5 XF 95 series Charging batteries BATTERIES 2. CHARGING BATTERIES 2.1 GENERAL - A battery may only be charged using DC current. Connect the positive pole of the battery to the positive terminal (+) of the charger and the negative pole of the battery to the negative terminal (--) of the charger. The cell sealing plugs may remain on the battery during charging (except during fast charging). During charging, the cell voltage will rise. This increase in voltage depends on the charging current applied and the temperature. During normal charging, the cell voltage will rise from about 2 volts/cell to about 2.65 volts/cell.
If a charging voltage of about 2.35 to 2.4 volts/cell (about 14.2 volts in a 12V battery) is exceeded, this will start off active gas development. As a consequence of the rise in voltage during charging, the charging current will, as a rule, fall gradually. Overcharging will reduce the service life of a battery. 4 - If the charging of the battery is continued after it has been fully charged (even with a low current), this will lead to corrosion (corrosive attack) of the grids of the positive battery plates. This type of wear leads to premature redundancy of the battery. Depending on the capacity of the charger, the normal charging time is between 8 and 15 hours.
If during charging the temperature of the battery acid rises to more than 55 C, the charging should be stopped. High temperatures reduce the service life of the battery. 200303 2-1