Guidelines for charging the battery

1. You should charge your battery at least for 14 to 18 hours immediately after each time of use. Do not wait for 3 days or more before you want to use the unit next time. If a run-out battery is left for too long, it will be ruined and can never be recharged again.

2. Always keep the switch off when you are not using the unit. If the switch is on, the battery will run out quickly, and if it does not get recharged on time, it will ruin your battery.

3. If you need to store your unit for a period of time, please charge your battery at least once per month. If failed to do so, it will severely reduce the life time of the battery.