Important:

1. ever completely discharge the li-ion battery ( below 2.5V under load ).
2. Charge fully to 4.2V before first use.
3. Never attach any metal moving part |magnet| to the top-positive or the bottom-negative battery contact.
4. Never use force to install (insert) Li-ion battery.
5. Do not use old and new battery cells together.
6. Use only a high-quality battery charger.
7. Do not expose to heat.
8. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts).
9. Keep battery that is not in use in the plastic holder (or any insulating [plastic] container).
10. Do not charge a battery over 4.22V (another reason to use a high-quality battery charger).
11. Don’t charge unattended.
12. Do not store your li-ion batteries fully charged (for an extended period of time).
13. Store in cold and dry place at approximately 3.7V (storage charge).
14. After the battery is discharged-don’t leave it discharged=>charge it as soon as possible
15. The user should have enough knowledge on Li-Ion rechargeable batteries: in discharging, charging, assembly, handling, and proper Li-ion battery storage before use.