SL2000-112 Manual

4-1-5. Equalization Charging

The intent of this charging procedure is active between abs and final is to remove sulfation that formed as a

result of the batteries being undercharged.

Another objective is to bring all cells to an equal state of charge. While Equaliztion charging，the charge voltage

increase to 14.1V continue a cycle is 240 minute(automatic shutdown). During equalizing charge, check the

changes in the SG reading every hour and disconnect the charge when the gravity no longer rises. This is the

time when no further improvement is possible and a continued charge would have a negative effect on the

battery. The frequency of the equalizing charge is something that each battery manufacturer differs on. For

example, some will recommend be applied every month or every ten cycles, while another will recommend

every six months or every 20 cycles.

4-1-6. Temperature Compensated Charging

The unit is delivered with a battery temperature sensor (BTS). By installing this battery temperature sensor the

charge voltages are automatically adapted for deviating temperature.

With a BTS installed, if the temperature around the BTS is below 20°C the absorb and float charge voltage

increases, If the temperature around the BTS is higher than 20°C, the absorb and float charge voltage

decreases. See Fig. 11 to determine how much the charge voltage changes (increases or decreases)

depending on the temperature reading of the BTS. For example, the nominal absorb charge voltage for a

flooded battery at 20°C on a 12-volt model is 14.6 VDC. If the battery temperature is 35°C, the absorb charge

voltage would decrease to 14.225 VDC (14.6 VDC - 0.375 change). If the temperature sensor is NOT installed,

the charge voltages will not be automatically adjusted by temperature, but will be maintained at a temperature

of 20°C. The life of the batteries may be reduced if they are subjected to large temperature changes when the

BTS is not installed.

Fig. 11

：

Temperature compensation using BTS