Greenworks 40V 13 in Trimmer/Edger
#12 in BatteryFull review
A cheap, light trimmer and edger for small, tidy yards. Larger or rougher lots need heavier line and a wider swath.
Amazon $124.98$124.98
The Greenworks 40V 13 in Trimmer/Edger is the better string trimmer overall, rated 3.5 to 3.1. The Greenworks 40V 13 in Trimmer/Edger leads on value and weight. The Greenworks 40V 13 in Trimmer/Edger costs $34.02 less ($124.98 vs $159).
Black+Decker LST136 40V 13 in
#16 in BatteryFull review
An easy trimmer and edger for small, well kept lawns. Choose a trimmer with heavier line for overgrown lots.
Amazon $159$159
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Greenworks 40V 13 in Trimmer/Edger for value ($9.61 per inch of swath ($124.98 with batteries and charger, 13 in swath) vs $12.23 per inch of swath ($159 with batteries and charger, 13 in swath)) and weight (5.2 lb (without battery) vs 9 lb).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every battery string trimmer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Greenworks 40V 13 in Trimmer/Edger | Black+Decker LST136 40V 13 in |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 30% | 83 $9.61 per inch of swath ($124.98 with batteries and charger, 13 in swath) | 61 $12.23 per inch of swath ($159 with batteries and charger, 13 in swath) |
| Line 20% | 0 .065 in line | 0 .065 in line |
| Swath 15% | 40 13 in swath | 40 13 in swath |
| Weight 15% | 100 5.2 lb (without battery) | 67 9 lb |
| Warranty 20% | 50 3-year warranty | 50 3-year warranty |
Specifications
| Greenworks 40V 13 in Trimmer/Edger | Black+Decker LST136 40V 13 in | |
|---|---|---|
| Cutting | ||
| Cutting swath | 13 in | 13 in |
| Largest line | .065 in | .065 in |
| Line feed | Automatic feed | Automatic feed |
| Shaft | Straight | Straight |
| Converts to edger | Yes | Yes |
| Takes attachments | No | No |
| Power | ||
| Engine or battery | 40 V, 2 Ah of battery | 40 V, 2 Ah of battery |
| Battery energy | 80 Wh | 72 Wh |
| Battery included | Yes | Yes |
| Runtime | 40 min | - |
| Variable speed | Yes | Yes |
| Build | ||
| Weight | 5.2 lb (without battery) | 9 lb |
| Warranty | 3 years | 3 years |
| Battery warranty | 3 years | - |