Hitachi WT-1 User Guide - Page 17

StarBoard WT-1 Usage Procedures 2.2.3 Changing the battery in the Stylus pen The stylus pen contains a single AAA alkaline battery. If the pen begins to operate erratically (e.g., if pen input is cut off), change the battery as described below. Note that battery life is approximately 1680 hours under normal usage. NOTICE Be sure to orient the battery correctly. Do not reverse the + and - terminals of the battery, and use only the specified type of battery. Otherwise, it will overheat and fail. When changing the battery, be careful not to close the pen's rear part too forcefully. If too much force is applied when closing the rear part of the stylus pen, the pen may be damaged. (1) Turn the stylus pen grip to separate the two halves. (2) Remove the AAA alkaline battery contained in the grip, and insert a new cell with the positive end facing the pen tip. + 2-6 English