29472 40V 6.0Ah Lithium Battery Replacement for Greenworks - Long Run

In this review the 29472 40V 6.0Ah lithium replacement battery is examined for homeowners and occasional pros who need a higher-capacity pack for Greenworks G-MAX 40V tools. The bottom line: it is a straightforward swap that delivers noticeably more run time than smaller 2Ah or 4Ah packs, and it fits a wide range of mowers, trimmers and blowers. Performance varies by tool and workload, but the consistent fit, compliance with FCC RoHS and CE safety testing, and the 6.0Ah capacity make it a practical, cost-effective option for anyone who wants fewer charging interruptions.

Key Features

• 40 Volt output: Provides full compatibility and the correct voltage for Greenworks G-MAX 40V lawn mowers and power tools so tools run as intended without modification.
• 6.0Ah high capacity: Offers longer run times than lower-capacity packs, cutting down the number of battery swaps or charges during medium-length jobs.
• Lithium ion battery type: Built with Li-ion cells for faster charging, lower self-discharge and no memory effect compared with older chemistries.
• Broad compatibility: Listed as compatible with many Greenworks model numbers and chargers so it can replace several OEM battery SKUs across mowers, trimmers and blowers.
• Safety compliance: Complies with FCC, RoHS and CE security testing standards, which helps reduce concerns about electrical safety and certification.
• Warranty and returns: Backed by a 30-day return window and 12 months of product quality service, giving a buffer for early issues or fit checks.

Who It's For

This pack is best for homeowners with midsize yards who already own Greenworks G-MAX 40V tools and want extra runtime without carrying multiple small batteries. It is also useful for occasional contractors who need a dependable replacement that fits a wide set of models.

Users who need maximum professional runtime for continuous heavy cutting all day, or who require official OEM branding for warranty reasons, may prefer higher-capacity OEM systems or multiple batteries and a fast charger. Those expecting identical runtime in every tool should note that actual run time depends on the tool and workload.

Pros & Cons

Pros

• Higher 6.0Ah capacity extends run time compared with smaller packs, reducing interruptions during yard work.
• Plug-and-play compatibility with many Greenworks G-MAX 40V mowers and tools ensures an easy swap and correct fit.
• Li-ion cells and safety compliance point to efficient charging behavior and meeting common safety standards.

Cons

• Reported run time is mixed by users; some tools under heavy load may only see shorter duration than expected, so peak runtime varies.
• Not OEM-branded, so buyers seeking factory-labeled batteries for warranty reasons should verify their tool warranty terms.

Specifications

Our Verdict

The 29472 40V 6.0Ah pack is a solid value for Greenworks G-MAX 40V owners who want longer run times and a reliable physical fit across many tools. It is a practical upgrade over lower-capacity cells and offers safety certifications and a modest warranty. Buyers who need guaranteed OEM warranty coverage or absolute maximum professional duty runtime should evaluate OEM options or additional batteries, but for most homeowner needs this battery offers good performance for the price.

Frequently Asked Questions

Will this battery fit my Greenworks mower?
It is designed to be compatible with Greenworks G-MAX 40V mowers and many listed model numbers; check your tool model against the compatibility list to confirm fit.

How long will the battery last on a single charge?
Run time varies by tool and workload; many users report longer durations than smaller packs, while some heavy-load use cases can run shorter than expected.

Is the battery safe and certified?
Yes, the pack complies with FCC, RoHS and CE security testing standards and uses lithium ion cells with standard safety measures.