Milwaukee has expanded its range of cordless forestry tools to include a dual-battery chainsaw running a 48cm/20in bar.

It runs on 18V batteries, like the rest of the firm’s tools.

However, for best results it needs to be teamed with the latest high-output Forge packs, which come in 8Ah and 12Ah formats.

It needs two of these to function, which means 36V is sent to the brushless Powerstate motor.

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In return, this delivers a max torque of 9.5Nm and chain speed of up to 14.3m/sec, giving it cutting speeds to rival some fairly serious petrol saws.

With a pair of 8Ah Forge packs fitted, estimated output on a single charge is 25 cuts in 38cm hardwood.

Trusted supplier Oregon provides the bar and chain, which has a 0.325 gauge and 1.3mm pitch.

Prices will be announced when the saw goes on sale at the end of October.