If your trimmer is running low on battery or stops working, please fully recharge your device before any further use.
If your trimmer runs on disposable AA batteries, it might be time to replace the batteries. When replacing the batteries, make sure that you use the appropriate batteries for the device as specified in the user manual. Do not mix different types of batteries or new and used batteries. When putting in the batteries make sure the + and - poles point in the right direction.