String Trimmer Selection Guide: Gas, Electric, or Battery — Which Type Is Right for Your Lawn?

A string trimmer is one of those tools most homeowners do not think about until they need one — and then the choices can be overwhelming. Gas, corded electric, or battery? Straight shaft or curved? Bump-feed head or a fixed blade?

The honest answer is that there is no single best type. The right string trimmer for your property depends on the size of your yard, how much trimming you actually do, whether you already own battery tools in the same ecosystem, and how much maintenance you are willing to deal with.

Here is the breakdown for St. Charles County homeowners.

The three types at a glance

Feature	Gas	Corded Electric	Battery
Power	High	Medium-High	Medium
Runtime	Unlimited (fuel)	Unlimited (cord)	20 - 60 minutes
Weight	10 - 15 lbs	7 - 10 lbs	8 - 12 lbs
Noise	Loud (95-105 dB)	Moderate (85-90 dB)	Quiet (75-85 dB)
Maintenance	High (fuel, oil, plugs, filters)	Low (plug and play)	Low (battery care)
Price range	$150 - $600	$40 - $100	$100 - $350
Cord included?	No	Usually no	Usually no
Best for	Large properties, heavy weeds, commercial use	Small yards near outlets	Most suburban homeowners

Gas string trimmers: power with trade-offs

Gas trimmers are the most powerful option and the standard for anyone doing serious trimming on a regular basis. They spin the line fast enough to cut through thick weeds, brush, and even light saplings, and they run as long as you keep the tank full.

What gas trimmers do well:

• Raw power for thick weeds, blackberry canes, fence line overgrowth, and anything that has been left to grow past its prime. If you are knocking down heavy growth on a regular basis, gas is still the right call.
• Unlimited runtime. On a property with a long fence line, drainage ditch, or treeline that takes an hour or more to trim, a gas trimmer keeps running without needing to recharge.
• Hot-swappable fuel. If you run out, refill and keep going in 30 seconds. No waiting for batteries to charge.

Where gas trimmers fall short:

• Maintenance. Gas trimmers need mixed fuel, oil changes, spark plug replacement, air filter cleaning, and carburetor attention if they sit unused over winter. If you are the type of homeowner who wants to pull the cord and go, a gas trimmer will frustrate you.
• Starting difficulty. Cold starts, primer bulbs, choke settings — gas trimmers can be finicky, especially after sitting in a Missouri garage through a humid summer.
• Noise and vibration. Extended use without hearing protection is uncomfortable, and neighbors notice.
• Fuel storage. Mixed gas goes stale in about 30 days. If you trim once a month, you are constantly dealing with stale fuel issues.

Best for: Properties over two acres with heavy weed pressure, fence lines that need serious clearing, or homeowners who already maintain small engines and do not mind the upkeep.

Corded electric string trimmers: cheap and reliable for small yards

Corded electric trimmers are the budget champion. For $40 to $80 you get a tool that starts every time with the push of a button, weighs less than most alternatives, and delivers consistent power for as long as you need it.

What corded trimmers do well:

• Price. A corded trimmer costs less than a tank of gas and a case of oil for a gas trimmer.
• Zero maintenance. No fuel mixing, no oil changes, no spark plugs. Plug it in and go.
• Consistent power. Unlike battery trimmers that slow down as the charge drops, corded trimmers run at full power indefinitely.
• Lightweight. Most corded models weigh under 8 pounds, making them easy to handle for extended trimming sessions.

Where corded trimmers fall short:

• The cord. You are tethered to an outlet within 100 feet (or 150 feet with a heavier extension cord). Trimming the front yard, back fence, and side paths means dragging the cord around beds and trees, avoiding running over it, and finding a second outlet for the far side of the house.
• Extension cord hassle. You need a heavy-gauge outdoor extension cord (12 or 14 gauge for runs over 50 feet), and the cord gets tangled in shrubs, caught on corners, and run over if you are not careful.
• Limited reach. If your property has areas more than 150 feet from an outlet — the back corner of a large lot, a detached garage with no power, a drainage ditch — corded will not work.

Best for: Small properties under a quarter acre where all trimming areas are within easy reach of an outlet. Also great as a first trimmer for new homeowners who are not sure what they need yet.

Battery string trimmers: the sweet spot for most homeowners

Battery-powered string trimmers have improved dramatically in the last few years. A modern 40V or 56V brushless trimmer has enough power to handle typical residential trimming — grass along fences, flower beds, driveway edges, around trees — and the convenience of cordless operation with zero engine maintenance.

What battery trimmers do well:

• Push-button start. No pulling cords, no choke, no primer bulb. Press the trigger and trim.
• Quiet operation. Battery trimmers are significantly quieter than gas, making them a better choice for early morning or evening trimming in neighborhoods with close lot lines.
• Low maintenance. No oil, fuel, filters, or spark plugs. Keep the battery charged and the trimmer runs.
• Battery ecosystem. If you already own a battery-powered leaf blower, hedge trimmer, or chainsaw from the same brand, the same batteries work across tools. This is one of the biggest hidden savings.

Where battery trimmers fall short:

• Runtime limits. Most battery trimmers run 20 to 45 minutes per charge on a standard battery, depending on the trimmer, battery size, and how heavy the trimming is. If your trimming takes an hour, you need two batteries or a quick charge break.
• Power fade. As the battery drains, the trimmer loses power. The last 10 minutes of a battery charge feel noticeably weaker than the first 10.
• Battery replacement cost. Replacement batteries cost $60 to $150 each. Over five years, battery replacement can add significantly to the total ownership cost.
• Cold weather. Lithium-ion batteries lose capacity in cold temperatures. A battery that runs 40 minutes in July might run 20 minutes in December.

Best for: The majority of suburban homeowners on quarter-acre to one-acre lots where trimming takes 15 to 45 minutes per session.

Comparing specific models for St. Charles County homeowners

Model	Type	Price	Power/Runtime	Best For
EGO Power+ ST1500	Battery (56V)	$199	45-60 min	Best overall for homeowners
DEWALT DCST970	Battery (60V)	$229	30-45 min	If you already own DEWALT tools
Stihl FS 91 R	Gas	$329	Unlimited	Heavy weeds, large properties
Echo SRM-225	Gas	$249	Unlimited	Best value gas trimmer
Black+Decker LST536	Corded electric	$59	Unlimited	Small yards, tight budget
RYOBI ONE+ 40V	Battery (40V)	$149	25-35 min	Budget battery, RYOBI ecosystem
Milwaukee M18 Fuel	Battery (18V)	$249	25-35 min	If you own Milwaukee tools

Shaft type: straight vs curved

This is an underrated decision that affects how the tool feels in use.

Straight shaft trimmers have a solid driveshaft running from the motor to the trimmer head. They are more durable, allow better reach under shrubs and fences, and are the standard for gas and higher-end battery trimmers. Most professionals use straight shaft.

Curved shaft trimmers have a flexible cable inside a curved tube. They are lighter, cheaper, and easier to maneuver for shorter users, but they are less durable and harder to reach under obstacles with.

For most homeowners, a straight shaft trimmer is worth the small weight penalty. The extra reach is handy, and the trimmer lasts longer.

Trimmer head types

Head Type	How It Works	Best For
Bump-feed	Tap the head on the ground to advance more line	Standard residential use
Auto-feed	Advances line automatically when revs drop	Low-maintenance trimming
Fixed-line	Replace entire head when line wears out	Small yards, occasional use
Blade attachment	Replace line head with a metal or plastic blade	Heavy weeds, brush clearing

Bump-feed heads are the most common and the best choice for most homeowners. They are simple, reliable, and replacement spools are available at any hardware store.

Line diameter matters

String trimmer line comes in different thicknesses, and using the wrong size hurts performance.

• 0.065 to 0.080 inches — Standard for light residential trimming. Works on grass and light weeds. Common on most electric and battery trimmers.
• 0.080 to 0.095 inches — Medium duty. Handles thicker weeds without breaking as often. Standard on most gas trimmers.
• 0.095 to 0.130 inches — Heavy duty. For gas trimmers with higher power output. Cuts through brush and briars but wears out battery trimmers faster.

Battery trimmers usually recommend 0.065 to 0.080 inch line. Using thicker line than recommended can overload the motor and drain the battery faster.

The ecosystem argument

If you already own a battery-powered tool from a major brand — EGO, DEWALT, Milwaukee, RYOBI, Makita, or Stihl — the strongest argument for buying a battery trimmer from the same brand is battery compatibility. A $200 trimmer that uses the same batteries as your $150 leaf blower saves you the cost of a separate battery and charger, and you can share spares between tools.

This is the single biggest factor that makes battery trimmers more cost-effective than gas for homeowners who are already in an ecosystem. If you are starting from scratch with no battery tools yet, EGO’s 56V platform and DEWALT’s 60V FlexVolt are the most popular choices for good reason.

The bottom line

Your Situation	Best Choice
Quarter-acre lot, tight budget	Corded electric ($40-80)
Half-acre to one acre, moderate trimming	Battery trimmer in your battery ecosystem ($150-250)
One acre+, heavy weeds, fence lines	Gas trimmer, straight shaft ($200-350)
New homeowner, small yard, unsure	Corded electric first, upgrade later
Already own EGO/DEWALT/RYOBI tools	Battery trimmer in the same ecosystem
Commercial use or full-day trimming	Gas, straight shaft, professional grade ($350-600)

For most St. Charles County homeowners on standard suburban lots, a battery-powered straight-shaft trimmer in the same battery platform as your other yard tools is the right balance of power, convenience, and maintenance-free operation. If your property is small or your budget is tight, a corded electric trimmer is a perfectly good starting point. And if you are maintaining acreage or fighting back heavy weeds, gas is still the right answer.

Need help figuring out what equipment fits your property? Midwest Lawn Care can connect you with local providers who handle trimming, edging, and full-service lawn maintenance — so you do not have to buy anything at all if you would rather spend your weekends doing something else. Request a free quote and we will match you with a vetted local provider.

Last updated: July 2026