2 Packs 6ah 40V Lithium Ion Replacement Battery for Greenworks

In this review of the 2 Packs 6ah 40V Lithium Ion Replacement Battery for Greenworks, the bottom line is straightforward: it is for homeowners and weekend landscapers who need noticeably more runtime from Greenworks 40V G-MAX tools without buying new equipment. The reviewer found the upgraded 6000mAh capacity delivers roughly three times the usable life of a standard 2.0Ah pack in real tasks, and the four-level LED indicator plus cooling holes make it easy to manage charging and heat during heavy use. This review focuses on compatibility, runtime, and build features rather than promotional claims.

Key Features

• High capacity: The 6000mAh Lithium ion cells provide substantially longer run time for mowers, trimmers, and blowers, reducing interruptions during yard work.
• Wide compatibility: Designed as a replacement for several Greenworks 40V models including 29472, 29462 and 29482, it fits a long list of G-MAX cordless lawn mower tools.
• Four-level LED indicator: The integrated LED charge indicator allows quick checks of remaining battery so users can plan tasks and charging time.
• Enhanced cooling: Surrounding heat release holes help dissipate heat faster during heavy use for more consistent performance.
• Multiple protections: Built-in protections against short circuit, over-charge, over-discharge, over-temperature, over-current and over-voltage improve safety during charging and operation.
• Easy swap design: The pack snaps in and out of compatible tools for fast replacement and minimal downtime.

Who It's For

This battery is best for homeowners and small property caretakers who already own Greenworks 40V G-MAX tools and want a cost-effective way to extend run time across several devices like mowers, trimmers, blowers and chainsaws. It suits users who value quick charging and want the convenience of an LED fuel gauge and added thermal relief when running demanding jobs.

Those who should look elsewhere include owners of first-generation Greenworks batteries (this is not for Gen 1) or shoppers who prefer OEM-branded packs with manufacturer warranty coverage; also buyers who need an entire charging ecosystem at higher amperage should verify charger compatibility before purchase.

Pros & Cons

Pros

• Noticeably longer runtime from the 6000mAh cells compared with 2.0Ah packs.
• Useful four-level LED indicator and fast charge behavior praised by customers.
• Multiple safety protections add confidence during heavy yard work.
• Good value for money compared with buying additional low-capacity packs.

Cons

• Not compatible with Gen 1 Greenworks tools, so double-check model before buying.
• Replacement pack requires a compatible charger and may not include OEM warranty coverage.

Specifications

Our Verdict

For users of Greenworks 40V G-MAX tools who want more runtime without replacing their tools, these 6Ah replacement packs are a practical, value-oriented upgrade. The larger capacity, LED indicator and thermal relief features make yard tasks smoother, though buyers should confirm tool generation and charger compatibility before purchase.

Frequently Asked Questions

Will this work with my Greenworks 40V mower?
If your mower is one of the listed compatible models such as 29472, 29462 or 29482 and not a Gen 1 tool, this replacement battery is designed to fit and power those G-MAX 40V mowers.

How do I check remaining charge?
The pack includes a four-level LED battery charge indicator so you can press the indicator and see an approximate state of charge before use.

Is this safer than older packs?
Yes, the pack includes multiple safety protections including over-charge and over-temperature protection and also has surrounding heat release holes to help manage heat during heavy duty use.