Bulk up your power arsenal with the Greenworks Pro 60V 4.0Ah battery down at a new $88 low ($81 off)

Update 9/15: Amazon has dropped the price a little lower on this 60V Greenworks Pro 4.0Ah battery to a new all-time low of $88.42 shipped, after clipping the on-page coupon. Amazon is offering Greenworks fans a chance to expand their battery collection with the Greenworks Pro 60V 4.0Ah High-Current Battery falling to $89.98 shipped, after clipping the on-page coupon. This pro-tier power source usually goes for $169 on average at full price, with discounts during its history on the market having