Hello Joe 237,
Thank you for your review. We are sorry to hear about the experience you have encountered with this battery. The overall 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. If the battery has been stored with little to no charge for a long period of time, the battery will go into recovery mode, which will take 24 hrs to recharge. This helps enhance the life of the battery. Once it is fully charged, the next charge will return to standard charging. Please know that our batteries are covered by warranty for a 2-year period from the date of purchase. We hope these tips will help however, if they do not please kindly contact us at 1-888-909-6757 (1-888-90WORKS) or by email on info@greenworkstools.com for further assistance.