The Battery Li-Polymer 3.7 V #A-9920-0330 is a high-power rechargeable lithium battery (three batteries are supplied with each XR20-W).
(A-9920-0330) Battery Li-Polymer 3.7 V
$110.00
A-9920-0330 | XR20-W rotary axis calibrator and components| Battery Li-Polymer 3.7 V | Renishaw