Maintenance Instructions
10.6.16 Kapitel/Chapter 7: Maintenance Instructions - Seite/Page 113
7.10.1.3 Check electrolyte density
Fig. 7.10.1.3-1: Battery• Measure the electrolyte density of individual cells with a
commercial hydrometer. The hydrometer reading (see table
on following page) indicates the battery’s state of charge.
During measurement, the temperature of the electrolyte
should preferably be 20 °C.
AttentionThe gases emitted by the battery are explosive! Keep
sparks and naked flames away from the battery!
Do not allow battery acid to come into contact with skin
or clothing!
Wear protective goggles!
Do not rest tools on the battery!
Electrolyte density
in [kg/ l] Charge status
Normal Tropical
1.28 1.23 well charged
1.20 1.12 semi-charged, re-charge
1.12 1.08 discharged, immediately charge
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