Maintenance
Manual_Grid_Power_FNC_en_V3_0
51
14. Remove the gas venting tubes.
15. Thoroughly remove any contamination on the battery system with a soft, damp cloth with
water.
16. Refill the electrolyte level with distilled water to the maximum level, see
Electrolyte Level with Distilled Water on page 46
17. Remount the plugs to the FNC
®
cells.
18. Measure the voltages of the individual cells using a digital multimeter.
Note
If the individual cell voltages vary by more than ± 50 mV from the mean of all cell voltages,
contact HOPPECKE service.
19. Clean the battery system if necessary.
20. Mount the insulation profiles.
21. Measure the insulation resistance of the battery system, see
Resistance on page 44
22. Keep a log of your maintenance activities, see
13.2 Maintenance Log on page 57
