Commissioning
Manual_Grid_Power_FNC_en_V3_0
36
9.2.
Commissioning of Unfilled and Uncharged (UU) and Filled
and uncharged (FU) grid|power FNC
®
Cells
DANGER!
Danger of explosion due to formation of oxyhydrogen gas!
When the cells are charged, water is decomposed and a hydrogen-oxygen-gas mixture
(oxyhydrogen gas) is formed, which readily explodes with low energy input.
Keep any ignition source away from the battery system:
Open flames or fire
Smoking
Glowing embers
Flying sparks during grinding work
Electrical sparks caused by switches or fuses
Hot surfaces with temperature above 300°C
Electrostatic discharges
Work with electrically insulated tools that do not create sparks. Ground yourself when working
directly on the battery system.
Make sure that there is adequate ventilation in accordance with DIN EN IEC 62485-2, so that the
potential explosive gas mixture is discharged.
ATTENTION! - valid for unfilled and uncharged (UU) grid|power FNC
®
cells
After filling the electrolyte, wait at least 12 hours before you begin with the commissioning works.
1. Remove the transport plug of each grid|power FNC
®
cell.
2. Recommended: Insert a gas venting tube on each grid|power FNC
®
cell, (HOPPECKE
material number: 4143180100).
3. Measure the temperature of the battery system by inserting a suitable glass thermometer
through the opening of a cell.
The cell to be measured should be installed in the center of the system, in order to
capture the warmest possible location of the system.
4. Charge the battery system using a constant current of I
5
for 7.5 hours.
ATTENTION!
The battery system must not exceed a temperature of 45 °C during charging.
Once a temperature of 45 °C is reached, stop the charging process.
Make a note of the remaining charging time.
Only continue charging when the cell temperature has dropped below 25 °C.
Complete the remaining charging time of the 7.5 hours after the battery system has cooled.
Should the battery again reach a temperature of 45 °C before the charging time of 7.5 hours is
completed, interrupt the charging process again, and repeat as necessary.
5. Allow the battery system to rest for at least 4 hours.
6. Remove the gas venting tubes.
