Condensation Inside Sphero SPRK+
Condensation (water droplets) inside Sphero SPRK+ may occasionally form - this is normal, and you do not need to worry. This sometimes happens during the second half of the charging cycle or during heavy use when the robot can heat up. The condensation is caused from the heat inside the robot generated by the motors combined with a cold outside environment, and this temperature difference can result in water droplets condensing as a result of natural humidity trapped inside the ball. The condensation disappears once the temperature inside and outside the robot get closer together.
Condensation inside of Sphero SPRK+ poses no safety or failure issue, nor has it affected the performance of the robot during our extensive testing. Wheel slippage may occur in extreme cases when moisture inside collects and the wheels hit it just right.