That this mitre saw runs on a cord means a constant, stable supply of power. The saw has a voltage of 230 volts and weighs 10 kg, so it's not that heavy to carry around.
From ManoMano
R185SMS+ 185mm Multi-Material Sliding Mitre Saw 1200W 240V EVLR185SMSP - Evolution
This product is also available at 4 unverified stores.