The L range has the thickest plates and is designed for applications where the battery is required to provide a reliable source of energy over relatively long discharge periods. Normally, the current is relatively low in comparison with the total stored energy and the discharges are generally infrequent. Typical uses are communications and bulk energy storage.

The M range is designed for applications where the batteries are usually required to sustain electrical loads for between 30 minutes to 3 hours or for 'mixed' loads which involve a mixture of high and low discharge rates. The applications can have frequent or infrequent discharges. The range is typically used in switchgear applications.

The H range used very thin plates and is designed for applications where is a demand for a relatively high current over short periods, usually less than 30 minutes in duration. The applications can have frequent or infrequent discharges. The range is typically used in starting and UPS applications.