probst SH-2500-UNI-GL Operating Instructions Manual page 120

Operation
3. The battery lock (17.3) opens.
4. Remove the discharged battery (17).
5. Connect the battery and the charging device.
6. Plug the battery charger's mains plug into a mains
socket.
7. Observe the charge level indicator (17.4).
 See the operating instructions for the battery in
the appendix.
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