Is this battery worth it over a Greenworks OEM pack?

At $56.98 at eBay as of November 4, 2026, it undercuts most Greenworks-branded 4.0Ah packs. It is listed as a replacement battery, so weigh the lower price against the shorter warranty you typically get from third-party sellers.

Will it fit my Greenworks 40V mower or trimmer?

It fits the Greenworks 40V G-MAX system, which covers 75+ tools including models 29472, 29462, 20202 and 29252. Check your tool's model number against the 40V G-MAX list before buying.

Do I need to buy a charger too?

Yes, unless you pick a bundle that includes one. The battery works with standard Greenworks 40V chargers, and a full charge takes about 120 minutes.

How long does the 4.0Ah pack run?

Runtime depends on the tool. Greenworks rates it at 144Wh, and the listing claims about 3 times the runtime of NiCad batteries. Expect shorter runs in mowers and blowers than in trimmers.

When is the price lowest?

The $56.98 eBay price as of November 4, 2026 is already near the bottom of its recent range across 6 stores. Battery prices often dip during spring lawn-care sales and Black Friday.

One 40V 4.0Ah lithium-ion battery and a user manual. Some package options add a charger; check the selected option before ordering.

What do buyers say about the Battery for power tools extra digital 40V 4.0Ah Li-ion?

Buyers like: Great price and as described; Fast shipping; Well packaged. Common complaints: Shipping took over a week; Packaging could be better; box opened and battery exposed with little bubble wrap.