- Published in issue 7/1994 on page 42
Indicator for lead-acid battery charger
This unit is intended as an add-on for the many lead acid battery chargers that have no charge indicator. A green LED shows that the battery is connected with correct polarity. A red LED indicates that the battery voltage has reached its operatmg voltage, that is, the battery is fully charged. Ayel~ low LED functions as on/off indicator, that is,shows that the mains is connected.