40V Replacement Battery

For cordless yard work, a battery that fits the tool you already own can be more useful than switching to a new platform. This 40V lithium replacement battery is listed for Greenworks G-MAX tools and has a 6.0Ah capacity, with four LED indicators for checking its charge level. Its appeal is straightforward: it offers a replacement option for specific compatible tools, but the model list matters more than the broad 40V label.

Key specifications

The battery is lithium, rated at 40V and 6.0Ah, with a stated wattage of 240Wh. Four LEDs show remaining power, which can help you decide whether to recharge before starting a task or pause work to swap batteries. The listing names a range of Greenworks batteries and tools, including 29462, 29252, 20202, 22262, 25312, 25322, 20642, 22272, 27062, and 21242. Treat that as a model-specific compatibility claim, not a guarantee that this battery fits every Greenworks 40V tool. The listing also describes the battery as having no memory effect, but provides no runtime figures or charging-time details.

Who it’s for

This is aimed at owners of listed Greenworks 40V G-MAX equipment who need a replacement battery or want another battery for work sessions that outlast one charge. For example, if you’re using a compatible cordless chainsaw to cut branches, the LEDs give you a quick charge check before you head back outside. A solid pick if your exact tool or original battery model appears in the compatibility information and you want a 6.0Ah replacement. If you’re choosing a battery for a tool not named there, voltage alone isn’t enough to establish fit, compatibility needs to match the model.

What you get

The product information describes a single replacement battery, with lithium cells, a 40V rating, 6.0Ah capacity, and four charge-indicator LEDs. It does not provide details about an included charger, dimensions, weight, or a specific runtime, so those points shouldn’t be assumed. On the spec sheet, the capacity and indicator are the practical draws: one gives a clear battery rating, while the other offers a quick visual check of remaining charge. Compared with buying into a different cordless tool system, a compatible replacement keeps the focus on continuing to use equipment you already have. A new tool-and-battery setup may make more sense if your current tool isn’t among the listed models.

Practical doubts

Will it fit every Greenworks 40V tool? The listing names selected G-MAX tools and battery models, not every tool in the 40V range. Match your tool or original battery model against that list before choosing it.

How can you check the charge? Four LED indicators are provided to show remaining power. The listing doesn’t specify exact charge percentages for the lights.

Does the listing state how long it runs? No runtime is given. Actual working time also depends on the tool and task, so the 6.0Ah rating alone doesn’t establish how long a charge will last.

Buying verdict

This replacement makes the most sense when you’ve confirmed a match with one of the named Greenworks models and need a 40V battery with a 6.0Ah capacity. The LED indicator is a useful everyday detail, especially when planning a job away from the charger. You may want to skip it if you need confirmed compatibility with an unlisted tool, a stated runtime, or clear information about what accessories are included. Compatibility is the deciding point here, not the broad promise of a 40V fit.