To remove

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Remove the battery cover .
Detach the battery cables:

Fig 1: Identifying Battery's Lock Lug Screw And Battery Cables
Courtesy of SAAB-SCANIA OF AMERICA, INC.
- Detach the negative battery cable (A).
- Detach the positive battery cable (B)
- Detach the battery drain hose.
Undo the screw (C) to the battery's lock lug and lift out the battery.