BLACK+DECKER LST522
Score: 78/100
BLACK+DECKER BESTE620
Score: 76/100Rankings
The BLACK+DECKER LST522 is a versatile 20V MAX cordless string trimmer and edger featuring a 12-inch cutting swath and automatic line feed. Its PowerDrive transmission and convertible design make it ideal for routine yard maintenance and edging. However, it may struggle with very dense overgrowth and battery life is limited on high speeds.
The BLACK+DECKER BESTE620 is a corded electric 2-in-1 string trimmer and edger featuring a 14-inch cutting path and Automatic Feed Spool technology. Its unlimited runtime and powerful 6.5 Amp motor make it ideal for homeowners near power outlets. However, the cord restricts mobility and requires careful management to avoid disconnection.
| Attribute | | |
|---|---|---|
| ↓ lower better | 7.9 lb | 6.5 lbbest |
12 in | 14 inbest | |
20 V | 120 Vbest | |
2.5 Ahbest | — | |
2 yearsbest | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Energy(5) | ||
Power Source | Cordless | Corded |
Voltage (V) | 20 V | 120 V |
Motor Type | Unknown | 6.5 Amp |
Battery Capacity (Ah) | 2.5 Ah | N/A Ah |
Runtime (hours) | Unknown hours | Unlimited hours |
Design & Ergonomics(2) | ||
Weight (lb) | 7.9 lb | 6.5 lb |
Shaft Type | Unknown | Straight |
Features & Accessories(1) | ||
Included Accessories | Battery, Charger | Spool, Handle, Guard |
Performance & Cutting(1) | ||
Cutting Width (in) | 12 in | 14 in |
Products in the top-left offer the best value (high score, low price).
Official BLACK+DECKER descriptions and retailer specifications position the LST522 as an efficient tool for overgrowth management, emphasizing its ample power, 2-speed versatility, and comfort features.
Everyday users commonly praise the ease of use, particularly the no-bump automatic feed and quick edger conversion, noting solid battery life for small yards. Recurring complaints focus on battery drain on high speeds and occasional line jamming.
“powers through tough spots comfortably”
“great for homeowners looking for a powerful trimmer”
Search results lack dedicated expert reviews or editorials for the BESTA510. Official product pages emphasize its power, ease of use, and AFS technology as ideal for homeowners tackling yard overgrowth.
Direct user feedback for the BESTA510 is limited, with no aggregated ratings on major retailers like Walmart. However, reviews for the comparable GH900 model describe it as great for homeowners looking for a powerful trimmer, with specific praise for the motor and line feed efficiency.
