Cordless reciprocating saw recip saw series metabo ase metabo powermaxx power supply battery battery voltage 108 v type of battery li ion features battery charge status indicator electronic stroke control hubzahl 3100 min 1 sgeblatthub hublnge 13 mm workable materials wood cutting saws metal cutting saws plastoc weight 12 kg led light battery capacity 15 ah rotations per minute 3 100 rpm