Battery hedge trimmers, also known as cordless hedge trimmers, are a good choice for many homeowners. They offer the convenience of portability without needing a power cord, making them ideal for larger yards or areas far from a power source. Many battery-powered hedge trimmers perform comparable to corded models and can handle most common trimming tasks. However, their run time is limited to the battery life, so a spare battery might be necessary for larger jobs.

Sharpening hedge trimmers involves a few steps. First, you must clean the blades to remove any dirt or sap. Then, using a flat file, follow the angle of the cutting edge of each tooth, filing in one direction toward the sharp edge. After filing all the teeth, use a whetstone to hone the edges for a sharper finish. Always ensure you're wearing protective gloves and following proper safety procedures when handling and sharpening the blades.

Whether a gas hedge trimmer is "better" than an electric one largely depends on your specific needs. Gas hedge trimmers are typically more powerful and can cut through thicker branches, making them suitable for larger hedges and professional landscaping jobs. However, they are heavier, louder and require more maintenance. Both corded and battery-powered electric hedge trimmers are lighter, quieter and easier to maintain, making them a popular choice for residential use and smaller hedges.