How long does the battery last?

With the included 4Ah batteries, runtime varies based on cutting conditions. Dense grass uses more power than light trimming, but most users can complete typical residential yards on one charge.

Can I use this as an edger?

Yes, the trimmer head rotates to function as an edger for cleaning up landscape borders and sidewalk edges. This dual-purpose design saves space in your shed.

Are replacement spools easy to find?

The kit includes 8 spools, which is a generous supply. Replacement spools are widely available for this battery platform, making ongoing maintenance affordable and convenient.

🏕️ Outdoor & AdventureAugust 29, 2026

Cordless String Trimmer and Yard Edger

Cordless string trimmer with 20V power, auto feed, and 8 spools. Perfect for lawn edges, garden trimming, and yard cleanup.

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Product Comparison

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HEYWORK 20V 12" Cordless String Trimmer, Electric Weed Wacker & Edger \| Two 4AH Battery,Auto feed weed wacker with 8 spools for lawn edges, garden trimming, yard care, and outdoor cleanup.	Check Price on Amazon →

Key Features

20V cordless power with dual 4Ah batteries for extended runtime
12-inch cutting width reaches more area with each pass
Auto-feed system eliminates manual adjustments and downtime
Includes 8 replacement spools for continuous operation

Who Should Buy This?

Homeowners who need an efficient cordless lawn trimmer for regular yard maintenance should consider this model. It's ideal for those who want to avoid gas-powered equipment or corded hassles, and it works well for edging walkways and garden borders.

Buying Tip

Check if you already own compatible batteries in the same voltage range—this can save significant money if you have existing tools in the same platform. The dual battery system means one can charge while you're using the other for uninterrupted yard work.