A deep cycle battery is constructed in such a way that repeated discharging and recharging has much less of an adverse effect on the battery's life or performance, compared to that of a starting battery.

This is achieved by making the active material denser in order to withstand deep cycling. Specially designed glass mat separators inhibit the shedding of active material and protect the active material from being damaged due to vibration. deep cycle batteries are designed to deliver constant power requirements over prolonged periods of time - then being recharged without loss of capacity or damage to the plates' active material.

Selecting your deep cycle battery for your need