1. Non-rechargeable battery, any attempt to charge this battery can cause cracking or leakage. 2. Do not recharge or force-discharge the battery. 3. Take out the battery from the instrument if the on-load voltage of the battery is less than 2V. 4. Take out the battery and keep it under the condition of normal temperature and low humidity when the battery is not used for a long time. 5. Clean the battery with a dry cloth before use if the connection of the battery is dirty.
What's the difference between a rechargeable battery and a non-rechargeable battery?
The main difference is that rechargeable batteries can be put to use again after have been fully discharged once, while non-rechargeable batteries cannot be charged again once they discharge fully.