Brain Test 4 Level 30: We need a cleaner energy for this robot.
Brain Test 4 Level 30
Screenshots

Quick Answer
Wash the dirty battery under the tap, then insert it into the robot.
Skills Tested
Step-by-Step Solution
- 1) Find the dirty battery near the robot.
- 2) Drag the battery under the tap.
- 3) Let the water wash it clean.
- 4) Insert the clean battery into the robot.
Hint
Reveal a hint
The battery just needs a wash. Clean it under the tap before using it.
Why It Works
The level plays on the double meaning of clean. Washing the battery under the tap gives the robot the cleaner energy it needs.
Frequently asked questions
How do I solve Brain Test 4 Level 30?
Wash the dirty battery under the tap first, then insert the cleaned battery into the robot to give it cleaner energy.
What is the answer to Brain Test 4 Level 30?
The answer is to rinse the dirty battery under the tap and then place that battery into the robot.
What is the trick in Brain Test 4 Level 30?
The battery must be cleaned before it can be used. Washing it under the tap is the step that makes it work.
Why do I need to wash the battery in Brain Test 4 Level 30?
The robot asks for cleaner energy, and washing the dirty battery under the tap is what makes it clean enough to use.
Is there a video walkthrough for Brain Test 4 Level 30?
Yes. The embedded video shows washing the battery under the tap and then inserting it into the robot.
How do I avoid getting stuck in Brain Test 4 Level 30?
Do not insert the battery right away. Wash it under the tap first, then place the clean battery into the robot.