Product Description Adaptive 4-stage charge characteristic :bulk . absorption . float . storage The Phoenix charger features a microprocessor controlled .adaptive. battery management system that canbe preset to suit different types of batteries. The .adaptive. feature will automatically optimise the processrelative to the way the battery is being used. The right amount of charge: variable absorption time When only shallow discharges occur (a yacht connected to shore power for example) the absorption timeis kept short in order to prevent overcharging of the battery. After a deep discharge the absorption time isautomatically increased to make sure that the battery is completely recharged. Preventing damage due to excessive gassing: the BatterySafe mode (see fig. 2 below) If, in order to quickly charge a battery, a high charge current in combination with a high absorption voltage has been chosen, the Phoenix charger will prevent damage due to excessive gassing by automatically limiting the rate of voltage increase once the gassing voltage has been reached (see the charge curve between 14,4 V and 15,0 V in fig. 2 below). Less maintenance and aging when the battery is not in use: the Sttorage mode (see fig. 1 & 2 below) The storage mode kicks in whenever the battery has not been subjected to discharge during 24 hours. In the storage mode float voltage is reduced to 2,2 V/cell (13,2 V for 12 V battery) to minimise gassing and corrosion of the positive plates. Once a week the voltage is raised back to the absorption level to .equalize. the battery. This feature prevents stratification of the electrolyte and sulphation, a major cause of early battery failure. To increase battery life: temperature compensation Every Phoenix charger comes with a battery temperature sensor. When connected, charge voltage willautomatically decrease with increasing battery temperature. This feature is especially recommended forsealed batteries and/or when important fluctuations of battery temperature are expected. Battery voltage sense In order to compensate for voltage loss due to cable resistance, Phoenix chargers are provided with avoltage sense facility so that the battery always receives the correct charge voltage.