Denso BHT-1261QWB-CE Operator's Manual page 20

5
Load the battery in the direction shown by the
arrow.
6
Close the battery cover and return the battery
cover lock to the original position.
Point
The end of the battery pull tape must not come
out of the edge under the battery cover.
7
Return the hand belt to its original position.
Battery pull tape
（2cell battery only）
Terminal