Greenworks 40V Battery Not Charging - Blinking Red

If your greenworks 40v battery is blinking red when put it on the charger, it means the battery is bad and cannot be charged. Sometimes false positive happens and you could try the jump start method below to fix the greenworks 40v battery not charging issue. 1. Get another working greenworks 40v battery 2. Identify positive and negative terminal 3. Use a wire to connect positive to positive terminal and negative to negative terminal 4. Stay connected for around 15 seconds then remove Now try to recharge it on the charger again. If it is blinking green means the battery is now charging fine.