Internet #309865482

Model #2B4AH

20-Volt Lithium-Ion Compact Battery Pack 4.0 Ah

  • Lightweight and neatly compact 4.0 Ah lithium-ion battery
  • Maintenance-free plug-and-play battery easily snaps into place
  • Charges in 120 minutes with Westinghouse 20V+ Rapid Charger
  • See More Details

Product Overview

The Westinghouse 20V+ 4.0 Ah Lithium-Ion Battery offers a convenient emissions-free alternative to gas-powered tools. Interchangeable between Westinghouse 20V+® Cordless Lawn & Garden Tools, this durable battery pack harnesses lithium-ion energy that gets through trimming, edging, and cutting in a snap. More than 30% lighter while holding 300% more power per cell than traditional nickel-cadmium batteries, this compact battery boasts shorter charge times and longer battery life to keep your lawn looking precise at a moment’s notice. Westinghouse 20V+® Lithium-Ion Batteries do not require maintenance and will stay charged on the shelf to ensure you’re always ready to go.
  • High capacity 20V 4.0 Ah Li-on batteries have an extended life cycle to increase run times over traditional NiCd batteries
  • Lithium-ion technology produces ultra compact, ultra light batteries that hold triple the power than standard batteries
  • No memory effect with exceptionally low self-discharge rates to ensure long-term battery life
  • 4-LED indicator lights communicate real-time battery levels with a push of the button
  • Ergonomic slide-style battery allows for convenient and hassle-free use
  • Charges quickly in less than 120 minutes to power your tools
  • Compatible with Westinghouse 20V+® Cordless Lawn & Garden Tools
  • All chargers and lithium-ion batteries include a 2-year warranty with lifetime technical support

  • 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
20-Volt Lithium-Ion Compact Battery Pack 4.0 Ah
24-Volt iON+ Starter Kit with 2.0 Ah Battery Plus Charger24-Volt iON+ Starter Kit with 2.0 Ah Battery and Quick Charger24-Volt Lithium-ion 5.0 Ah USB Battery
BrandWestinghouseSnow JoeSnow JoeGreenworks
Name20-Volt Lithium-Ion Compact Battery Pack 4.0 Ah24-Volt iON+ Starter Kit with 2.0 Ah Battery Plus Charger24-Volt iON+ Starter Kit with 2.0 Ah Battery and Quick Charger24-Volt Lithium-ion 5.0 Ah USB Battery
Used with Equipment TypeBlower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,String TrimmerChainsaw,Cultivator/ Tiller,Hedge Trimmer,Snow Blower,String TrimmerChainsaw,Cultivator/ Tiller,Hedge Trimmer,Snow Blower,String TrimmerBlower,Chainsaw,Hedge Trimmer,Mower,Snow Blower,String Trimmer
Fits ModelsWestinghouseAll cordless 24V iON+ modelsAll cordless 24V iON+ modelsGreenworks 24-Volt
View ProductView ProductView ProductView Product



Product Depth (in.)
Product Height (in.)
2.1 in
Product Width (in.)
3.2 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 Year

Questions & Answers


I been waiting for the 20 volt battery 4AH ? Homedepot sold me the leal blower. They said it ou...

Asked by vee September 15, 2019

Customer Reviews

  • 4.8
    out of 103 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 103 reviews
Quite and great
Great Product. Very efficient would purchase again.
by Manuel4444
Great future
I bot dis on 16 of agosto 2020 and iam so happy i did
by Tata
built very well an great features
Love the remote start an the great durablity easy to haul an powers all my appliances with ease
by Homer
Great generator
Great product for the price! Would recommend this to anyone
by Eetter4
nice fectures, easy to handle, small enough to store away.. thank you
by the goot
Excellent feature
We bought this a little over a month ago and it was delayed shipping due to the big snow storm didn’t get to use it but it’s here now and all ready to go. We love every feature on it. Especially the electric start. Thanks
by Char
Love my Generator
I bought this generator right before Christmas and I have now used it several times and very impressed with it. It was easy to get going and have had no problems with it this far. I would recommend to all that may be in the market for a generator at a very fair price.
by Jamesjr
Great service
It was delivered faster than we expected Very easy to operate
by Eric66
Great Product
I bought this a few weeks ago and we used it for the Ice Storm that hit us and it did it’s job, I highly recommend this to others.
by Isaac26
Great generator
Seems like very good quality. Runs well and starts right up. It is a little loud but that was expected
by Michael0407
Showing 1-10 of 103 reviews