When the battery is low, the pen light flashes as you turn on the switch. When the battery runs out, the pen light goes out.
Caution: Use only the type of batteries specified in this manual.
1. Open the battery cover as shown.
2.Remove the old battery.
Warning: If the battery fluid has leaked, wipe it away with a soft cloth and avoid getting the fluid on your hands. If it gets on your hands, wash them immediately to avoid injury.
3.Insert the battery with the + and – ends facing as shown.
