©2000 Xantrex Technology Inc.
Table 8
Battery Voltage LED Indications
When battery voltage drops below the FLOAT setting for a cumulative
period of one hour, a new BULK cycle will be triggered. This typically occurs
each night. If the battery is full at the start of the day, it will receive an ABSORP-
TION charge for one hour and then be held at the FLOAT setting for the
remaining period of the day. Should the battery voltage drop below the FLOAT
setting for a cumulative period of one hour, another BULK and ABSORPTION
cycle will be initiated.
This three-stage charging process results in faster charging compared to
on-off relay type or constant voltage solid state regulators. Faster recharging
increases the performance of the system by storing more of the PV arrays limited
output. The final FLOAT voltage setting reduces battery gassing, minimizes
watering requirements and ensures complete battery recharging.
5.0 OPERATION
39
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Table 9
Typical Setpoints for Batteries
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