Proface APL3000B - Node Box PC - Manual (Page 147)

PL3000 Series Hardware Manual
7-8
Avoid leaving the battery in high temperature places such as direct sunlight, inside a sun-heated car, near water, or
near a heater. Doing so may cause battery leakage, or reduce the battery functions and lifetime.
The battery can be recycled. To recycle your used battery, follow the regulations and instructions in your area.