Installing and Removing the Battery Pack

WARNING: Make certain the lock-off button is engaged to prevent switch actuation before removing or installing battery.

To install battery pack:

Insert battery pack (2) firmly into trimmer until an audible click is heard as shown in figure C. Ensure battery pack is fully seated and fully latched into position.

To remove battery pack: Depress the battery release button in the back of the battery pack and pull battery pack out of trimmer.

This product can accept any of the batteries and chargers listed in the chart below.

LI-ION Battery Packs and Chargers


Description	Cat. #
Batteries: LI-ION	LBX20
	LBXR20
	LBXR2020
	LB2X4020
Chargers: LI-ION	LCS1620
	L2AFCBST
	L2AFC

ASSEMBLY and Adjustment

installing the guard

WARNING: remove the battery before attempting to attach the guard, edge guide or handle. NEVER OPERATE TRIMMER WITHOUT GUARD FIRMLY IN PLACE. The guard must always be on the TRIMMER to protect the user.

• Turn the trimmer upside down so that you are looking down at the spool cap (8).

• Remove the screw from the guard with a phillips screwdriver.

• Turn the guard (7) upside down and slide it fully onto the motor housing (5). Make sure the tabs (10) on the guard engage the ribs (11) on the motor housing as shown in figure D. The locking tab (24) should have snapped into the housing slot (25).

• Continue to slide the guard on until you hear it “snap” into place.

• Using a phillips screwdriver, insert the guard screw as shown in figure E to complete the guard assembly.

• Once the guard is installed, remove the covering from the line cut-off blade, located on the edge of the guard.

Attaching the Auxiliary Handle

• To attach the handle (3), press in on the buttons (12) on both sides of the upper housing as shown in figure F.

• Position the handle as shown in figure G, matching up the grooved side of the handle with the grooved button. Partially push the handle on so that it will hold the buttons in when you release them with your hand.

• Push the handle completely onto the housing and position it slightly until it “snaps” into place (figure H).

• To adjust the handle up or down, press in on the button (13) and raise or lower the handle.

• The handle should be adjusted so that your front arm is straight when the trimmer is in the working position.

HEIGHT adjustment

CAUTION: Adjust the length of the trimmer to obtain proper working positions as shown in figure J.

• The overall height of the trimmer can be adjusted by loosening the collar (4) and rotating it in the direction of the arrow shown in figure I.

• Move the upper housing straight up or down. When the desired height is achieved, tighten the collar by rotating it opposite of the direction shown in figure I.

LST300, LST300R specifications

Black & Decker is a well-known brand in the power tools and outdoor equipment industry, and their LST300 and LST300R string trimmers are perfect examples of innovation and user-friendly design. Both models cater to home gardeners and landscapers seeking a reliable solution for maintaining their lawns.

The LST300 and LST300R are equipped with a powerful 20V lithium-ion battery, offering enough energy for extended usage while ensuring efficient runtime. The lithium-ion technology not only reduces weight but also minimizes self-discharge, which means you can keep these tools charged and ready for use whenever you need them.

One prominent feature of both string trimmers is their automatic feed spool system. This technology allows for continuous line advancement, so users don’t have to worry about manual adjustments. The automatic feed ensures that the trimmer line is dispensed as needed, allowing for uninterrupted trimming. This feature makes it easy to achieve a neat finish with minimal hassle.

Another noteworthy characteristic of the LST300 and LST300R is the 2-in-1 functionality. Users can quickly convert the trimmer into an edger with just a simple adjustment, making it easy to switch between trimming the lawn and edging sidewalks or flower beds. This versatility adds to the overall value of the tools, as it eliminates the need for multiple devices.

The trimmers also feature a lightweight design, allowing users to maneuver them easily around their gardens without causing undue strain. The adjustable telescoping shaft ensures that the trimmer can be tailored to fit different users, making it comfortable for anyone to operate.

Both models come with a battery charger that allows for quick recharges, ensuring that the trimmers are always ready for action. The LST300R model comes with a second battery, offering even more convenience and extended run time for larger yards or more demanding tasks.

In conclusion, the Black & Decker LST300 and LST300R string trimmers are ideal for anyone looking for an efficient, powerful, and easy-to-use landscaping tool. With features like lithium-ion power, automatic feed spool, and 2-in-1 functionality, these trimmers stand out in the competitive market of outdoor power equipment, making yard maintenance a breeze. Whether you opt for the LST300 or the LST300R, you can count on Black & Decker's reputation for delivering quality products that meet the needs of everyday users.

Black & Decker LST300R Installing and Removing the Battery Pack, Installing the guard

Models: LST300 LST300R