characteristics of battery-charger for use with battery-powered rescue-devices

purpose

The battery-charger is used to charge sealed lead acid accus used with battery-powered rescue-devices. A microprocessor monitors charging voltage and current.

general

• low-voltage detection (mains)
• low-voltage detection (Accu)
• over-voltage detection (mains)
• over-voltage detection (Accu)
• charging current with I = 0,1 x C_Accu
• trickle charge with I = 0,025 x C_Accu
• self-test at power-on and after low-voltage or over-voltage detection
• self-monitoring for proper function
• fault indication with LED and a free relay contact
• during fault condition, the accu is disconnected via a power contactor