Avoid over - discharging batteries, especially when they are in series connections.
Charge the batteries with recommended voltages, ensure the battery can be fully charged.
Generally, recharge capacity should be 1. 1 1. 5 * The discharge capacity.
The effect of temperature on cycle charge voltage: - 4 mv/ °C/ cell.
Length of Cycle services is significantly affected by depth for discharge (primarily), along with ambient temperature, discharge Rate, and the way the battery is recharged.