b'FOGHORN FOCUS Before beginning, youtery will be left unattended for a long time (trickle charge during inactivity), where there is a load on the battery and need to know what withlithium-ionbatteries.the total load is so that Three stage charging is a faster charge (Figure 3 on next page). The first part of the charge cycle is the same in two you can select an stage vs three stage where the current is held constant at the max output of your charger and the voltage is allowed to appropriately-sized rise. This time, we charge to a higher voltage and hold the voltage until the current drops off to five percent of the battery or battery bank(s),rated output of the charger and then we reduce the voltage back to the float voltage of the battery. If there is a load on charger(s), and wiring.the batteries during charging, its not a safe charge profile as there is a risk of overcharging if the detection point for reducing the voltage is missed. Its also not suitable for lith-maximum of the charger and the voltage is allowed to rise.ium-ionbatteries.Whenthevoltagereachesthepre-setvalue,wegotoafloator maintenance mode where the voltage is held constantWhendesigningyoursystem,thereareseveralimport-andthecurrentintothebatteryslowlydropsoff.Thisantconsiderations.Beforebeginning,youneedtoknowtype charge profile is good for applications where the bat- what the total load is (or what it will be to the best of your Figure 2BULK MAINTENANCE(CONSTANT CURRENT) (CONSTANT VOLTS)100%75%50%25%FIGURE COURTESY ANALYTIC SYSTEMS 0%TIMETWO STAGE CHARGERFOGHORN 12'