#1 Home Improvement Retailer
  • More than 30% lighter while holding 300% more power per cell
  • Overcharge protection guarantees long-lasting battery life
  • Premium Samsung SDI lithium-ion battery cells
  • View More Details
0 in stock
Text to Me

Frequently Bought Together


Product Overview

The Westinghouse 40-Volt 2.5 Ah Lithium-Ion Battery is the source of an emissions-free, high performance alternative to gas powered tools. Interchangeable between all Westinghouse 40-Volt Cordless Lawn and Garden Tools, this versatile battery pack allows for maximum work output all day long with its lithium-ion technology powered by Samsung SDI. More than 30% lighter while holding 300% more power per cell than traditional NiCd batteries, the ultra compact 40-Volt Lithium-Ion Battery boasts shorter charge times and a longer battery life to keep your lawn looking precise at a moments notice. With no memory effect and extremely low self-discharge rates, the 40-Volt Battery does not require maintenance and will stay charged on the shelf to ensure you're always ready to go.
  • Powered by Samsung SDI lithium-ion battery technology
  • 4-LED indicator lights communicate real-time updates on battery levels with a push of the button
  • Maximum performance, high capacity 40-Volt lithium-ion batteries have a long life cycle to extend run times over traditional NiCd batteries
  • Built-in overcharge protection safeguards against long term drainage of battery life

  • California residents

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Outdoor Power Batteries & Chargers

current product
40V 2.5 Ah Battery
Exclusive40V Lithium-Ion Rapid ChargerFlex-Force Power System 60-Volt Max 2.0 Ah Lithium-Ion BatteryFlex-Force Power System 60-Volt Max 2.5 Ah Lithium-Ion L135 Battery
Name40V 2.5 Ah Battery40V Lithium-Ion Rapid ChargerFlex-Force Power System 60-Volt Max 2.0 Ah Lithium-Ion BatteryFlex-Force Power System 60-Volt Max 2.5 Ah Lithium-Ion L135 Battery
Used with Equipment TypeBlower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,String TrimmerBlower,Chainsaw,Cultivator/ Tiller,Generator,Hedge Trimmer,Mower,Powerhead,Pressure Washer,Push Mower,Snow Blower,String TrimmerBlower,Push Mower,TrimmerBlower,Push Mower,Trimmer
Fits Models40VMAX+Works with all RYOBI 40-Volt lithium-ion toolsAll Toro 60V productAll Toro 60V product
Battery Amp Hours2.5 2.02.5
Part TypeCordless BatteryBattery ChargerCordless BatteryCordless Battery
Voltage (volts)40406060
View ProductView ProductView ProductView Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)


Battery Amp Hours
Fits Brands
Fits Models
Number of Batteries Included
Part Type
Cordless Battery
Used with Equipment Type
Blower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,String Trimmer
Voltage (volts)

Warranty / Certifications

Manufacturer Warranty
2 Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 20 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 20 reviews
Perfect! Just what I needed and it works beautifully!...
Perfect! Just what I needed and it works beautifully!
  • Verified Purchase
great features
works excellent. Fast shipping. Quiet operation. Plenty of power.
    • Recommended
    Easy to start and run. Compact and easy to store when not in use
      • Recommended
      good power!
      Beats gas trimmers hands down. No gas mixing just plug and go.
        • Recommended
        Great trimmer
        Happy with this trimmer. I can do my entire yard with one charge.
          • Recommended
          Great power and long battery
          Trimmer and blower both have great power and long battery life
            • Recommended
            The battery lasted long enough for me to cut and trim two of my highest bushes without any issues or stagnation.
              • Recommended
              work great
              use it since 4 month no issue, light and can get the job of trimming edging blowing straight
                • Recommended
                This had the features that I wanted
                I just bought this because it had the features that I wanted: dual line trimmer head and rotating trimmer head for easy edging. It is a powerful machine and works well. The assembly instructions are somewhat sketchy but ultimately it goes together without much trouble. It was a bit awkward to use at first because I am not use to this full size trimmer, but I expect that it will get more comfortable over time.
                  • Recommended
                  Bought this a month ago and it works great. I use it all the time to tidy up the yard!
                    • Recommended
                    Showing 1-10 of 20 reviews