Below: Model B+ or RPi 2B Battery Holder Mounting
Now use 2 4mm countersunk screws to fit the battery holder into position, screwing into the
5mm male-female pillars that hold the Pi. For the Model B, the battery holder is mounted as
shown above. For the Model B+ it is mounted cross-wise near the rear of the unit and offset,
to allow access to the 6-pin I2C breakout header
Fit the red wire from battery holder into the position nearest the switch - marked VBAT. The
black wire goes into the position next to the motor.