Greenworks PRO 80V 4.0Ah Lithium-Ion Battery ((Genuine Greenworks Battery / 75+ Compatible Tools)

Very happy with this battery purchase. It definitely has much more power storage than the original 80V 2.0 Ah batteries and works really well. Fits the original charger without any problem and pops into our lawnmower without any issue. (The cover still closes). Be aware though that it is definitely a few inches longer than the original batteries. This could affect balance on certain shoulder/hand held items such as weed eaters. For lawnmowers and snowblowers though it's definitely a great upgrade.

Highly reliable battery. Crazy powerful. Moves upwards of 5 plus inches of heavy snow. Capable of clearing driveway and wheelchair ramp as well as path across deck to back door without recharging. Yet when depleted recharges in under 2 hours (more like 1 hour but I've not really timed it). It is so fast that I'm surprised when compared with my other rechargeable systems. 8-30-18. No change in previous but some additional comments. Look no further than Greenworks yard equipment and batteries. I am 100% satisfied with their selection and the quality of workmanship. Love the batteries - more power for mowing but limited endurance (takes more than one battery to cut one yard of approx 2,900 sq ft.) but then again I'm cheap and can only afford a 2AH version of this powerhouse. When the snow returns this battery will out perform oil and gas all day long.

Worked very well with the Greenworks snow blower. Bought it so I don’t have to wait for the first battery to charge in order to continue clearing snow (long driveway and large parking area). Has worked as intended but one thing to note is it fits ever so slightly tighter than the original battery w/ snow blower so it’s always a bit of a chore to swap it out of the machine. Patience is key.

Likes: Fair price, good performance, no cords, no gas. Dislikes: Charge time Currently using the 4 AH battery in the 80V Greenworks Pro leaf blower. Also have the 80V String Trimmer and expect awesome performance with that tool next spring. Leaf blower runtime with 4 AH battery: 35 minutes (at 85 degrees F outside temp) Used the "boost" button for maybe 60 seconds total. Comparison: Using 2.5 AH 80V battery, same conditions, got 17 minutes run time. On a 40 degree F day, 2.5 AH battery ran 23 minutes so expect even more run time from the 4 amp battery as the temps drop again. The 2.5 AH battery runs for 30-40 minutes in warmer weather with the string trimmer, depending on how thick the weeds are. I expect 60-70 runtime with the 4 AH battery on the string trimmer. Charge time 4 AH: From fully depleted to full charge, about 50-55 minutes. The 2.5 AH charges in about 25 minutes for comparison. I actually think that's a better runtime to charge time ratio. I just purchased a second 2.5 AH battery because the runtime to charge time ratio is better. I might have to swap them frequently, but there will always be one fully charged by the time one runs out. You might think that sounds like a hassle but compare swapping a battery to mixing oil and fuel, pull starts, or dragging a cord around the yard. You will not be disappointed with Greenworks 80V batteries.

Cry one time as you spend a bit more on the authentic, or cry many times as you repeatedly pay for poor quality. I'm done with the off-brand, replacement batteries. Bought this authentic one, and no more electrical gremlins. I should have done it years ago.