BBM supplies the 10XHHR450A#29 Battery for the Verituner 100, Piano Tuner. Delivering 12V/4500mAh of power, this pack will keep your Tuner fully functional.
Verituner 100 Battery Specifications:
Dimensions - 90mm x 19mm x 132mm
Voltage - 12V
Capacity - 4500mAh
Chemistry - NiMh