20V 4.0AH Battery


If you are looking for more power and longer runtime out of your 20V tools then this is the battery for you. Our 20V 4.0 Ah battery provides 4X the runtime. The battery features an on-board fuel gauge so you know exactly how much charge you have left. It is compatible with all HART 20V power tools and features lithium-ion power for fade-free power for longer-lasting performance. 

20V 4.0AH Battery rollback ribbon tag

20V 4.0AH Battery

Product Description

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What's in the box?

  • (1) 20V 4.0Ah Lithium-Ion Battery

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20V Lithium-Ion

Warranty Information

All HART 20V Power Tool and Lawn & Garden products are covered by a 3-year limited warranty. All HART 40V Outdoor Tools are covered by a 5-year limited warranty. All HART 40V batteries are covered by 3-year limited warranty. Hand Tools (tape measures, hammers, pliers, etc.) are covered by a limited lifetime warranty. Click on the link below for specific warranty details.

Warranty Info

Customer Support

If you have a service-related question or have issues with a tool, visit our support site, where we will be honored to assist you.

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