<p><span style="font-size: 16pf; color: #000000;">A&nbsp;battery tester&nbsp;is an electronic device intended for&nbsp;testing&nbsp;the state of an electric&nbsp;battery, going from a simple device for&nbsp;testing&nbsp;the&nbsp;charge&nbsp;actually present in the cells and/or its voltage output, to a more comprehensive&nbsp;testing&nbsp;of the&nbsp;battery's&nbsp;condition, namely its&nbsp;capacity&nbsp;for accumulating&nbsp;charge. We supply battery capacity tester with calibration certificate.</span></p>