BLACK+DECKER 20V MAX Cordless String Trimmer & Edger LST300 — 12" Cutting Swath, 2.0Ah Battery, Auto Feed

The BLACK+DECKER 20V MAX LST300 is a cordless 2-in-1 string trimmer and wheeled edger that delivers more torque and longer runtime for fast, gas-free lawn cleanup.

This battery-powered trimmer/edger pairs a POWERDRIVE transmission with an improved 2.0 Ah lithium-ion battery to tackle thick grass, overgrowth, and edging with fewer passes. It converts from a rotary trimmer to a wheeled edger in seconds, uses an automatic feed spool to eliminate bumping, and offers adjustable height and handle positions for comfortable control. Because it is part of the 20V MAX Powerconnect family, the battery swaps easily among compatible BLACK+DECKER tools.

How much cutting power and runtime does this cordless trimmer provide?

The POWERDRIVE transmission increases torque delivered to the cutting string, producing up to 6200 RPM for stronger, faster cutting than many basic consumer trimmers. The included 2.0 Ah lithium-ion battery gives about 33% more runtime compared with the older LBXR20 pack, so you can finish medium-size yards on a single charge in many cases.

• POWERDRIVE delivers higher torque to the cutting string for tougher weeds
• 6200 RPM motor speed for faster cuts and fewer passes
• 2.0 Ah battery provides longer run times than the previous LBXR20 battery
• Battery compatible across the BLACK+DECKER 20V MAX Powerconnect system

How easy is it to switch between trimming and edging?

Changing modes requires only a quick conversion: flip the unit into the wheeled edger position to run along sidewalks and driveways, or return it to the upright orientation for standard trimming. The design keeps the process tool-free and intuitive so you can move between tasks without stopping to retool.

• Tool-free conversion from trimmer to wheeled edger in seconds
• 12-inch cutting swath suitable for common lawn work
• Edge guide wheel improves straight edging along sidewalks and beds
• Automatic feed spool eliminates bump-feeding while converting

Will it be comfortable to use and simple to maintain?

The trimmer is lightweight with adjustable handles and multiple height settings, reducing fatigue during extended use. The Automatic Feed Spool (AFS) advances line as needed, so you won’t have to stop and manually bump the head, and the wall-mountable charger keeps the battery organized between uses.

• Micro-texture grips and adjustable handle for improved control and comfort
• Multiple shaft height positions to suit different users and tasks
• AFS (Automatic Feed Spool) for continuous trimming without bumping
• Wall-mountable charging base for tidy storage and quick recharge

What safety and warranty support come with the tool?

The LST300 is electric and quiet compared with gas models, eliminating fuel handling and many maintenance hassles. It also includes a 2-year limited warranty from BLACK+DECKER for peace of mind with normal residential use.

• Electric power reduces noise and eliminates gas maintenance
• 12-inch steel deck for durable cutting performance
• 2-year limited warranty covers manufacturing defects under normal use
• Safer startup and operation compared with gasoline-powered trimmers

Who this tool is for: Homeowners with small to medium yards who want a low-maintenance, cordless option that converts between trim and edge modes. It’s a good fit if you value longer battery runtime, straightforward upkeep, and the convenience of using a single 20V MAX battery across multiple BLACK+DECKER Powerconnect tools. If you need heavy-duty commercial performance or extremely long runtime per charge, consider higher-capacity battery options in the same system.