Husqvarna LB 548i Operator's Manual page 15

5. Remove the battery in slot 1.
6. Remove the seal stop.
7. Push the battery adapter into the battery
compartment until you hear a click.
1630 - 004 -
8. Put the cord of the battery adapter through the seal
stop hole. Attach the cord with the clip.
9. Install the multi battery onto the battery adapter.
10. Connect the multi battery to the battery adapter.
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