Harbor Freight offers ... variant's extendable pole is ideal for removing dead limbs that are difficult to reach. One great example is the Portland 6.5 Amp Electric Pole Saw.

Atlas makes a 40V Cordless 10" Pole Saw which is sold at Harbor Freight. This is a 10" bar and chain battery-powered saw which comes fixed to a pole that starts at 6 ft. and can extend up to 9 ft., ...