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I believe the Greenworks customer service representative stated that the 4.0 Ah/80 volt battery can be used but isn't much better than the battery that comes with the product at purchase.
Sorry, there was a problem. Please try again later.Hello Rick - If they are the same voltage you can cross between tools and chargers. The only issues you may experience using a heavier battery is the added weight to the unit which may not be as comfortable to handle as a smaller battery.
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