My Bosch Isio battery operated hedge trimmer has just stopped working. It was fine last time I used it but since I charged it up to use yesterday it just won't work at all. What do you think is wrong with it? I live on my own and rely on it to cut my front hedge without having to ask for help. I have had it for about two years so obviously I know how to use the on/off button and the lock-off button. Now the green light comes on when the on/off switch is on but there is no response at all from the motor.