Top String Trimmer Batteries for Large Yards
For large yards, the EGO Power+ 56V 5.0Ah battery stands out as the top pick due to its high capacity and compatibility with a wide range of EGO trimmers. It offers extended runtime and rapid charging, but it is heavier than some alternatives. Owners report that it handles thick weeds without bogging down, though the cost is a consideration.
Tackling a large yard with a string trimmer demands a battery that can keep up. Standard batteries often die before the job is done, leaving you frustrated. We compared the best battery options for large yards to help you choose one that offers long runtime and reliable power.
Our selection focuses on batteries from leading brands like EGO, Greenworks, DEWALT, Makita, Ryobi, and Milwaukee. We considered factors like capacity, charging speed, and durability to ensure you get the most value for your money.
Our top picks
EGO Power+ 56V 5.0Ah Battery
The EGO Power+ 56V 5.0Ah battery is a powerhouse for large properties. It delivers excellent runtime and works with all EGO 56V tools, including string trimmers. Owners report it lasts through long sessions without needing a recharge. The fuel gauge is a handy feature, and the battery charges quickly with the rapid charger.
Pros
- Long runtime for large areas
- Fast charging capability
- Fuel gauge shows remaining charge
Cons
- Heavier than lower capacity batteries
- Higher price point
Greenworks 40V 5.0Ah Battery
Greenworks offers a 40V 5.0Ah battery that provides solid runtime for large yards. It is compatible with many Greenworks tools, including string trimmers. Owners say it holds up well and charges reasonably fast. This battery is lighter than some 56V options, making it easier to handle, though it may not have as much raw power.
Pros
- Affordable price
- Good runtime
- Lighter weight
Cons
- Lower voltage may struggle with thick growth
- Charger not included with battery only
DEWALT 20V MAX 6.0Ah Battery
If you already own DEWALT 20V tools, this 6.0Ah battery is a smart addition. It doubles the runtime of standard 2.0Ah batteries and works with DEWALT string trimmers. Owners appreciate the durable build and consistent power. The battery fits most DEWALT 20V tools, making it versatile for other yard tasks.
Pros
- High capacity for extended runtime
- Durable construction
- Works with many DEWALT tools
Cons
- Requires DEWALT charger (not included)
- Heavier than smaller batteries
Makita 18V LXT 5.0Ah Battery
Makita’s 18V LXT 5.0Ah battery is a dependable choice for large yards. It delivers consistent power and is compatible with Makita string trimmers. Owners report that it lasts longer than lower amp-hour versions and charges efficiently. The battery is known for its longevity and resistance to over-discharge.
Pros
- Reliable power output
- Long lifespan
- Fast charging with compatible charger
Cons
- Only compatible with Makita tools
- Not as high voltage as some competitors
Ryobi 40V 6.0Ah Battery
Ryobi’s 40V 6.0Ah battery is designed for extended runtime, perfect for large yards. It works with Ryobi 40V string trimmers and other outdoor tools. Owners like the battery life and the fact that it charges in about 45 minutes with the rapid charger. It’s a bit heavy, but the trade-off is worth it for the extra power.
Pros
- Excellent runtime
- Rapid charging available
- Wide range of compatible tools
Cons
- Heavier and bulkier
- Price may be higher than other 40V options
Milwaukee M18 REDLITHIUM High Output 6.0Ah Battery
Milwaukee’s M18 REDLITHIUM High Output battery delivers serious power for demanding trimming tasks. It provides more runtime and run time compared to standard batteries and works with Milwaukee M18 string trimmers. Owners report that it handles thick brush with ease and holds up well in hot conditions. This battery is an investment but offers top-tier performance.
Pros
- High power output
- Excellent durability
- Consistent performance in heat
Cons
- Expensive
- Only for Milwaukee M18 ecosystem
Greenworks 60V 4.0Ah Battery
Greenworks 60V 4.0Ah battery offers higher voltage for more torque and power. It is compatible with Greenworks Pro 60V string trimmers. Owners say it provides strong performance for large yards, though the runtime is shorter than 5.0Ah versions. The battery is well-built and charges quickly.
Pros
- More power for tough jobs
- Fast charging
- Lighter than higher capacity batteries
Cons
- Shorter runtime compared to 5.0Ah
- Limited to 60V Greenworks tools
Before you buy
Side by side
| # | Model | Voltage | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | EGO Power+ 56V 5.0Ah Battery | 56V | Best overall for large yards | 9.6 | Check price |
| 2 | Greenworks 40V 5.0Ah Battery | 40V | Budget-friendly for large yards | 9.1 | Check price |
| 3 | DEWALT 20V MAX 6.0Ah Battery | 20V | For DEWALT users with large yards | 9.0 | Check price |
| 4 | Makita 18V LXT 5.0Ah Battery | 18V | Reliable performance for Makita users | 8.9 | Check price |
| 5 | Ryobi 40V 6.0Ah Battery | 40V | Great runtime for Ryobi owners | 8.8 | Check price |
| 6 | Milwaukee M18 REDLITHIUM High Output 6.0Ah Battery | 18V | Best for heavy-duty use | 9.2 | Check price |
| 7 | Greenworks 60V 4.0Ah Battery | 60V | Best for power with Greenworks Pro | 8.7 | Check price |
Frequently asked questions
How long does a string trimmer battery last on a large yard?
Runtime varies based on battery capacity and trimmer efficiency. For a 5.0Ah 40V battery, expect about 45 minutes to an hour of continuous use. Larger yards may require two batteries or a higher capacity battery.
Can I use a higher amp-hour battery in my trimmer?
Yes, if the voltage matches. Higher amp-hour batteries provide longer runtime and are generally safe to use, but they may be heavier and larger, affecting balance.
Are higher voltage batteries better for large yards?
Higher voltage (e.g., 60V) provides more power for cutting thick vegetation, but it may not always mean longer runtime. Consider both voltage and capacity for the best performance.
What is the best battery brand for string trimmers?
Brands like EGO, Greenworks, DEWALT, and Milwaukee are highly rated. The best for you depends on your existing tools and budget. EGO is known for high capacity and fast charging, while DEWALT offers durability.
How long does it take to charge a string trimmer battery?
Charging times range from 30 minutes to over an hour with standard chargers. Rapid chargers can significantly reduce this time. Check the battery and charger specifications.
Can I use a battery from another brand in my trimmer?
Generally no, due to voltage and connector differences. Using incompatible batteries can damage the tool or pose safety risks. Stick to the brand’s compatible batteries.
What is the lifespan of a lithium-ion battery for a string trimmer?
Lithium-ion batteries typically last 3 to 5 years with proper care. Over time, capacity decreases. Storing them at moderate temperatures and avoiding full discharges can extend their life.
How many batteries do I need for a large yard?
For a large yard, two batteries are recommended. While one is in use, the other can charge. This allows you to cover a bigger area without downtime.
Our pick
For most homeowners with large yards, the EGO Power+ 56V 5.0Ah battery is the best choice due to its superior runtime and fast charging. If you are on a budget, the Greenworks 40V 5.0Ah offers excellent value. For those invested in DEWALT or Milwaukee systems, their high-capacity batteries are reliable options. Ultimately, prioritize compatibility with your existing tools and choose a battery with at least 5.0Ah capacity to ensure you can finish the job without interruption.
