Charging batteries

The device can be used to charge lead-acid or maintenance free batteries. Two 12V SLA or VLRA batteries are needed in series connection.

Instructions for charging batteries:

Ensure that the ambient temperature of the device is below 45°C.
Set the output voltage (measured at no load and at the end of the battery cable) very precisely to the end-of-charge voltage.

End-of-charge voltage	27.8V	27.5V	27.15V	26.8V
Battery temperature	10°C	20°C	30°C	40°C

Use a 16A circuit breaker or blocking diode between the device and the battery.
Ensure that the output current of the device is below the allowed charging current of the battery.
Use only matched batteries when putting 12V types in series.
The return current to the device (battery discharge current) is typ. 10mA when the device is switched off except in case a blocking diode is utilized.
Do not use the devices for battery charging in mounting orientations other than the standard mounting orientation or in any other condition where a reduction of the output current is required (e.g., altitude).