Black+Decker LST136W String Trimmer vs Bosch Rotak 43 LI Cordless Lawn Mower
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Black+Decker LST136W is a versatile cordless string trimmer designed to handle tough weeds, grass, and overgrown lawn edges with ease. Powered by a high-capacity 36V Lithium-Ion battery, it delivers reliable gas-like performance without the hassle of pull cords, mixing fuel, or dealing with extension cords. Featuring an innovative PowerCommand dial, users can easily choose between maximum runtime to maximize battery efficiency or maximum power to slice through thick brush. Its automatic feed spool (AFS) ensures continuous work without bumping, while the easily convertible wheeled edge feature transforms the trimmer into an edger for crisp lawn boundaries.
The Bosch Rotak 43 LI is a high-performance cordless lawn mower engineered to deliver pristine lawn results without the hassle of petrol or tangled extension cords. Powered by advanced lithium-ion battery technology, it offers impressive cutting performance, freedom of movement, and quick charging times for medium to large gardens. Equipped with innovative grass combs, this mower easily cuts right up to the edge of walls, flower beds, and paths. Its Ergoflex system ensures comfortable handling and improved posture during operation, while the lightweight design and fold-down handles make storage simple and space-saving.
- Cordless convenience with no gas or oil mess
- PowerCommand dial optimizes battery life vs power
- Quickly converts from trimmer to wheeled edger
- Automatic line feed eliminates manual bumping
- No petrol fumes or trailing extension cords
- Lightweight and maneuverable build
- Edge-cutting capability with integrated combs
- Ergonomic handle design for comfortable operation
- Battery and charger may be sold separately depending on the kit
- Limited runtime on maximum power setting
- Not heavy-duty enough for dense brush or woody thickets
- Battery and charger may be sold separately depending on the retail package
- Limited runtime per charge on very long or dense grass
- Higher initial cost compared to corded electric models
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The Verdict
AI-generated from listing dataThe Bosch Rotak 43 LI is a cordless mower for larger lawns with a big grass box, while the Black+Decker LST136W is a versatile trimmer/edger for smaller yards.
Key differences
- •Mowing vs trimming: Bosch cuts grass over a wide area; Black+Decker only trims/edges.
- •Grass collection capacity: Bosch 50 L box; Black+Decker has no collection box.
- •Adjustability: Bosch offers cutting‑height lever; Black+Decker offers PowerCommand power dial and convertible edger.
- •Intended garden size: Bosch targets medium‑to‑large gardens; Black+Decker targets medium‑sized yards.
Capacity
Bosch includes a 50‑litre grass box; Black+Decker provides no collection capacity.
Energy efficiency & running cost
Both use 36 V lithium‑ion batteries; runtime limits are similar and depend on usage.
Noise level
Noise specifications are not provided for either product.
Size & footprint
Black+Decker is described as compact and lightweight; Bosch is larger due to mower deck and box.
Features
Black+Decker adds PowerCommand dial, automatic line feed, and convertible edger; Bosch focuses on mowing and edge combs.
Ease of cleaning / maintenance
Bosch’s large box reduces collection frequency; Black+Decker has no box and requires line‑feed maintenance.
Price
Exact pricing not specified for either; both are one‑time purchase models.
Warranty
Both offer a 2‑year warranty.
Choose Black+Decker LST136W String Trimmer if…
Homeowners with medium‑sized yards who want a lightweight trimmer that can also edge.
Choose Bosch Rotak 43 LI Cordless Lawn Mower if…
Homeowners with medium‑to‑large lawns who need to mow and collect grass.
Common questions
Does either tool include the battery and charger?
Both may be sold without battery and charger depending on the retail package.
Can the Bosch mower handle dense or tall grass?
Runtime is limited on very long or dense grass; not ideal for heavy‑duty mowing.
Is the Black+Decker suitable for edging a lawn?
Yes, it converts to a wheeled inline edger via a built‑in mechanism.