Purchased about a month ago. My mower came with a 5.0 battery and I added this one to increase running time. I looked at the 2.5 and 5.0 replacements and this was a good compromise. It's perfectly met my needs.
after 1 year battery last for 15 to 20 min before need to charge
No, I would not recommend this to a friend.
Response from greenworkstools.comBy Greenworks, Greenworks Customer Support, July 8, 2021
Thank you for your feedback. We are sorry to hear about the experience you have encountered with these batteries. Here are a few troubleshooting suggestions to check out. 1) When the battery is inserted on the charger, the light should begin flashing green to indicate the battery is charging. If this light is not igniting or is flashing red, this may indicate an issue and we would be interested in hearing more about this. If the light simply goes solid red, try removing the battery and unplugging the charger for about 10 minutes and place them both indoors in a room temperature setting, as this might indicate the battery is at the incorrect temperature to be charged. 2) Ensure that the battery has been fully inserted into the charger. Sometimes this requires a firm push into place to make sure that it has been properly seated. 3) Try resetting the charger. To do this, simply unplug it for approximately 10 minutes and then plug it back in and try reinserting the battery. If the charger has been plugged in for extended periods of time, this can sometimes cause the charger to malfunction. The battery life is dependent on many factors such as where they have been stored, charged, and handled. When the battery will not be in use, we suggest storing it indoors, in a cool dry area - away from direct sunlight. Leave the charger unplugged and the battery disconnected from the charger, unless it needs charging. It is recommended to store the battery with a full charge, and if it is being stored for a period where no use is expected, to check on the charge every couple of months. If you notice the charge has dropped, we advise charging the battery back up to full before returning it to its safe storage place. Following these steps will ensure you receive the most of the battery life. For further details or discussion, please use the customer contact page to send us a message or call us at 1-888-909-6757.
I bought the extra battery for my GW mower and it really comes in handy to have that 2nd battery so it can auto switch over. The batteries charge up fairly quickly as well.