The saw is battery-powered, so make sure to charge it. The voltage amounts to 18 volts and weighs 3.2 kg, so it's not that heavy to carry around.
From Data Powertools
HiKOKI C18DSL 18V Circular Saw Body Only
Tools4trade
Hikoki C18DSL 18V 165mm Cordless Circular Saw Body Only - Default
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