the head activated. When you switch to turn back not too far otherwise the lid falls off.
Here is an info to magnetic force, if that's important:
Quote: "Chilitec 19119 telescopic pick-up tool with LED [...] help you when picking up metal parts up to 3.2 kg in weight!"
Creates in my 1.25kg steel weight plate. The 2,5Kg disc can indeed raised above are not taken!
Quote: "Chilitec 19504 telescopic pick-up tool [...] help you when picking up metal parts up to 2 kg in weight!"
The 1.25kg disc can be recorded. The 2,5Kg can not be raised or added.