Has anyone sharpened the blades on this hedge trimmer? Was it difficult? I would also like to know how long it took the blades to dull. Thank you

The best way to sharpen hedge trimmers and other like equipment is with a Dremel tool with their 453 5/32 grinding tool. You really don't need to do any disassembly but you do need to be able to move the blade from the closed to open position. Just grind each face of the cutting surface. These stones are great on bandsaws, too. My saw has a 144" blade on it and I can sharpen all the teeth in about fifteen minutes. Use these stones on hand held clippers and lawn shears, too.

I have the 18 volt black and decker hedge trimmer. Will the 40 volt charger be more powerful or just provide longer battery life?

I have both, and I see no difference in power. Certainly more voltage should mean more powerful cutting, but only if the motor is also upgraded to a more powerful one. I suspect that wasn't done. - I've noticed the same thing with the Black & Decker sweeper/blower. I have both the 18 V and the 40 V sweeper/ blower, and the 18 V is noticeably more powerful than the 40 V. The only instance with these Black & Decker tools where I have noticed that the 40 V is more powerful than the 18 V, is the string trimmer. The 40 V string trimmer is MUCH more powerful than the 18 V.

Blade Material	Coated Steel
Material Type	Plastic
Color	Orange
Blade Length	24 Inches
Cutting width	24 Inches
Item Weight	6.9 Pounds
Item Dimensions L x W x H	39.2"L x 7.3"W x 7.5"H
Power Source	Battery Powered

40V MAX Hedge Trimmer, Cordless, 24-Inch Blade, Battery and Charger Included (LHT2436)

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