They might sound more like an electric carving knife than a serious piece of timber-felling kit, but don't be fooled -battery-powered chainsaws mean business. In fact, such has been the improvement in performance over recent years that the gutsiest models promise power and chain speeds to rival 50cc petrol saws - a common size found on farms. Added to that, advances in battery technology mean operators should be able to get decent run times to a charge.
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