Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger
- 13 inch cutting width
- 40V MAX lithium battery, 1 included
- Charger, spool, guard and auxiliary handle in the kit
- Trimmer and edger in one, quick conversion
- Charge indicator shows remaining power
- 6.4 pounds, 40 inches long and 9 inches wide
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A cordless trimmer and edger kit with battery and charger included, aimed at routine yard work and lawn edges. Run time per charge is not given, so size it against the yard before buying.
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ASIN: B01MZ78ADMModel: LST140CCategory: String Trimmers
Overview
Black+Decker builds this lithium powered cordless trimmer to cut tough overgrowth and define crisp lawn edges after mowing. The line feeds without bumping the head, and the tool converts quickly from string trimmer to lawn edger.
A kit with battery, charger and a spool means it can work straight away. Automatic line feed and quick conversion to an edger cover trimming and edge work with one tool. The listing gives no battery capacity or run time, which limits how confidently it can be matched to a big lawn.
Who it's for
A homeowner who already mows and wants one cordless tool for edges and overgrown corners gets a ready kit. The charge indicator shows how much power is left mid-job. Someone with a large property who needs a stated run time should look elsewhere.
Pros and cons
- Battery and charger included
- Converts between trimmer and edger
- Bump-free line feed
- Charge indicator shows power left
- Battery capacity not listed
- Only one battery in the kit
- Line diameter unstated
Performance notes
Cutting speed comes from the motor drive and the line supply: the head feeds line without bumping, so work continues without stopping to tap the head. Run time depends on the lithium battery, whose capacity the listing does not give. The charge indicator shows the remaining power so a job can be paced.
Specifications
| Model | LST140C |
|---|---|
| Dimensions & fit | |
| Cutting width | 13 inches |
| Item Dimensions L x W | 40"L x 9"W |
| Item weight | 6.4 pounds |
| Power & efficiency | |
| Power source | Lithium Ion |
| Battery Voltage | 40V MAX |
| Construction & materials | |
| Color | Orange |
| Included components | |
| Included components | Trimmer/edger, LBX1540, charger, AF-100 spool, guard, auxiliary handle |
| Other details | |
| Batteries | 1 lithium ion battery (included) |
| Style | 40V String Trimmer Kit |
| Recommended Uses | Yard work, maintaining lawn and garden edges |
Frequently asked questions
How do I know when the Black+Decker LST140C battery is running low?
It has a state of charge indicator that displays how much power is left at all times.
Does the LST140C come with a battery and charger?
Yes. The kit lists one lithium battery, a 40V MAX charger, a spool, a guard and an auxiliary handle.
Can the LST140C edge as well as trim?
Yes. The seller copy says it converts quickly from grass trimmer to electric edger.
Is the Black+Decker LST140C corded?
No. It is a lithium ion cordless kit powered by the included battery.