Greenworks 40V 12 in String Trimmer & 390 CFM Blower Combo
- 12 inch trimmer, .065 inch auto-feed line
- 390 CFM blower, 110 MPH, cruise control
- 40V 2.0 Ah battery, 60 minute rapid charge
- 7500 rpm listed trimmer speed
- Weight listed two ways: 16.5 lb in specs, 7.8 lb in the text
- 3 year warranty, plus 2 years on the battery
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A cordless trimmer and blower combo on one battery, with auto-feed line and a cruise control blower. The listing gives two very different weights, so check the real figure before buying.
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ASIN: B01CA4PS8CModel: STBA40B210Category: String Trimmers
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Overview
Greenworks STBA40B210 pairs a string trimmer with a leaf blower on one battery platform. The trimmer uses auto-feed line, and the blower has a cruise control setting for steady output.
Two yard tools sharing a battery cover trimming and clearing hard surfaces, and a rapid charger is noted. The marketing copy and the spec table disagree on weight and runtime, so treat both with care.
Who it's for
Homeowners building a battery tool set around one platform. Those with big lawns or strict weight limits should look at other options.
Pros and cons
- Trimmer and blower in one kit
- Cruise control on the blower
- Shared battery platform
- Warranty on tool and battery
- Weight figures conflict
- Runtime claims differ across the listing
- One battery for two tools
Performance notes
The trimmer line advances as it wears, and the blower cruise control holds a chosen speed so the trigger need not stay squeezed. Both tools draw from one battery, so the work per charge is shared between them. The listing runtime claims differ.
Specifications
| Model | STBA40B210 |
|---|---|
| Dimensions & fit | |
| Cutting width | 12 inches |
| Dimensions (L x W) | 64.5 x 7.5 inches |
| Item weight | 16.5 pounds |
| Capacity & performance | |
| Blower airflow | 390 CFM, 110 MPH |
| Speed | 7500 rpm |
| Power & efficiency | |
| Voltage | 40V |
| Battery | 2.0 Ah lithium ion, 60 minute rapid charge |
| Listed battery life | 2 hours |
| Warranty & support | |
| Warranty | 3 year, 2 year on battery |
| Other details | |
| Line | 0.065 inch auto-feed |
Frequently asked questions
How do I care for the Greenworks STBA40B210 combo?
The listing gives no care instructions. Check the manual that comes with the tools.
Do the trimmer and blower in the STBA40B210 share one battery?
The listing says one 2.0 Ah battery is included. The description says the 40V platform fuels more than eight tools.
How heavy is the Greenworks STBA40B210 trimmer?
The spec table says 16.5 pounds, while the description says 7.8 pounds. The listing does not explain the difference.