Lamar Technologies CA 1550 - Manual (Page 21)

4. OPERATING GUIDE - DISCHARGING
4.5.1 LEAD-ACID BATTERIES
Always refer to your battery manufacturer's maintenance manual for the most
accurate information. For a 24 volt sealed lead-acid battery the cutoff voltage is
usually set at 18 or 20 volts when discharged one hour at a current equal to the
80% of the battery’s C 1-rate. See Table 4- 2 for examples of discharge test
settings for sealed lead-acid batteries.
Table 4- 2. Discharge test setting for sealed lead-acid batteries
4.5.2 NICKEL-CADMIUM BATTERIES
For nickel-cadmium batteries the cutoff voltage should equate to an average of 1
volt per cell, when discharge tested at a current of approximately 80% of the C 1 -
rate. For a 24 volt/10 ampere-hour battery with 19 cells, the cutoff voltage would be
set to 19 volts when discharging at 8 amperes (see Table 4- 3).
CA-1550 CHARGER / ANALYZER - OPERATING MANUAL V1.2 Page 19