Xantrex Technology Link 2000 - Manual (Page 36)

B-1
B
Battery Charging
Appendix B describes battery charging in more detail.
Duracell® Charger charges batteries in a sequence known as
a three-stage charge. The charging voltage delivered to the
battery depends on the battery
The three automatic stages are:
• bulk
• absorption
• float
There is a fourth stage, battery recondition (equalization),
that is initialized manually since it is only performed
occasionally and only on a flooded battery.
Bulk Charge
In the first stage, known as the bulk charge, Duracell®
Charger delivers its full- rated output current.This constant
current is delivered to the batteries until the battery voltage
approaches its absorption voltage—typically around
14.5 volts. The bulk charge stage restores about 75% of the
battery’s charge.
Absorption Charge
During the absorption charge, the charging voltage is held
constant near the gassing voltage, and the battery gradually
reduces the charging current it demands as it attains full
charge. Once the current drops to around 1/6 of the charging
current in bulk charge mode, the charger exits to Float charge
mode.
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