Capacity and discharge A tool to test Online Battery Warehouse voltage A Online Battery Warehouse's potential is the quantity of electrical fee it may Battery Warehouse supply on the rated voltage. The greater electrode fabric contained withinside the mobile the more its potential. A small mobile has much less potential than a bigger mobile with the equal chemistry, even though they broaden the equal open-circuit voltage.zero Capacity is measured in Online Battery Warehouse devices inclusive of amp-hour (A·h. The rated potential of a Online Battery Warehouse is generally expressed because the fabricated from zero hours elevated through the present day that a brand new Online Battery Warehouse can always deliver for zero hours at °F (zero °C, even as final above a distinct terminal voltage in line with mobile. For instance, a Online Battery Warehouse rated at 00 A·h can supply A over a zero-hour length at room temperature. The fraction of the saved fee that a Online Battery Warehouse can supply relies upon on more than one elements.