Electric Push-Button String Trimmers (Top Picks)
For a demanding residential yard, I’d start with the EGO ST1623T if you want a dedicated trimmer and already use EGO’s 56 V batteries. Choose the Milwaukee M18 FUEL 2825-20 if you own M18 tools and want a power head that accepts compatible attachments. Before buying, check the exact kit, battery, charger, line, and guard details.
A push-button start is convenient, but it does not make a trimmer risk-free. The rotating line can throw stones or wire fragments hard enough to injure someone, and a missing or incorrect guard raises that risk. Wear eye protection, sturdy footwear, and long trousers. Use hearing protection when the manual calls for it, and keep people and pets at least 50 ft (15 m) away.
For a yard with several tools, the best pick is not always the model with the largest battery or widest cutting path. It is the trimmer that fits your battery system, handles your usual growth, and has parts and line you can replace correctly. Below, I compare two strong options and show how to set them up safely.
Top Picks: Which Push-Button Trimmer Fits Your Yard?
These two models suit different tool owners. The EGO is a dedicated 56 V trimmer, while Milwaukee’s M18 FUEL 2825-20 uses an attachment system. Compare the exact tool and kit in your region: a bare tool may not include the battery or charger you need.
| Model | Best fit | Battery system | Notable detail | Check before buying |
|---|---|---|---|---|
| EGO ST1623T | Residential yards with regular or demanding trimming | EGO 56 V battery platform | Powerload head; specified for 0.095-in line | Battery and charger included in the exact package; cutting width and manual |
| Milwaukee M18 FUEL 2825-20 | M18 owners who want a multi-attachment power head | Milwaukee M18 battery platform | QUIK-LOK attachment system | Which attachments are included or sold separately; approved trimmer-head and line details |
EGO ST1623T: Best Dedicated Trimmer
The EGO ST1623T is a battery-powered string trimmer on EGO’s 56 V platform. It is a sensible first choice for an owner who wants a dedicated trimmer and already has compatible EGO batteries. Its line-loading feature can make reloading easier, but you still need to follow the model’s manual.
The stated line size is 0.095 in. Do not assume a different line will work just because it fits through the head. Check the manual for your exact model, along with the specified cutting width and any permitted head setup. A wider line or altered line length can overload the tool or defeat the guard’s intended protection.
Choose a kit only after checking its contents. Battery capacity, charger, and total working weight depend on the package and battery used. If you are new to the EGO platform, compare the cost of the full kit with the cost of a bare tool before deciding.
Milwaukee M18 FUEL 2825-20: Best for M18 Tool Owners
The Milwaukee 2825-20 is an M18 FUEL power head with the QUIK-LOK attachment system. It suits a yard owner who already uses compatible M18 batteries and wants one power head for approved attachments. Confirm which parts are included: package contents and attachment availability can vary by listing and region.
The attachment system is useful only if the specific attachment is approved for that power head. Check Milwaukee’s compatibility information before pairing tools, and use the trimmer attachment’s manual for line size, cutting width, and head care. Do not treat the shared battery platform as proof that every M18 battery, attachment, or accessory is suitable.
The M18 system can reduce the need to buy a separate motor unit for each compatible tool. The trade-off is that you must check attachment fit and the total kit cost. If trimming is your main task and you do not plan to use other attachments, compare the complete trimmer setup with a dedicated model.
How to Choose: Battery, Line, and Cutting Width
A good match depends on three things: the battery platform you own, the growth you need to cut, and the trimmer’s approved line and cutting setup. “Voltage” identifies the tool’s electrical system; “cutting width” is the path the line covers in one sweep. Use the tool label and manual, not a guess based on another model.
Battery platforms are not interchangeable just because packs look alike. Use only the voltage and battery type listed for the tool. A higher-voltage pack is not an upgrade; it is the wrong supply unless the tool maker lists it as compatible.
Battery capacity is measured in amp-hours (Ah). In general, a higher Ah rating means more stored energy, but it can also add weight. Actual run time varies with the battery, grass, line, and how hard you work the trimmer. Compare kit contents and weight with the battery installed, not just the bare-tool figure.
- Pick the platform you already own if its battery is approved for the trimmer.
- If you need a battery and charger, compare full kits rather than bare-tool prices.
- For light edge work, prioritize control and manageable weight.
- For regular, tougher residential trimming, compare motor performance and the maker’s approved line details.
- Use only the listed line diameter and type. Do not extend line past the maker’s stated limit.
- Set the guard and line arrangement to the specified cutting width. Never remove the guard to gain reach.
Equipment Setup and Safety Preparation
Safe setup means checking the tool before the battery goes in. Inspect the guard, head, line, trigger lockout, battery case, and contacts. Look for cracks, loose parts, or damage, and clear stones, wire, and yard debris from the work area. If the guard or head is damaged or wrong for the model, do not start.
- Read the manual for the exact model and battery.
- Wear eye protection, sturdy footwear, and long trousers. Add hearing protection if the manual requires it.
- Keep people and pets at least 50 ft (15 m) away.
- Check that the trigger lockout and other controls work as described in the manual.
- With the cutting head clear of people and objects, install a charged, undamaged, dry battery.
- Engage the lockout and operate the trigger in the order given by the manufacturer.
Push-button starting does not bypass the lockout. If a tool starts without the required control steps, or a safety control fails, stop using it and consult the manual or an approved service provider.
Two Yard Setups: Matching the Tool to the Job
These examples show how I would narrow the choice for common yard needs. They are selection scenarios, not a claim that one model suits every property. The right choice still depends on the exact battery, attachment, line, and kit specifications.
- Several EGO tools and routine yard trimming: I would look first at the ST1623T. The shared battery platform may avoid buying another battery system. I would still confirm whether the chosen package includes a battery and charger, then check the manual for line and cutting-width limits.
- Several M18 tools and a need for compatible attachments: I would compare the 2825-20 power head with the needed attachments. I would verify each attachment’s compatibility and price, then confirm whether the purchase listing includes the trimmer attachment, battery, and charger.
In either setup, stop if the head vibrates unusually or the guard comes loose. Release the trigger, wait for the head to stop, remove the battery, and inspect the tool before using it again.
Field Trimming and Landscaping Operation
Good trimming is controlled trimming. Keep stable footing, hold the rotating head below waist height, and use a steady sweep. Work within easy reach, and move your feet to reposition rather than leaning or stretching toward a difficult spot.
Start with grass and weeds the tool is rated to handle. Use the edge of the head to guide the cut, and avoid striking tree trunks, fences, pavement, or hidden obstacles. Contact with hard objects can wear or break line and may damage the head. If growth is too dense for the tool, stop and use a method suited to that material.
If the trimmer acts strangely, release the trigger. Wait until the head has fully stopped before checking it. Remove the battery before clearing tangled line or debris, adjusting the head, or servicing the tool. Never reach near a moving head, even if the line appears still.
Maintenance, Line Replacement, and Inspection
Basic care helps prevent poor feeding and avoidable damage. Before cleaning, changing line, or inspecting the head, release the trigger, wait for the head to stop, and remove the battery. Follow the manual for line replacement; head designs differ, so one loading method may not fit another model.
- Fit only the listed line diameter and type. For the EGO ST1623T, the specified line is 0.095 in; confirm the manual for your exact model.
- Keep the guard installed and in good condition. Do not use an unapproved cutting attachment.
- Remove grass and debris from the head and vents. Use the cleaning method allowed by the manual.
- Check the head, guard, shaft, battery case, and contacts for damage before each use.
- If line will not feed, stop and remove the battery before opening or adjusting the head. Use the manual’s steps rather than pulling or cutting at a jam with power connected.
A loose guard, damaged battery, or cracked head is a stop-work issue. Replace or repair parts through an approved source before using the trimmer again. Do not operate a damaged or wet battery.
Battery Storage and Seasonal Care
Good battery storage begins with the maker’s instructions. Remove the battery from the trimmer before storage, keep the tool and battery dry, and store them in a clean place away from heat and damage. Check the battery manual for its charging and storage guidance, since care rules can vary by battery model.
Before the first trim of the season, inspect the tool and battery, check that the battery is charged, and test the lockout and trigger as directed. Make sure the line is fitted correctly and the guard is secure. If the charger flashes an error, check its manual for that charger’s code and confirm the battery is dry and undamaged. Do not assume every flashing pattern means the same thing across brands.
Conclusion
For an owner already on EGO’s 56 V platform, the ST1623T is a strong dedicated-trimmer candidate. For an M18 owner who will use compatible attachments, the Milwaukee 2825-20 power head may be a better system fit. In both cases, check the exact kit, battery, charger, attachment, line, and guard details before purchase.
Before each job, inspect the controls and head, keep bystanders 50 ft (15 m) away, and remove the battery before clearing or servicing the tool. Those steps help protect both the operator and the equipment.
FAQ
Do push-button string trimmers need a trigger lockout?
Yes, if the model is designed with one. Follow the manual’s start steps and confirm the lockout works before trimming.
Can I use any battery with a push-button trimmer?
No. Use only the battery type and voltage listed for that exact tool. Do not substitute a higher-voltage pack.
What line size does the EGO ST1623T use?
The ST1623T is specified for 0.095-in line. Confirm the manual for the exact model and use only its listed line type.
Is the Milwaukee 2825-20 a complete trimmer?
It is an M18 FUEL power head with the QUIK-LOK attachment system. Check the specific listing to see whether a trimmer attachment, battery, and charger are included.
Are batteries and chargers included with these models?
It depends on the kit. A bare-tool package may not include them, so check the full package description before buying.
Can I remove the guard to cut a wider path?
No. Use the guard and line setup specified by the manufacturer. A missing or incorrect guard increases exposure to flying debris and can allow excessive line length.
What should I do if the trimmer head vibrates unusually?
Release the trigger and wait for the head to stop. Remove the battery, then inspect the head and guard according to the manual before restarting.
How do I clear tangled line safely?
Release the trigger, wait for the head to stop completely, and remove the battery. Then follow the manual’s steps to clear the head.
How far away should people and pets stay?
Keep people and pets at least 50 ft (15 m) away while trimming, as directed in this guide’s safety setup.
What should I check before storing a trimmer for winter?
Remove the battery, clean the tool as the manual permits, and store the tool and battery dry. Follow the battery maker’s charging and storage guidance.
(This article was written by one of our staff writers, Harrison Croft. Visit our Meet the Team page.)
