Battery Low Voltage Disconnection; Battery Current Limitation; Temperature Compensation; Battery Capacity - SLAT AESI 50 W Notice D'utilisation

5.4 Battery low voltage disconnection

The threshold is 21.6 V+/-3%.
The relay is located on +.

5.5 Battery current limitation

The battery current limitation is user adjustable according to the battery capacity, in order to ensure a battery
reloading between 0.1C and 0.3C as advised by the manufacturer. The thresholds are 25%, 50% and 75% of
the nominal current. Selection is made by 2 microswitches. The charging current default value is set at 75% of
the nominal current.

5.6 Temperature compensation

Thanks to a battery voltage compensation system, the load characteristics can be maintained within the
specifications limits provided by the battery manufacturer, thus under the all range of temperature use.
The temperature is measured by sensors placed as close as possible to the battery.
Voltage values versus temperature values are:
T (°C)
Battery Voltage (V) 28.27 28.27 28.27 27.74 27.38 27.20 26.98 26.66 26.40 26.17

5.7 Battery capacity

Charger voltage (V)
Charger current (A)
Maximum battery charging current (A)
Minimum capacity (Ah) – 1.75 V
Maximum capacity (Ah) – 1.75 V
5.8 Specified values of I
I is the maximum specified output current that can be supplied continuously while charging the battery.
max a
The standard EN12101-10 §6.2.2 stipulates that "after the end of the maximum backup duration at the
maximum rest current I
180s, the output voltage staying within the voltage range specified by the manufacturer", and specifies the
maximum required backup durations. For this reason, the specified values for I
standard to comply with.
Configuring battery current limitation using microswitches 1 & 2
-20 -10 0
according to EN12101-10 and EN54-4
max a
, the battery must be able to provide the maximum short time current I
max a
10 20 25 30
24 24
2 3
1.5 2.25
7 7
26 38
22
40 50 60
max b
may vary according to the
max a
within